Merge branch 'develop' into feature/brc20-module-api

* feat(btcutils): add bitcoin utility functions

* feat(btcutils): add bitcoin signature verification

.dockerignore

@@ -0,0 +1,18 @@
+.git
+.gitignore
+.github
+.vscode
+**/*.md
+**/*.log
+.DS_Store
+
+# Docker
+Dockerfile
+.dockerignore
+docker-compose.yml
+
+# Go
+.golangci.yaml
+cmd.local
+config.*.y*ml
+config.y*ml

.github/CODE_OF_CONDUCT.md

@@ -0,0 +1 @@
+# Contributor Covenant Code of Conduct

.github/CONTRIBUTING.md

@@ -0,0 +1,34 @@
+# Contributing
+
+Please note: we have a [code of conduct](https://github.com/gaze-network/gaze-indexer/blob/main/.github/CODE_OF_CONDUCT.md), please follow it in all your interactions with the Gaze Network project.
+
+## Pull Requests or Commits
+
+#### Message structured
+
+```plaintext
+<type>(optional scope):<description>
+```
+
+The `<type>` must be one of the following:
+
+> feat:, refactor:, fix:, doc:, style:, perf:, test:, chore:, ci:, build:
+
+- feat(runes): add Runes module to the project
+- refactor: change project structure
+- fix(btc): fix chain reorganization issue
+- doc: update \`run\` command documentation
+- style: fix linting issues
+- perf: improve performance of the bitcoin node datasource
+- test(runes): add unit tests for etching logic
+- chore: bump dependencies versions
+- ci: update CI configuration
+- build: update Dockerfile to use alpine
+
+# 👍 Contribute
+
+If you want to say **thank you** and/or support the active development of `Fiber`:
+
+1. Add a [GitHub Star](https://github.com/gaze-network/gaze-indexer/stargazers) to the project.
+2. Follow and mention our [Twitter (𝕏)](https://twitter.com/Gaze_Network).
+3. Write a review or tutorial on [Medium](https://medium.com/), [Dev.to](https://dev.to/) or personal blog.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,22 @@
+## Description
+
+Please provide a clear and concise description of the changes you've made and the problem they address. Include the purpose of the change, any relevant issues it solves, and the benefits it brings to the project. If this change introduces new features or adjustments, highlight them here.
+
+Fixes # (issue)
+
+## Type of change
+
+What types of changes does your code introduce to Appium?
+_Put an `x` in the boxes that apply_
+
+- [ ] Bugfix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Enhancement (improvement to existing features and functionality)
+- [ ] Documentation update (changes to documentation)
+- [ ] Performance improvement (non-breaking change which improves efficiency)
+- [ ] Code consistency (non-breaking change which improves code reliability and robustness)
+
+## Commit formatting
+
+Please follow the commit message conventions for an easy way to identify the purpose or intention of a commit. Check out our commit message conventions in the [CONTRIBUTING.md](https://github.com/gaze-network/gaze-indexer/blob/main/.github/CONTRIBUTING.md#pull-requests-or-commits)

.github/workflows/code-analysis.yml

@@ -0,0 +1,77 @@
+name: Code Analysis & Test
+on:
+  workflow_dispatch:
+  pull_request:
+    branches:
+      - develop
+      - main
+    paths:
+      - "go.mod"
+      - "go.sum"
+      - "**.go"
+      - ".golangci.yaml"
+      - ".github/workflows/code-analysis.yml"
+
+jobs:
+  lint:
+    strategy:
+      matrix:
+        os: ["ubuntu-latest"]
+    name: Lint (${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: "0"
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version-file: "go.mod"
+          cache-dependency-path: "**/*.sum"
+          cache: true # caching and restoring go modules and build outputs.
+
+      - name: Lint
+        uses: reviewdog/action-golangci-lint@v2
+        with: # https://github.com/reviewdog/action-golangci-lint#inputs
+          go_version_file: "go.mod"
+          workdir: ./
+          golangci_lint_flags: "--config=./.golangci.yaml --verbose --new-from-rev=${{ github.event.pull_request.base.sha }}"
+          fail_on_error: true
+  test:
+    strategy:
+      matrix:
+        os: ["ubuntu-latest", "macos-latest", "windows-latest"]
+        go-version: ["1.22.x", "1.x"] # minimum version and latest version
+    name: Test (${{ matrix.os }}/${{ matrix.go-version }})
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: "0"
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: ${{ matrix.go-version }}
+          cache: true # caching and restoring go modules and build outputs.
+      - run: echo "GOVERSION=$(go version)" >> $GITHUB_ENV
+
+      - name: Build
+        run: go build -v ./...
+
+      - name: Test
+        run: go test -json ./... > test_output.json
+
+      - name: Summary Test Results
+        if: always()
+        uses: robherley/go-test-action@v0
+        with:
+          fromJSONFile: test_output.json
+
+      - name: Annotate Test Results
+        if: always()
+        uses: guyarb/golang-test-annotations@v0.5.1
+        with:
+          test-results: test_output.json

.github/workflows/sqlc-verify.yml

@@ -0,0 +1,28 @@
+name: Sqlc ORM Framework Verify
+on:
+  workflow_dispatch:
+  pull_request:
+    branches:
+      - develop
+      - main
+    paths:
+      - "sqlc.yaml"
+      - "**.sql"
+      - ".github/workflows/sqlc-verify.yml"
+
+jobs:
+  sqlc-diff:
+    name: Sqlc Diff Checker
+    runs-on: "ubuntu-latest" # "self-hosted", "ubuntu-latest", "macos-latest", "windows-latest"
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: "0"
+
+      - name: Setup Sqlc
+        uses: sqlc-dev/setup-sqlc@v4
+        with:
+          sqlc-version: "1.26.0"
+
+      - name: Check Diff
+        run: sqlc diff

.gitignore

@@ -3,8 +3,6 @@
 # Eg. ignore.foo_test.go, ignore.credentials.json, ignore.config.yml
 ignore.*
 
-/key
-
 **/cmd.local/**
 **/cmd.local.**/**
 

.vscode/settings.json

@@ -39,7 +39,7 @@
     "ui.completion.usePlaceholders": false,
     "ui.diagnostic.analyses": {
       // https://github.com/golang/tools/blob/master/gopls/doc/analyzers.md
-      // "fieldalignment": false,
+      "fieldalignment": false,
       "nilness": true,
       "shadow": false,
       "unusedparams": true,

Dockerfile

@@ -3,15 +3,15 @@ FROM golang:1.22 as builder
 WORKDIR /app
 
 COPY go.mod go.sum ./
-RUN go mod download
+RUN --mount=type=cache,target=/go/pkg/mod/ go mod download
 
 COPY ./ ./
 
 ENV GOOS=linux
 ENV CGO_ENABLED=0
 
-RUN go build \
-          -o main ./main.go
+RUN --mount=type=cache,target=/go/pkg/mod/ \
+    go build -o main ./main.go
 
 FROM alpine:latest
 
@@ -19,9 +19,10 @@ WORKDIR /app
 
 RUN apk --no-cache add ca-certificates tzdata
 
-
 COPY --from=builder /app/main .
+COPY --from=builder /app/modules ./modules
 
-# You can set `TZ` environment variable to change the timezone
+# You can set TZ identifier to change the timezone, See https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List
+# ENV TZ=US/Central
 
-CMD ["/app/main", "run"]
+ENTRYPOINT ["/app/main"]

LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
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+
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+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
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+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
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+this License (including any patent licenses granted under the third
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+
+  However, if you cease all violation of this License, then your
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+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
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+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
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+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
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+  A "contributor" is a copyright holder who authorizes use under this
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+
+  A contributor's "essential patent claims" are all patent claims
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+patent license under the contributor's essential patent claims, to
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+
+  If you convey a covered work, knowingly relying on a patent license,
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+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
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+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
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+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -1 +1,155 @@
-# Gaze Indexer Network
+<!-- omit from toc -->
+
+# Gaze Indexer
+
+Gaze Indexer is an open-source and modular indexing client for Bitcoin meta-protocols. It has support for Runes out of the box, with **Unified Consistent APIs** across fungible token protocols.
+
+Gaze Indexer is built with **modularity** in mind, allowing users to run all modules in one monolithic instance with a single command, or as a distributed cluster of micro-services.
+
+Gaze Indexer serves as a foundation for building ANY meta-protocol indexers, with efficient data fetching, reorg detection, and database migration tool.
+This allows developers to focus on what **truly** matters: Meta-protocol indexing logic. New meta-protocols can be easily added by implementing new modules.
+
+- [Modules](#modules)
+  - [1. Runes](#1-runes)
+- [Installation](#installation)
+  - [Prerequisites](#prerequisites)
+    - [1. Hardware Requirements](#1-hardware-requirements)
+    - [2. Prepare Bitcoin Core RPC server.](#2-prepare-bitcoin-core-rpc-server)
+    - [3. Prepare database.](#3-prepare-database)
+    - [4. Prepare `config.yaml` file.](#4-prepare-configyaml-file)
+  - [Install with Docker (recommended)](#install-with-docker-recommended)
+  - [Install from source](#install-from-source)
+
+## Modules
+
+### 1. Runes
+
+The Runes Indexer is our first meta-protocol indexer. It indexes Runes states, transactions, runestones, and balances using Bitcoin transactions.
+It comes with a set of APIs for querying historical Runes data. See our [API Reference](https://api-docs.gaze.network) for full details.
+
+## Installation
+
+### Prerequisites
+
+#### 1. Hardware Requirements
+
+Each module requires different hardware requirements.
+| Module | CPU       | RAM  |
+| ------ | --------- | ---- |
+| Runes  | 0.5 cores | 1 GB |
+
+#### 2. Prepare Bitcoin Core RPC server.
+
+Gaze Indexer needs to fetch transaction data from a Bitcoin Core RPC, either self-hosted or using managed providers like QuickNode.
+To self host a Bitcoin Core, see https://bitcoin.org/en/full-node.
+
+#### 3. Prepare database.
+
+Gaze Indexer has first-class support for PostgreSQL. If you wish to use other databases, you can implement your own database repository that satisfies each module's Data Gateway interface.
+Here is our minimum database disk space requirement for each module.
+| Module | Database Storage (current) | Database Storage (in 1 year) |
+| ------ | -------------------------- | ---------------------------- |
+| Runes  | 10 GB                      | 150 GB                       |
+
+#### 4. Prepare `config.yaml` file.
+
+```yaml
+# config.yaml
+logger:
+  output: TEXT # Output format for logs. current supported formats: "TEXT" | "JSON" | "GCP"
+  debug: false
+
+# Network to run the indexer on. Current supported networks: "mainnet" | "testnet"
+network: mainnet
+
+# Bitcoin Core RPC configuration options.
+bitcoin_node:
+  host: "" # [Required] Host of Bitcoin Core RPC (without https://)
+  user: "" # Username to authenticate with Bitcoin Core RPC
+  pass: "" # Password to authenticate with Bitcoin Core RPC
+  disable_tls: false # Set to true to disable tls
+
+# Block reporting configuration options. See Block Reporting section for more details.
+reporting:
+  disabled: false # Set to true to disable block reporting to Gaze Network. Default is false.
+  base_url: "https://indexer.api.gaze.network" # Defaults to "https://indexer.api.gaze.network" if left empty
+  name: "" # [Required if not disabled] Name of this indexer to show on the Gaze Network dashboard
+  website_url: "" # Public website URL to show on the dashboard. Can be left empty.
+  indexer_api_url: "" # Public url to access this indexer's API. Can be left empty if you want to keep your indexer private.
+
+# HTTP server configuration options.
+http_server:
+  port: 8080 # Port to run the HTTP server on for modules with HTTP API handlers.
+
+# Meta-protocol modules configuration options.
+modules:
+  # Configuration options for Runes module. Can be removed if not used.
+  runes:
+    database: "postgres" # Database to store Runes data. current supported databases: "postgres"
+    datasource: "bitcoin-node" # Data source to be used for Bitcoin data. current supported data sources: "bitcoin-node".
+    api_handlers: # API handlers to enable. current supported handlers: "http"
+      - http
+    postgres:
+      host: "localhost"
+      port: 5432
+      user: "postgres"
+      password: "password"
+      db_name: "postgres"
+      # url: "postgres://postgres:password@localhost:5432/postgres?sslmode=prefer" # [Optional] This will override other database credentials above.
+```
+
+### Install with Docker (recommended)
+
+We will be using `docker-compose` for our installation guide. Make sure the `docker-compose.yaml` file is in the same directory as the `config.yaml` file.
+
+```yaml
+# docker-compose.yaml
+services:
+  gaze-indexer:
+    image: ghcr.io/gaze-network/gaze-indexer:v0.2.1
+    container_name: gaze-indexer
+    restart: unless-stopped
+    ports:
+      - 8080:8080 # Expose HTTP server port to host
+    volumes:
+      - "./config.yaml:/app/config.yaml" # mount config.yaml file to the container as "/app/config.yaml"
+    command: ["/app/main", "run", "--modules", "runes"] # Put module flags after "run" commands to select which modules to run.
+```
+
+### Install from source
+
+1. Install `go` version 1.22 or higher. See Go installation guide [here](https://go.dev/doc/install).
+2. Clone this repository.
+
+```bash
+git clone https://github.com/gaze-network/gaze-indexer.git
+cd gaze-indexer
+```
+
+3. Build the main binary.
+
+```bash
+# Get dependencies
+go mod download
+
+# Build the main binary
+go build -o gaze main.go
+```
+
+4. Run database migrations with the `migrate` command and module flags.
+
+```bash
+./gaze migrate up --runes --database postgres://postgres:password@localhost:5432/postgres
+```
+
+5. Start the indexer with the `run` command and module flags.
+
+```bash
+./gaze run --modules runes
+```
+
+If `config.yaml` is not located at `./app/config.yaml`, use the `--config` flag to specify the path to the `config.yaml` file.
+
+```bash
+./gaze run --modules runes --config /path/to/config.yaml
+```

cmd/cmd.go

@@ -14,14 +14,14 @@ var (
 	// root command
 	cmd = &cobra.Command{
 		Use:  "gaze",
-		Long: `Gaze in a Bitcoin meta-protocol indexer`,
+		Long: `Description of gaze indexer`,
 	}
 
-	// sub-commandsf
+	// sub-commands
 	cmds = []*cobra.Command{
 		NewVersionCommand(),
 		NewRunCommand(),
-		NewGenerateKeypairCommand(),
+		NewMigrateCommand(),
 	}
 )
 
@@ -44,7 +44,7 @@ func Execute(ctx context.Context) {
 
 		// Initialize logger
 		if err := logger.Init(config.Logger); err != nil {
-			logger.Panic("Failed to initialize logger: %v", slogx.Error(err), slog.Any("config", config.Logger))
+			logger.PanicContext(ctx, "Something went wrong, can't init logger", slogx.Error(err), slog.Any("config", config.Logger))
 		}
 	})
 
@@ -53,7 +53,7 @@ func Execute(ctx context.Context) {
 
 	// Execute command
 	if err := cmd.ExecuteContext(ctx); err != nil {
-		// use cobra to log error message by default
-		logger.Debug("Failed to execute root command", slogx.Error(err))
+		// Cobra will print the error message by default
+		logger.DebugContext(ctx, "Error executing command", slogx.Error(err))
 	}
 }

cmd/cmd_generate_keypair.go

@@ -1,100 +0,0 @@
-package cmd
-
-import (
-	"crypto/rand"
-	"encoding/hex"
-	"fmt"
-	"os"
-	"path"
-
-	"github.com/btcsuite/btcd/btcec/v2"
-	"github.com/btcsuite/btcd/chaincfg"
-	"github.com/cockroachdb/errors"
-	"github.com/gaze-network/indexer-network/common/errs"
-	"github.com/gaze-network/indexer-network/pkg/crypto"
-	"github.com/spf13/cobra"
-)
-
-type generateKeypairCmdOptions struct {
-	Path string
-}
-
-func NewGenerateKeypairCommand() *cobra.Command {
-	opts := &generateKeypairCmdOptions{}
-
-	cmd := &cobra.Command{
-		Use:   "generate-keypair",
-		Short: "Generate new public/private keypair for encryption and signature generation",
-		RunE: func(cmd *cobra.Command, args []string) error {
-			return generateKeypairHandler(opts, cmd, args)
-		},
-	}
-
-	flags := cmd.Flags()
-	flags.StringVar(&opts.Path, "path", "/data/keys", `Path to save to key pair file`)
-
-	return cmd
-}
-
-func generateKeypairHandler(opts *generateKeypairCmdOptions, _ *cobra.Command, _ []string) error {
-	fmt.Printf("Generating key pair\n")
-	privKeyBytes := make([]byte, 32)
-
-	_, err := rand.Read(privKeyBytes)
-	if err != nil {
-		return errors.Wrap(errs.SomethingWentWrong, "random bytes")
-	}
-	_, pubKey := btcec.PrivKeyFromBytes(privKeyBytes)
-	serializedPubKey := pubKey.SerializeCompressed()
-
-	// fmt.Println(hex.EncodeToString(privKeyBytes))
-
-	fmt.Printf("Public key: %s\n", hex.EncodeToString(serializedPubKey))
-	err = os.MkdirAll(opts.Path, 0o755)
-	if err != nil {
-		return errors.Wrap(errs.SomethingWentWrong, "create directory")
-	}
-
-	privateKeyPath := path.Join(opts.Path, "priv.key")
-
-	_, err = os.Stat(privateKeyPath)
-	if err == nil {
-		fmt.Printf("Existing private key found at %s\n[WARNING] THE EXISTING PRIVATE KEY WILL BE LOST\nType [replace] to replace existing private key: ", privateKeyPath)
-		var ans string
-		fmt.Scanln(&ans)
-		if ans != "replace" {
-			fmt.Printf("Keypair generation aborted\n")
-			return nil
-		}
-	}
-
-	err = os.WriteFile(privateKeyPath, []byte(hex.EncodeToString(privKeyBytes)), 0o644)
-	if err != nil {
-		return errors.Wrap(err, "write private key file")
-	}
-	fmt.Printf("Private key saved at %s\n", privateKeyPath)
-
-	wifKeyPath := path.Join(opts.Path, "priv_wif_mainnet.key")
-	client, err := crypto.New(hex.EncodeToString(privKeyBytes))
-	if err != nil {
-		return errors.Wrap(err, "new crypto client")
-	}
-	wifKey, err := client.WIF(&chaincfg.MainNetParams)
-	if err != nil {
-		return errors.Wrap(err, "get WIF key")
-	}
-
-	err = os.WriteFile(wifKeyPath, []byte(wifKey), 0o644)
-	if err != nil {
-		return errors.Wrap(err, "write WIF private key file")
-	}
-	fmt.Printf("WIF private key saved at %s\n", wifKeyPath)
-
-	publicKeyPath := path.Join(opts.Path, "pub.key")
-	err = os.WriteFile(publicKeyPath, []byte(hex.EncodeToString(serializedPubKey)), 0o644)
-	if err != nil {
-		return errors.Wrap(errs.SomethingWentWrong, "write public key file")
-	}
-	fmt.Printf("Public key saved at %s\n", publicKeyPath)
-	return nil
-}

cmd/cmd_migrate.go

@@ -0,0 +1,20 @@
+package cmd
+
+import (
+	"github.com/gaze-network/indexer-network/cmd/migrate"
+	_ "github.com/golang-migrate/migrate/v4/database/postgres"
+	_ "github.com/golang-migrate/migrate/v4/source/file"
+	"github.com/spf13/cobra"
+)
+
+func NewMigrateCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "migrate",
+		Short: "Migrate database schema",
+	}
+	cmd.AddCommand(
+		migrate.NewMigrateUpCommand(),
+		migrate.NewMigrateDownCommand(),
+	)
+	return cmd
+}

cmd/cmd_run.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"log/slog"
+	"net/http"
 	"os"
 	"os/signal"
 	"runtime"
@@ -14,299 +15,242 @@ import (
 	"github.com/btcsuite/btcd/rpcclient"
 	"github.com/cockroachdb/errors"
 	"github.com/gaze-network/indexer-network/common/errs"
-	"github.com/gaze-network/indexer-network/core/datasources"
-	"github.com/gaze-network/indexer-network/core/indexers"
+	"github.com/gaze-network/indexer-network/core/indexer"
 	"github.com/gaze-network/indexer-network/internal/config"
-	"github.com/gaze-network/indexer-network/internal/postgres"
-	"github.com/gaze-network/indexer-network/modules/bitcoin"
-	"github.com/gaze-network/indexer-network/modules/bitcoin/btcclient"
-	btcdatagateway "github.com/gaze-network/indexer-network/modules/bitcoin/datagateway"
-	btcpostgres "github.com/gaze-network/indexer-network/modules/bitcoin/repository/postgres"
+	"github.com/gaze-network/indexer-network/modules/brc20"
 	"github.com/gaze-network/indexer-network/modules/runes"
-	runesapi "github.com/gaze-network/indexer-network/modules/runes/api"
-	runesdatagateway "github.com/gaze-network/indexer-network/modules/runes/datagateway"
-	runespostgres "github.com/gaze-network/indexer-network/modules/runes/repository/postgres"
-	runesusecase "github.com/gaze-network/indexer-network/modules/runes/usecase"
+	"github.com/gaze-network/indexer-network/pkg/automaxprocs"
 	"github.com/gaze-network/indexer-network/pkg/errorhandler"
 	"github.com/gaze-network/indexer-network/pkg/logger"
 	"github.com/gaze-network/indexer-network/pkg/logger/slogx"
-	"github.com/gaze-network/indexer-network/pkg/reportingclientv2"
+	"github.com/gaze-network/indexer-network/pkg/middleware/requestcontext"
+	"github.com/gaze-network/indexer-network/pkg/middleware/requestlogger"
+	"github.com/gaze-network/indexer-network/pkg/reportingclient"
 	"github.com/gofiber/fiber/v2"
 	"github.com/gofiber/fiber/v2/middleware/compress"
+	"github.com/gofiber/fiber/v2/middleware/cors"
+	"github.com/gofiber/fiber/v2/middleware/favicon"
 	fiberrecover "github.com/gofiber/fiber/v2/middleware/recover"
+	"github.com/gofiber/fiber/v2/middleware/requestid"
+	"github.com/samber/do/v2"
 	"github.com/samber/lo"
 	"github.com/spf13/cobra"
-	"golang.org/x/sync/errgroup"
 )
 
-type runCmdOptions struct {
-	APIOnly bool
-	Bitcoin bool
-	Runes   bool
-}
+// Register Modules
+var Modules = do.Package(
+	do.LazyNamed("runes", runes.New),
+	do.LazyNamed("brc20", brc20.New),
+)
 
 func NewRunCommand() *cobra.Command {
-	opts := &runCmdOptions{}
-
 	// Create command
 	runCmd := &cobra.Command{
 		Use:   "run",
 		Short: "Start indexer-network service",
 		RunE: func(cmd *cobra.Command, args []string) error {
-			return runHandler(opts, cmd, args)
+			if err := automaxprocs.Init(); err != nil {
+				logger.Error("Failed to set GOMAXPROCS", slogx.Error(err))
+			}
+			return runHandler(cmd, args)
 		},
 	}
 
-	// TODO: separate flags and bind flags to each module cmd package.
-
 	// Add local flags
 	flags := runCmd.Flags()
-	flags.BoolVar(&opts.APIOnly, "api-only", false, "Run only API server")
-	flags.BoolVar(&opts.Bitcoin, "bitcoin", false, "Enable Bitcoin indexer module")
-	flags.String("bitcoin-db", "postgres", `Database to store bitcoin data. current supported databases: "postgres"`)
-	flags.BoolVar(&opts.Runes, "runes", false, "Enable Runes indexer module")
-	flags.String("runes-db", "postgres", `Database to store runes data. current supported databases: "postgres"`)
-	flags.String("runes-datasource", "bitcoin-node", `Datasource to fetch bitcoin data for processing Meta-Protocol data. current supported datasources: "bitcoin-node" | "database"`)
+	flags.Bool("api-only", false, "Run only API server")
+	flags.String("modules", "", "Enable specific modules to run. E.g. `runes,brc20`")
 
 	// Bind flags to configuration
-	config.BindPFlag("modules.bitcoin.database", flags.Lookup("bitcoin-db"))
-	config.BindPFlag("modules.runes.database", flags.Lookup("runes-db"))
-	config.BindPFlag("modules.runes.datasource", flags.Lookup("runes-datasource"))
+	config.BindPFlag("api_only", flags.Lookup("api-only"))
+	config.BindPFlag("enable_modules", flags.Lookup("modules"))
 
 	return runCmd
 }
 
-type HttpHandler interface {
-	Mount(router fiber.Router) error
-}
+const (
+	shutdownTimeout = 60 * time.Second
+)
 
-func runHandler(opts *runCmdOptions, cmd *cobra.Command, _ []string) error {
+func runHandler(cmd *cobra.Command, _ []string) error {
 	conf := config.Load()
 
-	// Initialize context
+	// Validate inputs and configurations
+	{
+		if !conf.Network.IsSupported() {
+			return errors.Wrapf(errs.Unsupported, "%q network is not supported", conf.Network.String())
+		}
+	}
+
+	// Initialize application process context
 	ctx, stop := signal.NotifyContext(cmd.Context(), os.Interrupt, syscall.SIGINT, syscall.SIGTERM)
 	defer stop()
 
-	// Add logger context
-	ctx = logger.WithContext(ctx, slogx.Stringer("network", conf.Network))
+	injector := do.New(Modules)
+	do.ProvideValue(injector, conf)
+	do.ProvideValue(injector, ctx)
 
-	// Load private key
-	privKeyPath := conf.NodeKey.Path
-	if privKeyPath == "" {
-		privKeyPath = "/data/keys/priv.key"
-	}
-	privKeyByte, err := os.ReadFile(privKeyPath)
-	if err != nil {
-		logger.PanicContext(ctx, "Failed to read private key file", slogx.Error(err))
-	}
+	// Initialize Bitcoin RPC client
+	do.Provide(injector, func(i do.Injector) (*rpcclient.Client, error) {
+		conf := do.MustInvoke[config.Config](i)
 
-	// Initialize Bitcoin Core RPC Client
-	client, err := rpcclient.New(&rpcclient.ConnConfig{
-		Host:         conf.BitcoinNode.Host,
-		User:         conf.BitcoinNode.User,
-		Pass:         conf.BitcoinNode.Pass,
-		DisableTLS:   conf.BitcoinNode.DisableTLS,
-		HTTPPostMode: true,
-	}, nil)
-	if err != nil {
-		logger.PanicContext(ctx, "Failed to create Bitcoin Core RPC Client", slogx.Error(err))
-	}
-	defer client.Shutdown()
-
-	logger.InfoContext(ctx, "Connecting to Bitcoin Core RPC Server...", slogx.String("host", conf.BitcoinNode.Host))
-	if err := client.Ping(); err != nil {
-		logger.PanicContext(ctx, "Failed to ping Bitcoin Core RPC Server", slogx.Error(err))
-	}
-	logger.InfoContext(ctx, "Connected to Bitcoin Core RPC Server")
-
-	// Validate network
-	if !conf.Network.IsSupported() {
-		return errors.Wrapf(errs.Unsupported, "%q network is not supported", conf.Network.String())
-	}
-
-	// TODO: create module command package.
-	// each module should have its own command package and main package will routing the command to the module command package.
-
-	// TODO: refactor module name to specific type instead of string?
-	httpHandlers := make(map[string]HttpHandler, 0)
-
-	// use gracefulEG to coordinate graceful shutdown after context is done. (e.g. shut down http server, shutdown logic of each module, etc.)
-	gracefulEG, gctx := errgroup.WithContext(context.Background())
-
-	var reportingClient *reportingclientv2.ReportingClient
-	if !conf.Reporting.Disabled {
-		reportingClient, err = reportingclientv2.New(conf.Reporting, string(privKeyByte)) // TODO: read private key from file
+		client, err := rpcclient.New(&rpcclient.ConnConfig{
+			Host:         conf.BitcoinNode.Host,
+			User:         conf.BitcoinNode.User,
+			Pass:         conf.BitcoinNode.Pass,
+			DisableTLS:   conf.BitcoinNode.DisableTLS,
+			HTTPPostMode: true,
+		}, nil)
 		if err != nil {
-			logger.PanicContext(ctx, "Failed to create reporting client", slogx.Error(err))
+			return nil, errors.Wrap(err, "invalid Bitcoin node configuration")
 		}
-	}
 
-	// Initialize Bitcoin Indexer
-	if opts.Bitcoin {
-		var (
-			btcDB         btcdatagateway.BitcoinDataGateway
-			indexerInfoDB btcdatagateway.IndexerInformationDataGateway
-		)
-		switch strings.ToLower(conf.Modules.Bitcoin.Database) {
-		case "postgresql", "postgres", "pg":
-			pg, err := postgres.NewPool(ctx, conf.Modules.Bitcoin.Postgres)
-			if err != nil {
-				logger.PanicContext(ctx, "Failed to create Postgres connection pool", slogx.Error(err))
+		// Check Bitcoin RPC connection
+		{
+			start := time.Now()
+			logger.InfoContext(ctx, "Connecting to Bitcoin Core RPC Server...", slogx.String("host", conf.BitcoinNode.Host))
+			if err := client.Ping(); err != nil {
+				return nil, errors.Wrapf(err, "can't connect to Bitcoin Core RPC Server %q", conf.BitcoinNode.Host)
 			}
-			defer pg.Close()
-			repo := btcpostgres.NewRepository(pg)
-			btcDB = repo
-			indexerInfoDB = repo
-		default:
-			return errors.Wrapf(errs.Unsupported, "%q database is not supported", conf.Modules.Bitcoin.Database)
+			logger.InfoContext(ctx, "Connected to Bitcoin Core RPC Server", slog.Duration("latency", time.Since(start)))
 		}
-		if !opts.APIOnly {
-			bitcoinProcessor := bitcoin.NewProcessor(conf, btcDB, indexerInfoDB)
-			bitcoinNodeDatasource := datasources.NewBitcoinNode(client)
-			bitcoinIndexer := indexers.NewBitcoinIndexer(bitcoinProcessor, bitcoinNodeDatasource)
 
-			// Verify states before running Indexer
-			if err := bitcoinProcessor.VerifyStates(ctx); err != nil {
-				return errors.WithStack(err)
+		return client, nil
+	})
+
+	// Initialize reporting client
+	do.Provide(injector, func(i do.Injector) (*reportingclient.ReportingClient, error) {
+		conf := do.MustInvoke[config.Config](i)
+		if conf.Reporting.Disabled {
+			return nil, nil
+		}
+
+		reportingClient, err := reportingclient.New(conf.Reporting)
+		if err != nil {
+			if errors.Is(err, errs.InvalidArgument) {
+				return nil, errors.Wrap(err, "invalid reporting configuration")
 			}
-
-			// Run Indexer
-			go func() {
-				logger.InfoContext(ctx, "Starting Bitcoin Indexer")
-				if err := bitcoinIndexer.Run(ctx); err != nil {
-					logger.ErrorContext(ctx, "Failed to run Bitcoin Indexer", slogx.Error(err))
-				}
-
-				// stop main process if Bitcoin Indexer failed
-				logger.InfoContext(ctx, "Bitcoin Indexer stopped. Stopping main process...")
-				stop()
-			}()
+			return nil, errors.Wrap(err, "can't create reporting client")
 		}
-	}
+		return reportingClient, nil
+	})
 
-	// Initialize Runes Indexer
-	if opts.Runes {
-		var runesDg runesdatagateway.RunesDataGateway
-		var indexerInfoDg runesdatagateway.IndexerInfoDataGateway
-		switch strings.ToLower(conf.Modules.Runes.Database) {
-		case "postgresql", "postgres", "pg":
-			pg, err := postgres.NewPool(ctx, conf.Modules.Runes.Postgres)
-			if err != nil {
-				logger.PanicContext(ctx, "Failed to create Postgres connection pool", slogx.Error(err))
-			}
-			defer pg.Close()
-			runesRepo := runespostgres.NewRepository(pg)
-			runesDg = runesRepo
-			indexerInfoDg = runesRepo
-		default:
-			logger.PanicContext(ctx, "Unsupported database", slogx.String("database", conf.Modules.Runes.Database))
-		}
-		var bitcoinDatasource indexers.BitcoinDatasource
-		var bitcoinClient btcclient.Contract
-		switch strings.ToLower(conf.Modules.Runes.Datasource) {
-		case "bitcoin-node":
-			bitcoinNodeDatasource := datasources.NewBitcoinNode(client)
-			bitcoinDatasource = bitcoinNodeDatasource
-			bitcoinClient = bitcoinNodeDatasource
-		case "database":
-			pg, err := postgres.NewPool(ctx, conf.Modules.Runes.Postgres)
-			if err != nil {
-				logger.PanicContext(ctx, "Failed to create Postgres connection pool", slogx.Error(err))
-			}
-			defer pg.Close()
-			btcRepo := btcpostgres.NewRepository(pg)
-			btcClientDB := btcclient.NewClientDatabase(btcRepo)
-			bitcoinDatasource = btcClientDB
-			bitcoinClient = btcClientDB
-		default:
-			return errors.Wrapf(errs.Unsupported, "%q datasource is not supported", conf.Modules.Runes.Datasource)
-		}
-		if !opts.APIOnly {
-			runesProcessor := runes.NewProcessor(runesDg, indexerInfoDg, bitcoinClient, bitcoinDatasource, conf.Network, reportingClient)
-			runesIndexer := indexers.NewBitcoinIndexer(runesProcessor, bitcoinDatasource)
-
-			if err := runesProcessor.VerifyStates(ctx); err != nil {
-				return errors.WithStack(err)
-			}
-
-			// Run Indexer
-			go func() {
-				logger.InfoContext(ctx, "Started Runes Indexer")
-				if err := runesIndexer.Run(ctx); err != nil {
-					logger.ErrorContext(ctx, "Failed to run Runes Indexer", slogx.Error(err))
-				}
-
-				// stop main process if Runes Indexer failed
-				logger.InfoContext(ctx, "Runes Indexer stopped. Stopping main process...")
-				stop()
-			}()
-		}
-
-		// Mount API
-		apiHandlers := lo.Uniq(conf.Modules.Runes.APIHandlers)
-		for _, handler := range apiHandlers {
-			switch handler { // TODO: support more handlers (e.g. gRPC)
-			case "http":
-				runesUsecase := runesusecase.New(runesDg, bitcoinClient)
-				runesHTTPHandler := runesapi.NewHTTPHandler(conf.Network, runesUsecase)
-				httpHandlers["runes"] = runesHTTPHandler
-			default:
-				logger.PanicContext(ctx, "Unsupported API handler", slogx.String("handler", handler))
-			}
-		}
-	}
-
-	// Wait for interrupt signal to gracefully stop the server with
-	// Setup HTTP server if there are any HTTP handlers
-	if len(httpHandlers) > 0 {
+	// Initialize HTTP server
+	do.Provide(injector, func(i do.Injector) (*fiber.App, error) {
 		app := fiber.New(fiber.Config{
-			AppName:      "gaze",
+			AppName:      "Gaze Indexer",
 			ErrorHandler: errorhandler.NewHTTPErrorHandler(),
 		})
 		app.
+			Use(favicon.New()).
+			Use(cors.New()).
+			Use(requestid.New()).
+			Use(requestcontext.New(
+				requestcontext.WithRequestId(),
+				requestcontext.WithClientIP(conf.HTTPServer.RequestIP),
+			)).
+			Use(requestlogger.New(conf.HTTPServer.Logger)).
 			Use(fiberrecover.New(fiberrecover.Config{
 				EnableStackTrace: true,
 				StackTraceHandler: func(c *fiber.Ctx, e interface{}) {
 					buf := make([]byte, 1024) // bufLen = 1024
 					buf = buf[:runtime.Stack(buf, false)]
-					logger.ErrorContext(c.UserContext(), "panic in http handler", slogx.Any("panic", e), slog.String("stacktrace", string(buf)))
+					logger.ErrorContext(c.UserContext(), "Something went wrong, panic in http handler", slogx.Any("panic", e), slog.String("stacktrace", string(buf)))
 				},
 			})).
 			Use(compress.New(compress.Config{
 				Level: compress.LevelDefault,
 			}))
 
-		// mount http handlers from each http-enabled module
-		for module, handler := range httpHandlers {
-			if err := handler.Mount(app); err != nil {
-				logger.PanicContext(ctx, "Failed to mount HTTP handler", slogx.Error(err), slogx.String("module", module))
-			}
-			logger.InfoContext(ctx, "Mounted HTTP handler", slogx.String("module", module))
-		}
-		go func() {
-			logger.InfoContext(ctx, "Started HTTP server", slog.Int("port", conf.HTTPServer.Port))
-			if err := app.Listen(fmt.Sprintf(":%d", conf.HTTPServer.Port)); err != nil {
-				logger.PanicContext(ctx, "Failed to start HTTP server", slogx.Error(err))
-			}
-		}()
-		// handle graceful shutdown
-		gracefulEG.Go(func() error {
-			<-ctx.Done()
-			logger.InfoContext(gctx, "Stopping HTTP server...")
-			if err := app.ShutdownWithTimeout(60 * time.Second); err != nil {
-				logger.ErrorContext(gctx, "Error during shutdown HTTP server", slogx.Error(err))
-			}
-			logger.InfoContext(gctx, "HTTP server stopped gracefully")
-			return nil
+		// Health check
+		app.Get("/", func(c *fiber.Ctx) error {
+			return errors.WithStack(c.SendStatus(http.StatusOK))
 		})
+
+		return app, nil
+	})
+
+	// Initialize worker context to separate worker's lifecycle from main process
+	ctxWorker, stopWorker := context.WithCancel(context.Background())
+	defer stopWorker()
+
+	// Add logger context
+	ctxWorker = logger.WithContext(ctxWorker, slogx.Stringer("network", conf.Network))
+
+	// Run modules
+	{
+		modules := lo.Uniq(conf.EnableModules)
+		modules = lo.Map(modules, func(item string, _ int) string { return strings.TrimSpace(item) })
+		modules = lo.Filter(modules, func(item string, _ int) bool { return item != "" })
+		for _, module := range modules {
+			ctx := logger.WithContext(ctxWorker, slogx.String("module", module))
+
+			indexer, err := do.InvokeNamed[indexer.IndexerWorker](injector, module)
+			if err != nil {
+				if errors.Is(err, do.ErrServiceNotFound) {
+					return errors.Errorf("Module %q is not supported", module)
+				}
+				return errors.Wrapf(err, "can't init module %q", module)
+			}
+
+			// Run Indexer
+			if !conf.APIOnly {
+				go func() {
+					// stop main process if indexer stopped
+					defer stop()
+
+					logger.InfoContext(ctx, "Starting Gaze Indexer")
+					if err := indexer.Run(ctx); err != nil {
+						logger.PanicContext(ctx, "Something went wrong, error during running indexer", slogx.Error(err))
+					}
+				}()
+			}
+		}
 	}
 
+	// Run API server
+	httpServer := do.MustInvoke[*fiber.App](injector)
+	go func() {
+		// stop main process if API stopped
+		defer stop()
+
+		logger.InfoContext(ctx, "Started HTTP server", slog.Int("port", conf.HTTPServer.Port))
+		if err := httpServer.Listen(fmt.Sprintf(":%d", conf.HTTPServer.Port)); err != nil {
+			logger.PanicContext(ctx, "Something went wrong, error during running HTTP server", slogx.Error(err))
+		}
+	}()
+
+	// Stop application if worker context is done
+	go func() {
+		<-ctxWorker.Done()
+		defer stop()
+
+		logger.InfoContext(ctx, "Gaze Indexer Worker is stopped. Stopping application...")
+	}()
+
+	logger.InfoContext(ctxWorker, "Gaze Indexer started")
+
+	// Wait for interrupt signal to gracefully stop the server
 	<-ctx.Done()
-	// wait until all graceful shutdown goroutines are done before returning
-	if err := gracefulEG.Wait(); err != nil {
-		logger.ErrorContext(ctx, "Failed to shutdown gracefully", slogx.Error(err))
-	} else {
-		logger.InfoContext(ctx, "Successfully shut down gracefully")
+
+	// Force shutdown if timeout exceeded or got signal again
+	go func() {
+		defer os.Exit(1)
+
+		ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGINT, syscall.SIGTERM)
+		defer stop()
+
+		select {
+		case <-ctx.Done():
+			logger.FatalContext(ctx, "Received exit signal again. Force shutdown...")
+		case <-time.After(shutdownTimeout + 15*time.Second):
+			logger.FatalContext(ctx, "Shutdown timeout exceeded. Force shutdown...")
+		}
+	}()
+
+	if err := injector.Shutdown(); err != nil {
+		logger.PanicContext(ctx, "Failed while gracefully shutting down", slogx.Error(err))
 	}
+
 	return nil
 }

cmd/cmd_version.go

@@ -6,15 +6,13 @@ import (
 	"github.com/cockroachdb/errors"
 	"github.com/gaze-network/indexer-network/common/errs"
 	"github.com/gaze-network/indexer-network/core/constants"
-	"github.com/gaze-network/indexer-network/modules/bitcoin"
 	"github.com/gaze-network/indexer-network/modules/runes"
 	"github.com/spf13/cobra"
 )
 
 var versions = map[string]string{
-	"":        constants.Version,
-	"bitcoin": bitcoin.Version,
-	"runes":   runes.Version,
+	"":      constants.Version,
+	"runes": runes.Version,
 }
 
 type versionCmdOptions struct {
@@ -33,7 +31,7 @@ func NewVersionCommand() *cobra.Command {
 	}
 
 	flags := cmd.Flags()
-	flags.StringVar(&opts.Modules, "module", "", `Show version of a specific module. E.g. "bitcoin" | "runes"`)
+	flags.StringVar(&opts.Modules, "module", "", `Show version of a specific module. E.g. "runes"`)
 
 	return cmd
 }

cmd/migrate/cmd_down.go

@@ -0,0 +1,132 @@
+package migrate
+
+import (
+	"fmt"
+	"net/url"
+	"strconv"
+	"strings"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common/errs"
+	"github.com/golang-migrate/migrate/v4"
+	_ "github.com/golang-migrate/migrate/v4/database/postgres"
+	_ "github.com/golang-migrate/migrate/v4/source/file"
+	"github.com/samber/lo"
+	"github.com/spf13/cobra"
+)
+
+type migrateDownCmdOptions struct {
+	DatabaseURL string
+	Modules     string
+	All         bool
+}
+
+type migrateDownCmdArgs struct {
+	N int
+}
+
+func (a *migrateDownCmdArgs) ParseArgs(args []string) error {
+	if len(args) > 0 {
+		// assume args already validated by cobra to be len(args) <= 1
+		n, err := strconv.Atoi(args[0])
+		if err != nil {
+			return errors.Wrap(err, "failed to parse N")
+		}
+		if n < 0 {
+			return errors.New("N must be a positive integer")
+		}
+		a.N = n
+	}
+	return nil
+}
+
+func NewMigrateDownCommand() *cobra.Command {
+	opts := &migrateDownCmdOptions{}
+
+	cmd := &cobra.Command{
+		Use:     "down [N]",
+		Short:   "Apply all or N down migrations",
+		Args:    cobra.MaximumNArgs(1),
+		Example: `gaze migrate down --database "postgres://postgres:postgres@localhost:5432/gaze-indexer?sslmode=disable"`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			// args already validated by cobra
+			var downArgs migrateDownCmdArgs
+			if err := downArgs.ParseArgs(args); err != nil {
+				return errors.Wrap(err, "failed to parse args")
+			}
+			return migrateDownHandler(opts, cmd, downArgs)
+		},
+	}
+
+	flags := cmd.Flags()
+	flags.StringVar(&opts.Modules, "modules", "", "Modules to apply up migrations")
+	flags.StringVar(&opts.DatabaseURL, "database", "", "Database url to run migration on")
+	flags.BoolVar(&opts.All, "all", false, "Confirm apply ALL down migrations without prompt")
+
+	return cmd
+}
+
+func migrateDownHandler(opts *migrateDownCmdOptions, _ *cobra.Command, args migrateDownCmdArgs) error {
+	if opts.DatabaseURL == "" {
+		return errors.New("--database is required")
+	}
+	databaseURL, err := url.Parse(opts.DatabaseURL)
+	if err != nil {
+		return errors.Wrap(err, "failed to parse database URL")
+	}
+	if _, ok := supportedDrivers[databaseURL.Scheme]; !ok {
+		return errors.Errorf("unsupported database driver: %s", databaseURL.Scheme)
+	}
+	// prevent accidental down all migrations
+	if args.N == 0 && !opts.All {
+		input := ""
+		fmt.Print("Are you sure you want to apply all down migrations? (y/N):")
+		fmt.Scanln(&input)
+		if !lo.Contains([]string{"y", "yes"}, strings.ToLower(input)) {
+			return nil
+		}
+	}
+
+	modules := strings.Split(opts.Modules, ",")
+
+	applyDownMigrations := func(module string, sourcePath string, migrationTable string) error {
+		newDatabaseURL := cloneURLWithQuery(databaseURL, url.Values{"x-migrations-table": {migrationTable}})
+		sourceURL := "file://" + sourcePath
+		m, err := migrate.New(sourceURL, newDatabaseURL.String())
+		if err != nil {
+			if strings.Contains(err.Error(), "no such file or directory") {
+				return errors.Wrap(errs.InternalError, "migrations directory not found")
+			}
+			return errors.Wrap(err, "failed to open database")
+		}
+		m.Log = &consoleLogger{
+			prefix: fmt.Sprintf("[%s] ", module),
+		}
+		if args.N == 0 {
+			m.Log.Printf("Applying down migrations...\n")
+			err = m.Down()
+		} else {
+			m.Log.Printf("Applying %d down migrations...\n", args.N)
+			err = m.Steps(-args.N)
+		}
+		if err != nil {
+			if !errors.Is(err, migrate.ErrNoChange) {
+				return errors.Wrapf(err, "failed to apply %s down migrations", module)
+			}
+			m.Log.Printf("No more down migrations to apply\n")
+		}
+		return nil
+	}
+
+	if lo.Contains(modules, "runes") {
+		if err := applyDownMigrations("Runes", runesMigrationSource, "runes_schema_migrations"); err != nil {
+			return errors.WithStack(err)
+		}
+	}
+	if lo.Contains(modules, "brc20") {
+		if err := applyDownMigrations("BRC20", brc20MigrationSource, "brc20_schema_migrations"); err != nil {
+			return errors.WithStack(err)
+		}
+	}
+	return nil
+}

cmd/migrate/cmd_up.go

@@ -0,0 +1,118 @@
+package migrate
+
+import (
+	"fmt"
+	"net/url"
+	"strconv"
+	"strings"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common/errs"
+	"github.com/golang-migrate/migrate/v4"
+	_ "github.com/golang-migrate/migrate/v4/database/postgres"
+	_ "github.com/golang-migrate/migrate/v4/source/file"
+	"github.com/samber/lo"
+	"github.com/spf13/cobra"
+)
+
+type migrateUpCmdOptions struct {
+	DatabaseURL string
+	Modules     string
+}
+
+type migrateUpCmdArgs struct {
+	N int
+}
+
+func (a *migrateUpCmdArgs) ParseArgs(args []string) error {
+	if len(args) > 0 {
+		// assume args already validated by cobra to be len(args) <= 1
+		n, err := strconv.Atoi(args[0])
+		if err != nil {
+			return errors.Wrap(err, "failed to parse N")
+		}
+		a.N = n
+	}
+	return nil
+}
+
+func NewMigrateUpCommand() *cobra.Command {
+	opts := &migrateUpCmdOptions{}
+
+	cmd := &cobra.Command{
+		Use:     "up [N]",
+		Short:   "Apply all or N up migrations",
+		Args:    cobra.MaximumNArgs(1),
+		Example: `gaze migrate up --database "postgres://postgres:postgres@localhost:5432/gaze-indexer?sslmode=disable"`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			// args already validated by cobra
+			var upArgs migrateUpCmdArgs
+			if err := upArgs.ParseArgs(args); err != nil {
+				return errors.Wrap(err, "failed to parse args")
+			}
+			return migrateUpHandler(opts, cmd, upArgs)
+		},
+	}
+
+	flags := cmd.Flags()
+	flags.StringVar(&opts.Modules, "modules", "", "Modules to apply up migrations")
+	flags.StringVar(&opts.DatabaseURL, "database", "", "Database url to run migration on")
+
+	return cmd
+}
+
+func migrateUpHandler(opts *migrateUpCmdOptions, _ *cobra.Command, args migrateUpCmdArgs) error {
+	if opts.DatabaseURL == "" {
+		return errors.New("--database is required")
+	}
+	databaseURL, err := url.Parse(opts.DatabaseURL)
+	if err != nil {
+		return errors.Wrap(err, "failed to parse database URL")
+	}
+	if _, ok := supportedDrivers[databaseURL.Scheme]; !ok {
+		return errors.Errorf("unsupported database driver: %s", databaseURL.Scheme)
+	}
+
+	modules := strings.Split(opts.Modules, ",")
+
+	applyUpMigrations := func(module string, sourcePath string, migrationTable string) error {
+		newDatabaseURL := cloneURLWithQuery(databaseURL, url.Values{"x-migrations-table": {migrationTable}})
+		sourceURL := "file://" + sourcePath
+		m, err := migrate.New(sourceURL, newDatabaseURL.String())
+		if err != nil {
+			if strings.Contains(err.Error(), "no such file or directory") {
+				return errors.Wrap(errs.InternalError, "migrations directory not found")
+			}
+			return errors.Wrap(err, "failed to open database")
+		}
+		m.Log = &consoleLogger{
+			prefix: fmt.Sprintf("[%s] ", module),
+		}
+		if args.N == 0 {
+			m.Log.Printf("Applying up migrations...\n")
+			err = m.Up()
+		} else {
+			m.Log.Printf("Applying %d up migrations...\n", args.N)
+			err = m.Steps(args.N)
+		}
+		if err != nil {
+			if !errors.Is(err, migrate.ErrNoChange) {
+				return errors.Wrapf(err, "failed to apply %s up migrations", module)
+			}
+			m.Log.Printf("Migrations already up-to-date\n")
+		}
+		return nil
+	}
+
+	if lo.Contains(modules, "runes") {
+		if err := applyUpMigrations("Runes", runesMigrationSource, "runes_schema_migrations"); err != nil {
+			return errors.WithStack(err)
+		}
+	}
+	if lo.Contains(modules, "brc20") {
+		if err := applyUpMigrations("BRC20", brc20MigrationSource, "brc20_schema_migrations"); err != nil {
+			return errors.WithStack(err)
+		}
+	}
+	return nil
+}

cmd/migrate/logger.go

@@ -0,0 +1,22 @@
+package migrate
+
+import (
+	"fmt"
+
+	"github.com/golang-migrate/migrate/v4"
+)
+
+var _ migrate.Logger = (*consoleLogger)(nil)
+
+type consoleLogger struct {
+	prefix  string
+	verbose bool
+}
+
+func (l *consoleLogger) Printf(format string, v ...interface{}) {
+	fmt.Printf(l.prefix+format, v...)
+}
+
+func (l *consoleLogger) Verbose() bool {
+	return l.verbose
+}

cmd/migrate/migrate.go

@@ -0,0 +1,25 @@
+package migrate
+
+import "net/url"
+
+const (
+	runesMigrationSource = "modules/runes/database/postgresql/migrations"
+	brc20MigrationSource = "modules/brc20/database/postgresql/migrations"
+)
+
+func cloneURLWithQuery(u *url.URL, newQuery url.Values) *url.URL {
+	clone := *u
+	query := clone.Query()
+	for key, values := range newQuery {
+		for _, value := range values {
+			query.Add(key, value)
+		}
+	}
+	clone.RawQuery = query.Encode()
+	return &clone
+}
+
+var supportedDrivers = map[string]struct{}{
+	"postgres":   {},
+	"postgresql": {},
+}

common/http.go

@@ -0,0 +1,6 @@
+package common
+
+type HttpResponse[T any] struct {
+	Error  *string `json:"error"`
+	Result *T      `json:"result,omitempty"`
+}

config.example.yaml

@@ -1,39 +1,44 @@
 logger:
-  output: text
+  output: TEXT # Output format for logs. current supported formats: "TEXT" | "JSON" | "GCP"
   debug: false
 
-bitcoin_node:
-  host: "bitcoin-mainnet-archive.allthatnode.com"
-  user: "user"
-  pass: "pass"
-  disable_tls: false
-
+# Network to run the indexer on. Current supported networks: "mainnet" | "testnet"
 network: mainnet
 
+# Bitcoin Core RPC configuration options.
+bitcoin_node:
+  host: "" # [Required] Host of Bitcoin Core RPC (without https://)
+  user: "" # Username to authenticate with Bitcoin Core RPC
+  pass: "" # Password to authenticate with Bitcoin Core RPC
+  disable_tls: false # Set to true to disable tls
+
+# Block reporting configuration options. See Block Reporting section for more details.
 reporting:
-  disabled: false
-  base_url: "https://indexer.api.gaze.network" # defaults to "https://indexer.api.gaze.network" if empty
-  name: "local-dev" # name of this instance to show on the dashboard
-  website_url: "" # public website URL to show on the dashboard. Can be left empty.
-  indexer_api_url: "" # public url to access this api. Can be left empty.
+  disabled: false # Set to true to disable block reporting to Gaze Network. Default is false.
+  base_url: "https://indexer.api.gaze.network" # Defaults to "https://indexer.api.gaze.network" if left empty
+  name: "" # [Required if not disabled] Name of this indexer to show on the Gaze Network dashboard
+  website_url: "" # Public website URL to show on the dashboard. Can be left empty.
+  indexer_api_url: "" # Public url to access this indexer's API. Can be left empty if you want to keep your indexer private.
 
-้http_server:
-  port: 8080
+# HTTP server configuration options.
+http_server:
+  port: 8080 # Port to run the HTTP server on for modules with HTTP API handlers.
+  logger:
+    disable: false # disable logger if logger level is `INFO`
+    request_header: false
+    request_query: false
+  requestip: # Client IP extraction configuration options. This is unnecessary if you don't care about the real client IP or if you're not using a reverse proxy.
+    trusted_proxies_ip: # Cloudflare, GCP Public LB. See: server/internal/middleware/requestcontext/PROXY-IP.md
+    trusted_proxies_header: # X-Real-IP, CF-Connecting-IP
+    enable_reject_malformed_request: false # return 403 if request is malformed (invalid IP)
 
+# Meta-protocol modules configuration options.
 modules:
-  bitcoin:
-    database: "postgres" # Database to store bitcoin data. current supported databases: "postgres"
-    postgres:
-      host: "localhost"
-      port: 5432
-      user: "postgres"
-      password: "password"
-      db_name: "postgres"
-      # url: "postgres://postgres:password@localhost:5432/postgres?sslmode=prefer" # [Optional] This will override other database connection configurations
-  runes:
-    database: "postgres" # Database to store Runes data. current supported databases: "postgres"
-    datasource: "bitcoin-node" # Data source to be used. current supported data sources: "bitcoin-node" | "postgres"
-    api_handlers: # API handlers to be used. current supported handlers: "http"
+  # Configuration options for BRC20 module. Can be removed if not used.
+  brc20:
+    database: "postgres" # Database to store BRC20 data. current supported databases: "postgres"
+    datasource: "database" # Data source to be used for Bitcoin data. current supported data sources: "bitcoin-node".
+    api_handlers: # API handlers to enable. current supported handlers: "http"
       - http
     postgres:
       host: "localhost"
@@ -41,4 +46,17 @@ modules:
       user: "postgres"
       password: "password"
       db_name: "postgres"
-      # url: "postgres://postgres:password@localhost:5432/postgres?sslmode=prefer" # [Optional] This will override other database connection configurations
+      # url: "postgres://postgres:password@localhost:5432/postgres?sslmode=prefer" # [Optional] This will override other database credentials above.
+  # Configuration options for Runes module. Can be removed if not used.
+  runes:
+    database: "postgres" # Database to store Runes data. current supported databases: "postgres"
+    datasource: "database" # Data source to be used for Bitcoin data. current supported data sources: "bitcoin-node".
+    api_handlers: # API handlers to enable. current supported handlers: "http"
+      - http
+    postgres:
+      host: "localhost"
+      port: 5432
+      user: "postgres"
+      password: "password"
+      db_name: "postgres"
+      # url: "postgres://postgres:password@localhost:5432/postgres?sslmode=prefer" # [Optional] This will override other database credentials above.

core/constants/constants.go

@@ -1,5 +1,5 @@
 package constants
 
 const (
-	Version = "v0.0.1"
+	Version = "v0.2.1"
 )

core/datasources/bitcoin_node.go

@@ -24,7 +24,7 @@ const (
 )
 
 // Make sure to implement the BitcoinDatasource interface
-var _ Datasource[[]*types.Block] = (*BitcoinNodeDatasource)(nil)
+var _ Datasource[*types.Block] = (*BitcoinNodeDatasource)(nil)
 
 // BitcoinNodeDatasource fetch data from Bitcoin node for Bitcoin Indexer
 type BitcoinNodeDatasource struct {
@@ -39,7 +39,7 @@ func NewBitcoinNode(btcclient *rpcclient.Client) *BitcoinNodeDatasource {
 }
 
 func (p BitcoinNodeDatasource) Name() string {
-	return "BitcoinNode"
+	return "bitcoin_node"
 }
 
 // Fetch polling blocks from Bitcoin node
@@ -83,6 +83,11 @@ func (d *BitcoinNodeDatasource) Fetch(ctx context.Context, from, to int64) ([]*t
 //   - from: block height to start fetching, if -1, it will start from genesis block
 //   - to: block height to stop fetching, if -1, it will fetch until the latest block
 func (d *BitcoinNodeDatasource) FetchAsync(ctx context.Context, from, to int64, ch chan<- []*types.Block) (*subscription.ClientSubscription[[]*types.Block], error) {
+	ctx = logger.WithContext(ctx,
+		slogx.String("package", "datasources"),
+		slogx.String("datasource", d.Name()),
+	)
+
 	from, to, skip, err := d.prepareRange(from, to)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to prepare fetch range")
@@ -138,10 +143,10 @@ func (d *BitcoinNodeDatasource) FetchAsync(ctx context.Context, from, to int64,
 					if errors.Is(err, errs.Closed) {
 						return
 					}
-					logger.WarnContext(ctx, "failed while dispatch block",
-						slogx.Error(err),
+					logger.WarnContext(ctx, "Failed to send bitcoin blocks to subscription client",
 						slogx.Int64("start", data[0].Header.Height),
 						slogx.Int64("end", data[len(data)-1].Header.Height),
+						slogx.Error(err),
 					)
 				}
 			case <-ctx.Done():
@@ -157,6 +162,7 @@ func (d *BitcoinNodeDatasource) FetchAsync(ctx context.Context, from, to int64,
 		done := subscription.Done()
 		chunks := lo.Chunk(blockHeights, blockStreamChunkSize)
 		for _, chunk := range chunks {
+			// TODO: Implement throttling logic to control the rate of fetching blocks (block/sec)
 			chunk := chunk
 			select {
 			case <-done:
@@ -167,12 +173,11 @@ func (d *BitcoinNodeDatasource) FetchAsync(ctx context.Context, from, to int64,
 				stream.Go(func() []*types.Block {
 					startAt := time.Now()
 					defer func() {
-						logger.DebugContext(ctx, "[BitcoinNodeDatasource] Fetched blocks",
+						logger.DebugContext(ctx, "Fetched chunk of blocks from Bitcoin node",
 							slogx.Int("total_blocks", len(chunk)),
 							slogx.Int64("from", chunk[0]),
 							slogx.Int64("to", chunk[len(chunk)-1]),
-							slogx.Stringer("duration", time.Since(startAt)),
-							slogx.Int64("duration_ms", time.Since(startAt).Milliseconds()),
+							slogx.Duration("duration", time.Since(startAt)),
 						)
 					}()
 					// TODO: should concurrent fetch block or not ?
@@ -180,22 +185,21 @@ func (d *BitcoinNodeDatasource) FetchAsync(ctx context.Context, from, to int64,
 					for _, height := range chunk {
 						hash, err := d.btcclient.GetBlockHash(height)
 						if err != nil {
-							logger.ErrorContext(ctx, "failed to get block hash", slogx.Error(err), slogx.Int64("height", height))
+							logger.ErrorContext(ctx, "Can't get block hash from Bitcoin node rpc", slogx.Error(err), slogx.Int64("height", height))
 							if err := subscription.SendError(ctx, errors.Wrapf(err, "failed to get block hash: height: %d", height)); err != nil {
-								logger.ErrorContext(ctx, "failed to send error", slogx.Error(err))
+								logger.WarnContext(ctx, "Failed to send datasource error to subscription client", slogx.Error(err))
 							}
 							return nil
 						}
 
 						block, err := d.btcclient.GetBlock(hash)
 						if err != nil {
-							logger.ErrorContext(ctx, "failed to get block", slogx.Error(err), slogx.Int64("height", height))
+							logger.ErrorContext(ctx, "Can't get block data from Bitcoin node rpc", slogx.Error(err), slogx.Int64("height", height))
 							if err := subscription.SendError(ctx, errors.Wrapf(err, "failed to get block: height: %d, hash: %s", height, hash)); err != nil {
-								logger.ErrorContext(ctx, "failed to send error", slogx.Error(err))
+								logger.WarnContext(ctx, "Failed to send datasource error to subscription client", slogx.Error(err))
 							}
 							return nil
 						}
-						logger.DebugContext(ctx, "[BitcoinNodeDatasource] Fetched block", slogx.Int64("height", height), slogx.String("hash", hash.String()))
 
 						blocks = append(blocks, types.ParseMsgBlock(block, height))
 					}
@@ -288,3 +292,19 @@ func (d *BitcoinNodeDatasource) GetBlockHeader(ctx context.Context, height int64
 
 	return types.ParseMsgBlockHeader(*block, height), nil
 }
+
+// GetTransaction fetch transaction from Bitcoin node
+func (d *BitcoinNodeDatasource) GetTransactionOutputs(ctx context.Context, txHash chainhash.Hash) ([]*types.TxOut, error) {
+	rawTx, err := d.btcclient.GetRawTransaction(&txHash)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to get raw transaction")
+	}
+
+	msgTx := rawTx.MsgTx()
+	txOuts := make([]*types.TxOut, 0, len(msgTx.TxOut))
+	for _, txOut := range msgTx.TxOut {
+		txOuts = append(txOuts, types.ParseTxOut(txOut))
+	}
+
+	return txOuts, nil
+}

core/datasources/datasources.go

@@ -10,7 +10,7 @@ import (
 // Datasource is an interface for indexer data sources.
 type Datasource[T any] interface {
 	Name() string
-	Fetch(ctx context.Context, from, to int64) (T, error)
-	FetchAsync(ctx context.Context, from, to int64, ch chan<- T) (*subscription.ClientSubscription[T], error)
+	Fetch(ctx context.Context, from, to int64) ([]T, error)
+	FetchAsync(ctx context.Context, from, to int64, ch chan<- []T) (*subscription.ClientSubscription[[]T], error)
 	GetBlockHeader(ctx context.Context, height int64) (types.BlockHeader, error)
 }

core/indexer/indexer.go

@@ -0,0 +1,257 @@
+package indexer
+
+import (
+	"context"
+	"log/slog"
+	"sync"
+	"time"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common/errs"
+	"github.com/gaze-network/indexer-network/core/datasources"
+	"github.com/gaze-network/indexer-network/core/types"
+	"github.com/gaze-network/indexer-network/pkg/logger"
+	"github.com/gaze-network/indexer-network/pkg/logger/slogx"
+)
+
+const (
+	maxReorgLookBack = 1000
+
+	// pollingInterval is the default polling interval for the indexer polling worker
+	pollingInterval = 15 * time.Second
+)
+
+// Indexer generic indexer for fetching and processing data
+type Indexer[T Input] struct {
+	Processor    Processor[T]
+	Datasource   datasources.Datasource[T]
+	currentBlock types.BlockHeader
+
+	quitOnce sync.Once
+	quit     chan struct{}
+	done     chan struct{}
+}
+
+// New create new generic indexer
+func New[T Input](processor Processor[T], datasource datasources.Datasource[T]) *Indexer[T] {
+	return &Indexer[T]{
+		Processor:  processor,
+		Datasource: datasource,
+
+		quit: make(chan struct{}),
+		done: make(chan struct{}),
+	}
+}
+
+func (i *Indexer[T]) Shutdown() error {
+	return i.ShutdownWithContext(context.Background())
+}
+
+func (i *Indexer[T]) ShutdownWithTimeout(timeout time.Duration) error {
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+	return i.ShutdownWithContext(ctx)
+}
+
+func (i *Indexer[T]) ShutdownWithContext(ctx context.Context) (err error) {
+	i.quitOnce.Do(func() {
+		close(i.quit)
+		select {
+		case <-i.done:
+		case <-time.After(180 * time.Second):
+			err = errors.Wrap(errs.Timeout, "indexer shutdown timeout")
+		case <-ctx.Done():
+			err = errors.Wrap(ctx.Err(), "indexer shutdown context canceled")
+		}
+	})
+	return
+}
+
+func (i *Indexer[T]) Run(ctx context.Context) (err error) {
+	defer close(i.done)
+
+	ctx = logger.WithContext(ctx,
+		slog.String("package", "indexers"),
+		slog.String("processor", i.Processor.Name()),
+		slog.String("datasource", i.Datasource.Name()),
+	)
+
+	// set to -1 to start from genesis block
+	i.currentBlock, err = i.Processor.CurrentBlock(ctx)
+	if err != nil {
+		if !errors.Is(err, errs.NotFound) {
+			return errors.Wrap(err, "can't init state, failed to get indexer current block")
+		}
+		i.currentBlock.Height = -1
+	}
+
+	ticker := time.NewTicker(pollingInterval)
+	defer ticker.Stop()
+	for {
+		select {
+		case <-i.quit:
+			logger.InfoContext(ctx, "Got quit signal, stopping indexer")
+			if err := i.Processor.Shutdown(ctx); err != nil {
+				logger.ErrorContext(ctx, "Failed to shutdown processor", slogx.Error(err))
+				return errors.Wrap(err, "processor shutdown failed")
+			}
+			return nil
+		case <-ctx.Done():
+			return nil
+		case <-ticker.C:
+			if err := i.process(ctx); err != nil {
+				logger.ErrorContext(ctx, "Indexer failed while processing", slogx.Error(err))
+				return errors.Wrap(err, "process failed")
+			}
+			logger.DebugContext(ctx, "Waiting for next polling interval")
+		}
+	}
+}
+
+func (i *Indexer[T]) process(ctx context.Context) (err error) {
+	// height range to fetch data
+	from, to := i.currentBlock.Height+1, int64(-1)
+
+	logger.InfoContext(ctx, "Start fetching input data", slog.Int64("from", from))
+	ch := make(chan []T)
+	subscription, err := i.Datasource.FetchAsync(ctx, from, to, ch)
+	if err != nil {
+		return errors.Wrap(err, "failed to fetch input data")
+	}
+	defer subscription.Unsubscribe()
+
+	for {
+		select {
+		case <-i.quit:
+			return nil
+		case inputs := <-ch:
+			// empty inputs
+			if len(inputs) == 0 {
+				continue
+			}
+
+			firstInput := inputs[0]
+			firstInputHeader := firstInput.BlockHeader()
+
+			startAt := time.Now()
+			ctx := logger.WithContext(ctx,
+				slogx.Int64("from", firstInputHeader.Height),
+				slogx.Int64("to", inputs[len(inputs)-1].BlockHeader().Height),
+			)
+
+			// validate reorg from first input
+			{
+				remoteBlockHeader := firstInputHeader
+				if !remoteBlockHeader.PrevBlock.IsEqual(&i.currentBlock.Hash) {
+					logger.WarnContext(ctx, "Detected chain reorganization. Searching for fork point...",
+						slogx.String("event", "reorg_detected"),
+						slogx.Stringer("current_hash", i.currentBlock.Hash),
+						slogx.Stringer("expected_hash", remoteBlockHeader.PrevBlock),
+					)
+
+					var (
+						start                  = time.Now()
+						targetHeight           = i.currentBlock.Height - 1
+						beforeReorgBlockHeader = types.BlockHeader{
+							Height: -1,
+						}
+					)
+					for n := 0; n < maxReorgLookBack; n++ {
+						// TODO: concurrent fetch
+						indexedHeader, err := i.Processor.GetIndexedBlock(ctx, targetHeight)
+						if err != nil {
+							return errors.Wrapf(err, "failed to get indexed block, height: %d", targetHeight)
+						}
+
+						remoteHeader, err := i.Datasource.GetBlockHeader(ctx, targetHeight)
+						if err != nil {
+							return errors.Wrapf(err, "failed to get remote block header, height: %d", targetHeight)
+						}
+
+						// Found no reorg block
+						if indexedHeader.Hash.IsEqual(&remoteHeader.Hash) {
+							beforeReorgBlockHeader = remoteHeader
+							break
+						}
+
+						// Walk back to find fork point
+						targetHeight -= 1
+					}
+
+					// Reorg look back limit reached
+					if beforeReorgBlockHeader.Height < 0 {
+						return errors.Wrap(errs.SomethingWentWrong, "reorg look back limit reached")
+					}
+
+					logger.InfoContext(ctx, "Found reorg fork point, starting to revert data...",
+						slogx.String("event", "reorg_forkpoint"),
+						slogx.Int64("since", beforeReorgBlockHeader.Height+1),
+						slogx.Int64("total_blocks", i.currentBlock.Height-beforeReorgBlockHeader.Height),
+						slogx.Duration("search_duration", time.Since(start)),
+					)
+
+					// Revert all data since the reorg block
+					start = time.Now()
+					if err := i.Processor.RevertData(ctx, beforeReorgBlockHeader.Height+1); err != nil {
+						return errors.Wrap(err, "failed to revert data")
+					}
+
+					// Set current block to before reorg block and
+					// end current round to fetch again
+					i.currentBlock = beforeReorgBlockHeader
+					logger.Info("Fixing chain reorganization completed",
+						slogx.Int64("current_block", i.currentBlock.Height),
+						slogx.Duration("duration", time.Since(start)),
+					)
+					return nil
+				}
+			}
+
+			// validate is input is continuous and no reorg
+			prevHeader := i.currentBlock
+			for i, input := range inputs {
+				header := input.BlockHeader()
+				if header.Height != prevHeader.Height+1 {
+					return errors.Wrapf(errs.InternalError, "input is not continuous, input[%d] height: %d, input[%d] height: %d", i-1, prevHeader.Height, i, header.Height)
+				}
+
+				if !header.PrevBlock.IsEqual(&prevHeader.Hash) {
+					logger.WarnContext(ctx, "Chain Reorganization occurred in the middle of batch fetching inputs, need to try to fetch again")
+
+					// end current round
+					return nil
+				}
+				prevHeader = header
+			}
+
+			ctx = logger.WithContext(ctx, slog.Int("total_inputs", len(inputs)))
+
+			// Start processing input
+			logger.InfoContext(ctx, "Processing inputs")
+			if err := i.Processor.Process(ctx, inputs); err != nil {
+				return errors.WithStack(err)
+			}
+
+			// Update current state
+			i.currentBlock = inputs[len(inputs)-1].BlockHeader()
+
+			logger.InfoContext(ctx, "Processed inputs successfully",
+				slogx.String("event", "processed_inputs"),
+				slogx.Int64("current_block", i.currentBlock.Height),
+				slogx.Duration("duration", time.Since(startAt)),
+			)
+		case <-subscription.Done():
+			// end current round
+			if err := ctx.Err(); err != nil {
+				return errors.Wrap(err, "context done")
+			}
+			return nil
+		case <-ctx.Done():
+			return errors.WithStack(ctx.Err())
+		case err := <-subscription.Err():
+			if err != nil {
+				return errors.Wrap(err, "got error while fetch async")
+			}
+		}
+	}
+}

core/indexer/interface.go

@@ -1,20 +1,21 @@
-package indexers
+package indexer
 
 import (
 	"context"
+	"time"
 
 	"github.com/gaze-network/indexer-network/core/types"
 )
 
-type IndexerWorker interface {
-	Run(ctx context.Context) error
+type Input interface {
+	BlockHeader() types.BlockHeader
 }
 
-type Processor[T any] interface {
+type Processor[T Input] interface {
 	Name() string
 
 	// Process processes the input data and indexes it.
-	Process(ctx context.Context, inputs T) error
+	Process(ctx context.Context, inputs []T) error
 
 	// CurrentBlock returns the latest indexed block header.
 	CurrentBlock(ctx context.Context) (types.BlockHeader, error)
@@ -28,4 +29,14 @@ type Processor[T any] interface {
 	// VerifyStates verifies the states of the indexed data and the indexer
 	// to ensure the last shutdown was graceful and no missing data.
 	VerifyStates(ctx context.Context) error
+
+	// Shutdown gracefully stops the processor. Database connections, network calls, leftover states, etc. should be closed and cleaned up here.
+	Shutdown(ctx context.Context) error
+}
+
+type IndexerWorker interface {
+	Shutdown() error
+	ShutdownWithTimeout(timeout time.Duration) error
+	ShutdownWithContext(ctx context.Context) (err error)
+	Run(ctx context.Context) (err error)
 }

core/indexers/bitcoin_indexer.go

@@ -1,209 +0,0 @@
-package indexers
-
-import (
-	"context"
-	"log/slog"
-	"time"
-
-	"github.com/cockroachdb/errors"
-	"github.com/gaze-network/indexer-network/common/errs"
-	"github.com/gaze-network/indexer-network/core/datasources"
-	"github.com/gaze-network/indexer-network/core/types"
-	"github.com/gaze-network/indexer-network/pkg/logger"
-	"github.com/gaze-network/indexer-network/pkg/logger/slogx"
-)
-
-const (
-	maxReorgLookBack = 1000
-)
-
-type (
-	BitcoinProcessor  Processor[[]*types.Block]
-	BitcoinDatasource datasources.Datasource[[]*types.Block]
-)
-
-// Make sure to implement the IndexerWorker interface
-var _ IndexerWorker = (*BitcoinIndexer)(nil)
-
-// BitcoinIndexer is the polling indexer for sync Bitcoin data to the database.
-type BitcoinIndexer struct {
-	Processor    BitcoinProcessor
-	Datasource   BitcoinDatasource
-	currentBlock types.BlockHeader
-}
-
-// NewBitcoinIndexer create new BitcoinIndexer
-func NewBitcoinIndexer(processor BitcoinProcessor, datasource BitcoinDatasource) *BitcoinIndexer {
-	return &BitcoinIndexer{
-		Processor:  processor,
-		Datasource: datasource,
-	}
-}
-
-func (i *BitcoinIndexer) Run(ctx context.Context) (err error) {
-	ctx = logger.WithContext(ctx,
-		slog.String("indexer", "bitcoin"),
-		slog.String("processor", i.Processor.Name()),
-		slog.String("datasource", i.Datasource.Name()),
-	)
-
-	// set to -1 to start from genesis block
-	i.currentBlock, err = i.Processor.CurrentBlock(ctx)
-	if err != nil {
-		if !errors.Is(err, errs.NotFound) {
-			return errors.Wrap(err, "can't init state, failed to get indexer current block")
-		}
-		i.currentBlock.Height = -1
-	}
-
-	// TODO:
-	// - compare db version in constants and database
-	// - compare current network and local indexed network
-	// - update indexer stats
-
-	ticker := time.NewTicker(10 * time.Second)
-	defer ticker.Stop()
-	for {
-		select {
-		case <-ctx.Done():
-			return nil
-		case <-ticker.C:
-			if err := i.process(ctx); err != nil {
-				logger.ErrorContext(ctx, "failed to process", slogx.Error(err))
-				return errors.Wrap(err, "failed to process")
-			}
-		}
-	}
-}
-
-func (i *BitcoinIndexer) process(ctx context.Context) (err error) {
-	ch := make(chan []*types.Block)
-	from, to := i.currentBlock.Height+1, int64(-1)
-	logger.InfoContext(ctx, "Fetching blocks", slog.Int64("from", from), slog.Int64("to", to))
-	subscription, err := i.Datasource.FetchAsync(ctx, from, to, ch)
-	if err != nil {
-		return errors.Wrap(err, "failed to call fetch async")
-	}
-	defer subscription.Unsubscribe()
-
-	for {
-		select {
-		case blocks := <-ch:
-			// empty blocks
-			if len(blocks) == 0 {
-				continue
-			}
-
-			startAt := time.Now()
-			ctx := logger.WithContext(ctx,
-				slog.Int("total_blocks", len(blocks)),
-				slogx.Int64("from", blocks[0].Header.Height),
-				slogx.Int64("to", blocks[len(blocks)-1].Header.Height),
-			)
-
-			// validate reorg from first block
-			{
-				remoteBlockHeader := blocks[0].Header
-				if !remoteBlockHeader.PrevBlock.IsEqual(&i.currentBlock.Hash) {
-					logger.WarnContext(ctx, "Reorg detected",
-						slogx.Stringer("current_hash", i.currentBlock.Hash),
-						slogx.Stringer("expected_hash", remoteBlockHeader.PrevBlock),
-					)
-
-					var (
-						start                  = time.Now()
-						targetHeight           = i.currentBlock.Height - 1
-						beforeReorgBlockHeader = types.BlockHeader{
-							Height: -1,
-						}
-					)
-					for n := 0; n < maxReorgLookBack; n++ {
-						// TODO: concurrent fetch
-						indexedHeader, err := i.Processor.GetIndexedBlock(ctx, targetHeight)
-						if err != nil {
-							return errors.Wrapf(err, "failed to get indexed block, height: %d", targetHeight)
-						}
-
-						remoteHeader, err := i.Datasource.GetBlockHeader(ctx, targetHeight)
-						if err != nil {
-							return errors.Wrapf(err, "failed to get remote block header, height: %d", targetHeight)
-						}
-
-						// Found no reorg block
-						if indexedHeader.Hash.IsEqual(&remoteHeader.Hash) {
-							beforeReorgBlockHeader = remoteHeader
-							break
-						}
-
-						// Walk back to find fork point
-						targetHeight -= 1
-					}
-
-					// Reorg look back limit reached
-					if beforeReorgBlockHeader.Height < 0 {
-						return errors.Wrap(errs.SomethingWentWrong, "reorg look back limit reached")
-					}
-
-					// Revert all data since the reorg block
-					logger.WarnContext(ctx, "reverting reorg data",
-						slogx.Int64("reorg_from", beforeReorgBlockHeader.Height+1),
-						slogx.Int64("total_reorg_blocks", i.currentBlock.Height-beforeReorgBlockHeader.Height),
-						slogx.Stringer("detect_duration", time.Since(start)),
-					)
-					if err := i.Processor.RevertData(ctx, beforeReorgBlockHeader.Height+1); err != nil {
-						return errors.Wrap(err, "failed to revert data")
-					}
-
-					// Set current block to before reorg block and
-					// end current round to fetch again
-					i.currentBlock = beforeReorgBlockHeader
-					logger.Info("Reverted data successfully",
-						slogx.Any("current_block", i.currentBlock),
-						slogx.Stringer("duration", time.Since(start)),
-						slogx.Int64("duration_ms", time.Since(start).Milliseconds()),
-					)
-					return nil
-				}
-			}
-
-			// validate is block is continuous and no reorg
-			for i := 1; i < len(blocks); i++ {
-				if blocks[i].Header.Height != blocks[i-1].Header.Height+1 {
-					return errors.Wrapf(errs.InternalError, "block is not continuous, block[%d] height: %d, block[%d] height: %d", i-1, blocks[i-1].Header.Height, i, blocks[i].Header.Height)
-				}
-
-				if !blocks[i].Header.PrevBlock.IsEqual(&blocks[i-1].Header.Hash) {
-					logger.WarnContext(ctx, "reorg occurred while batch fetching blocks, need to try to fetch again")
-					// end current round
-					return nil
-				}
-			}
-
-			// Start processing blocks
-			logger.InfoContext(ctx, "Processing blocks")
-			if err := i.Processor.Process(ctx, blocks); err != nil {
-				return errors.WithStack(err)
-			}
-
-			// Update current state
-			i.currentBlock = blocks[len(blocks)-1].Header
-
-			logger.InfoContext(ctx, "Processed blocks successfully",
-				slogx.Stringer("duration", time.Since(startAt)),
-				slogx.Int64("duration_ms", time.Since(startAt).Milliseconds()),
-			)
-		case <-subscription.Done():
-			// end current round
-			if err := ctx.Err(); err != nil {
-				return errors.Wrap(err, "context done")
-			}
-			return nil
-		case <-ctx.Done():
-			return errors.WithStack(ctx.Err())
-		case err := <-subscription.Err():
-			if err != nil {
-				return errors.Wrap(err, "got error while fetch async")
-			}
-		}
-	}
-}

core/types/bitcoin_block.go

@@ -38,6 +38,10 @@ type Block struct {
 	Transactions []*Transaction
 }
 
+func (b *Block) BlockHeader() BlockHeader {
+	return b.Header
+}
+
 func ParseMsgBlock(src *wire.MsgBlock, height int64) *Block {
 	hash := src.Header.BlockHash()
 	return &Block{

go.mod

@@ -6,27 +6,32 @@ require (
 	github.com/Cleverse/go-utilities/utils v0.0.0-20240119201306-d71eb577ef11
 	github.com/btcsuite/btcd v0.24.0
 	github.com/btcsuite/btcd/btcutil v1.1.5
+	github.com/btcsuite/btcd/btcutil/psbt v1.1.9
 	github.com/btcsuite/btcd/chaincfg/chainhash v1.1.0
 	github.com/cockroachdb/errors v1.11.1
 	github.com/gaze-network/uint128 v1.3.0
 	github.com/gofiber/fiber/v2 v2.52.4
-	github.com/jackc/pgx v3.6.2+incompatible
+	github.com/golang-migrate/migrate/v4 v4.17.1
+	github.com/hashicorp/golang-lru/v2 v2.0.7
 	github.com/jackc/pgx/v5 v5.5.5
 	github.com/mcosta74/pgx-slog v0.3.0
 	github.com/planxnx/concurrent-stream v0.1.5
+	github.com/samber/do/v2 v2.0.0-beta.7
 	github.com/samber/lo v1.39.0
 	github.com/shopspring/decimal v1.3.1
 	github.com/spf13/cobra v1.8.0
 	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.18.2
-	github.com/stretchr/testify v1.8.4
+	github.com/stretchr/testify v1.9.0
+	github.com/valyala/fasthttp v1.51.0
 	go.uber.org/automaxprocs v1.5.3
-	golang.org/x/sync v0.5.0
+	golang.org/x/sync v0.7.0
 )
 
 require (
 	github.com/andybalholm/brotli v1.0.5 // indirect
-	github.com/btcsuite/btcd/btcec/v2 v2.2.0 // indirect
+	github.com/bitonicnl/verify-signed-message v0.7.1
+	github.com/btcsuite/btcd/btcec/v2 v2.3.3 // indirect
 	github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f // indirect
 	github.com/btcsuite/go-socks v0.0.0-20170105172521-4720035b7bfd // indirect
 	github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792 // indirect
@@ -34,21 +39,24 @@ require (
 	github.com/cockroachdb/redact v1.1.5 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/decred/dcrd/crypto/blake256 v1.0.1 // indirect
-	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 // indirect
-	github.com/ecies/go/v2 v2.0.9 // indirect
-	github.com/ethereum/go-ethereum v1.13.5 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0 // indirect
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
 	github.com/getsentry/sentry-go v0.18.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/google/uuid v1.5.0 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/holiman/uint256 v1.2.4 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
+	github.com/jackc/pgx v3.6.2+incompatible // indirect
 	github.com/jackc/puddle/v2 v2.2.1 // indirect
 	github.com/klauspost/compress v1.17.0 // indirect
 	github.com/kr/pretty v0.3.1 // indirect
 	github.com/kr/text v0.2.0 // indirect
+	github.com/lib/pq v1.10.9 // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
@@ -61,19 +69,19 @@ require (
 	github.com/rogpeppe/go-internal v1.9.0 // indirect
 	github.com/sagikazarmark/locafero v0.4.0 // indirect
 	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
+	github.com/samber/go-type-to-string v1.4.0 // indirect
 	github.com/sourcegraph/conc v0.3.0 // indirect
 	github.com/spf13/afero v1.11.0 // indirect
 	github.com/spf13/cast v1.6.0 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
-	github.com/valyala/fasthttp v1.51.0 // indirect
 	github.com/valyala/tcplisten v1.0.0 // indirect
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/multierr v1.9.0 // indirect
-	golang.org/x/crypto v0.17.0 // indirect
-	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
-	golang.org/x/sys v0.15.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/exp v0.0.0-20240525044651-4c93da0ed11d // indirect
+	golang.org/x/sys v0.20.0 // indirect
+	golang.org/x/text v0.15.0 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

internal/config/config.go

@@ -8,41 +8,50 @@ import (
 
 	"github.com/cockroachdb/errors"
 	"github.com/gaze-network/indexer-network/common"
-	btcconfig "github.com/gaze-network/indexer-network/modules/bitcoin/config"
+	brc20config "github.com/gaze-network/indexer-network/modules/brc20/config"
 	runesconfig "github.com/gaze-network/indexer-network/modules/runes/config"
 	"github.com/gaze-network/indexer-network/pkg/logger"
 	"github.com/gaze-network/indexer-network/pkg/logger/slogx"
-	"github.com/gaze-network/indexer-network/pkg/reportingclientv2"
+	"github.com/gaze-network/indexer-network/pkg/middleware/requestcontext"
+	"github.com/gaze-network/indexer-network/pkg/middleware/requestlogger"
+	"github.com/gaze-network/indexer-network/pkg/reportingclient"
 	"github.com/spf13/pflag"
 	"github.com/spf13/viper"
 )
 
 var (
-	configOnce sync.Once
-	config     = &Config{
+	isInit bool
+	mu     sync.Mutex
+	config = &Config{
 		Logger: logger.Config{
 			Output: "TEXT",
 		},
 		Network: common.NetworkMainnet,
+		HTTPServer: HTTPServerConfig{
+			Port: 8080,
+		},
 		BitcoinNode: BitcoinNodeClient{
 			User: "user",
 			Pass: "pass",
 		},
+		Modules: Modules{
+			Runes: runesconfig.Config{
+				Datasource: "bitcoin-node",
+				Database:   "postgres",
+			},
+		},
 	}
 )
 
 type Config struct {
-	Logger      logger.Config            `mapstructure:"logger"`
-	BitcoinNode BitcoinNodeClient        `mapstructure:"bitcoin_node"`
-	Network     common.Network           `mapstructure:"network"`
-	HTTPServer  HTTPServerConfig         `mapstructure:"http_server"`
-	Modules     Modules                  `mapstructure:"modules"`
-	Reporting   reportingclientv2.Config `mapstructure:"reporting"`
-	NodeKey     NodeKey                  `mapstructure:"node_key"`
-}
-
-type NodeKey struct {
-	Path string `mapstructure:"path"`
+	EnableModules []string               `mapstructure:"enable_modules"`
+	APIOnly       bool                   `mapstructure:"api_only"`
+	Logger        logger.Config          `mapstructure:"logger"`
+	BitcoinNode   BitcoinNodeClient      `mapstructure:"bitcoin_node"`
+	Network       common.Network         `mapstructure:"network"`
+	HTTPServer    HTTPServerConfig       `mapstructure:"http_server"`
+	Modules       Modules                `mapstructure:"modules"`
+	Reporting     reportingclient.Config `mapstructure:"reporting"`
 }
 
 type BitcoinNodeClient struct {
@@ -53,16 +62,50 @@ type BitcoinNodeClient struct {
 }
 
 type Modules struct {
-	Bitcoin btcconfig.Config   `mapstructure:"bitcoin"`
-	Runes   runesconfig.Config `mapstructure:"runes"`
+	Runes runesconfig.Config `mapstructure:"runes"`
+	BRC20 brc20config.Config `mapstructure:"brc20"`
 }
 
 type HTTPServerConfig struct {
-	Port int `mapstructure:"port"`
+	Port      int                               `mapstructure:"port"`
+	Logger    requestlogger.Config              `mapstructure:"logger"`
+	RequestIP requestcontext.WithClientIPConfig `mapstructure:"requestip"`
 }
 
 // Parse parse the configuration from environment variables
 func Parse(configFile ...string) Config {
+	mu.Lock()
+	defer mu.Unlock()
+	return parse(configFile...)
+}
+
+// Load returns the loaded configuration
+func Load() Config {
+	mu.Lock()
+	defer mu.Unlock()
+	if isInit {
+		return *config
+	}
+	return parse()
+}
+
+// BindPFlag binds a specific key to a pflag (as used by cobra).
+// Example (where serverCmd is a Cobra instance):
+//
+//	serverCmd.Flags().Int("port", 1138, "Port to run Application server on")
+//	Viper.BindPFlag("port", serverCmd.Flags().Lookup("port"))
+func BindPFlag(key string, flag *pflag.Flag) {
+	if err := viper.BindPFlag(key, flag); err != nil {
+		logger.Panic("Something went wrong, failed to bind flag for config", slog.String("package", "config"), slogx.Error(err))
+	}
+}
+
+// SetDefault sets the default value for this key.
+// SetDefault is case-insensitive for a key.
+// Default only used when no value is provided by the user via flag, config or ENV.
+func SetDefault(key string, value any) { viper.SetDefault(key, value) }
+
+func parse(configFile ...string) Config {
 	ctx := logger.WithContext(context.Background(), slog.String("package", "config"))
 
 	if len(configFile) > 0 && configFile[0] != "" {
@@ -77,39 +120,16 @@ func Parse(configFile ...string) Config {
 	if err := viper.ReadInConfig(); err != nil {
 		var errNotfound viper.ConfigFileNotFoundError
 		if errors.As(err, &errNotfound) {
-			logger.WarnContext(ctx, "config file not found, use default value", slogx.Error(err))
+			logger.WarnContext(ctx, "Config file not found, use default config value", slogx.Error(err))
 		} else {
-			logger.PanicContext(ctx, "invalid config file", slogx.Error(err))
+			logger.PanicContext(ctx, "Invalid config file", slogx.Error(err))
 		}
 	}
 
 	if err := viper.Unmarshal(&config); err != nil {
-		logger.PanicContext(ctx, "failed to unmarshal config", slogx.Error(err))
+		logger.PanicContext(ctx, "Something went wrong, failed to unmarshal config", slogx.Error(err))
 	}
 
+	isInit = true
 	return *config
 }
-
-// Load returns the loaded configuration
-func Load() Config {
-	configOnce.Do(func() {
-		_ = Parse()
-	})
-	return *config
-}
-
-// BindPFlag binds a specific key to a pflag (as used by cobra).
-// Example (where serverCmd is a Cobra instance):
-//
-//	serverCmd.Flags().Int("port", 1138, "Port to run Application server on")
-//	Viper.BindPFlag("port", serverCmd.Flags().Lookup("port"))
-func BindPFlag(key string, flag *pflag.Flag) {
-	if err := viper.BindPFlag(key, flag); err != nil {
-		logger.Panic("Failed to bind pflag for config", slogx.Error(err))
-	}
-}
-
-// SetDefault sets the default value for this key.
-// SetDefault is case-insensitive for a key.
-// Default only used when no value is provided by the user via flag, config or ENV.
-func SetDefault(key string, value any) { viper.SetDefault(key, value) }

internal/postgres/postgres.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/Cleverse/go-utilities/utils"
 	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common/errs"
 	"github.com/gaze-network/indexer-network/pkg/logger"
 	"github.com/jackc/pgx/v5"
 	"github.com/jackc/pgx/v5/pgxpool"
@@ -39,7 +40,7 @@ func New(ctx context.Context, conf Config) (*pgx.Conn, error) {
 	// Prepare connection pool configuration
 	connConfig, err := pgx.ParseConfig(conf.String())
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to parse config to create a new connection")
+		return nil, errors.Join(errs.InvalidArgument, errors.Wrap(err, "failed while parse config"))
 	}
 	connConfig.Tracer = conf.QueryTracer()
 
@@ -62,7 +63,7 @@ func NewPool(ctx context.Context, conf Config) (*pgxpool.Pool, error) {
 	// Prepare connection pool configuration
 	connConfig, err := pgxpool.ParseConfig(conf.String())
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to parse config to create a new connection pool")
+		return nil, errors.Join(errs.InvalidArgument, errors.Wrap(err, "failed while parse config"))
 	}
 	connConfig.MaxConns = utils.Default(conf.MaxConns, DefaultMaxConns)
 	connConfig.MinConns = utils.Default(conf.MinConns, DefaultMinConns)

main.go

@@ -7,7 +7,6 @@ import (
 	"syscall"
 
 	"github.com/gaze-network/indexer-network/cmd"
-	_ "go.uber.org/automaxprocs"
 )
 
 func main() {

modules/bitcoin/btcclient/client_db.go

@@ -1,229 +0,0 @@
-package btcclient
-
-import (
-	"context"
-	"time"
-
-	"github.com/btcsuite/btcd/chaincfg/chainhash"
-	"github.com/cockroachdb/errors"
-	"github.com/gaze-network/indexer-network/common/errs"
-	"github.com/gaze-network/indexer-network/core/datasources"
-	"github.com/gaze-network/indexer-network/core/types"
-	"github.com/gaze-network/indexer-network/internal/subscription"
-	"github.com/gaze-network/indexer-network/modules/bitcoin/datagateway"
-	"github.com/gaze-network/indexer-network/pkg/logger"
-	"github.com/gaze-network/indexer-network/pkg/logger/slogx"
-	cstream "github.com/planxnx/concurrent-stream"
-	"github.com/samber/lo"
-)
-
-// TODO: Refactor this, datasources.BitcoinNode and This package is the same.
-
-const (
-	blockStreamChunkSize = 100
-)
-
-// Make sure to implement the BitcoinDatasource interface
-var _ datasources.Datasource[[]*types.Block] = (*ClientDatabase)(nil)
-
-// ClientDatabase is a client to connect to the bitcoin database.
-type ClientDatabase struct {
-	bitcoinDg datagateway.BitcoinDataGateway
-}
-
-func NewClientDatabase(bitcoinDg datagateway.BitcoinDataGateway) *ClientDatabase {
-	return &ClientDatabase{
-		bitcoinDg: bitcoinDg,
-	}
-}
-
-func (c ClientDatabase) Name() string {
-	return "BitcoinDatabase"
-}
-
-func (c *ClientDatabase) Fetch(ctx context.Context, from, to int64) ([]*types.Block, error) {
-	ch := make(chan []*types.Block)
-	subscription, err := c.FetchAsync(ctx, from, to, ch)
-	if err != nil {
-		return nil, errors.WithStack(err)
-	}
-	defer subscription.Unsubscribe()
-
-	blocks := make([]*types.Block, 0)
-	for {
-		select {
-		case b, ok := <-ch:
-			if !ok {
-				return blocks, nil
-			}
-			blocks = append(blocks, b...)
-		case <-subscription.Done():
-			if err := ctx.Err(); err != nil {
-				return nil, errors.Wrap(err, "context done")
-			}
-			return blocks, nil
-		case err := <-subscription.Err():
-			if err != nil {
-				return nil, errors.Wrap(err, "got error while fetch async")
-			}
-			return blocks, nil
-		case <-ctx.Done():
-			return nil, errors.Wrap(ctx.Err(), "context done")
-		}
-	}
-}
-
-func (c *ClientDatabase) FetchAsync(ctx context.Context, from, to int64, ch chan<- []*types.Block) (*subscription.ClientSubscription[[]*types.Block], error) {
-	from, to, skip, err := c.prepareRange(ctx, from, to)
-	if err != nil {
-		return nil, errors.Wrap(err, "failed to prepare fetch range")
-	}
-
-	subscription := subscription.NewSubscription(ch)
-	if skip {
-		if err := subscription.UnsubscribeWithContext(ctx); err != nil {
-			return nil, errors.Wrap(err, "failed to unsubscribe")
-		}
-		return subscription.Client(), nil
-	}
-
-	// Create parallel stream
-	out := make(chan []*types.Block)
-	stream := cstream.NewStream(ctx, 8, out)
-
-	// create slice of block height to fetch
-	blockHeights := make([]int64, 0, to-from+1)
-	for i := from; i <= to; i++ {
-		blockHeights = append(blockHeights, i)
-	}
-
-	// Wait for stream to finish and close out channel
-	go func() {
-		defer close(out)
-		_ = stream.Wait()
-	}()
-
-	// Fan-out blocks to subscription channel
-	go func() {
-		defer func() {
-			// add a bit delay to prevent shutdown before client receive all blocks
-			time.Sleep(100 * time.Millisecond)
-
-			subscription.Unsubscribe()
-		}()
-		for {
-			select {
-			case data, ok := <-out:
-				// stream closed
-				if !ok {
-					return
-				}
-
-				// empty blocks
-				if len(data) == 0 {
-					continue
-				}
-
-				// send blocks to subscription channel
-				if err := subscription.Send(ctx, data); err != nil {
-					if errors.Is(err, errs.Closed) {
-						return
-					}
-					logger.WarnContext(ctx, "failed while dispatch block",
-						slogx.Error(err),
-						slogx.Int64("start", data[0].Header.Height),
-						slogx.Int64("end", data[len(data)-1].Header.Height),
-					)
-				}
-			case <-ctx.Done():
-				return
-			}
-		}
-	}()
-
-	// Parallel fetch blocks from Bitcoin node until complete all block heights
-	// or subscription is done.
-	go func() {
-		defer stream.Close()
-		done := subscription.Done()
-		chunks := lo.Chunk(blockHeights, blockStreamChunkSize)
-		for _, chunk := range chunks {
-			chunk := chunk
-			select {
-			case <-done:
-				return
-			case <-ctx.Done():
-				return
-			default:
-				if len(chunk) == 0 {
-					continue
-				}
-				stream.Go(func() []*types.Block {
-					fromHeight, toHeight := chunk[0], chunk[len(chunk)-1]
-					blocks, err := c.bitcoinDg.GetBlocksByHeightRange(ctx, fromHeight, toHeight)
-					if err != nil {
-						logger.ErrorContext(ctx, "failed to get blocks",
-							slogx.Error(err),
-							slogx.Int64("from_height", fromHeight),
-							slogx.Int64("to_height", toHeight),
-						)
-						if err := subscription.SendError(ctx, errors.Wrapf(err, "failed to get blocks: from_height: %d, to_height: %d", fromHeight, toHeight)); err != nil {
-							logger.ErrorContext(ctx, "failed to send error", slogx.Error(err))
-						}
-						return nil
-					}
-					return blocks
-				})
-			}
-		}
-	}()
-
-	return subscription.Client(), nil
-}
-
-func (c *ClientDatabase) GetBlockHeader(ctx context.Context, height int64) (types.BlockHeader, error) {
-	header, err := c.bitcoinDg.GetBlockHeaderByHeight(ctx, height)
-	if err != nil {
-		return types.BlockHeader{}, errors.WithStack(err)
-	}
-	return header, nil
-}
-
-func (c *ClientDatabase) prepareRange(ctx context.Context, fromHeight, toHeight int64) (start, end int64, skip bool, err error) {
-	start = fromHeight
-	end = toHeight
-
-	// get current bitcoin block height
-	latestBlock, err := c.bitcoinDg.GetLatestBlockHeader(ctx)
-	if err != nil {
-		return -1, -1, false, errors.Wrap(err, "failed to get block count")
-	}
-
-	// set start to genesis block height
-	if start < 0 {
-		start = 0
-	}
-
-	// set end to current bitcoin block height if
-	// - end is -1
-	// - end is greater that current bitcoin block height
-	if end < 0 || end > latestBlock.Height {
-		end = latestBlock.Height
-	}
-
-	// if start is greater than end, skip this round
-	if start > end {
-		return -1, -1, true, nil
-	}
-
-	return start, end, false, nil
-}
-
-// GetTransactionByHash returns a transaction with the given hash. Returns errs.NotFound if transaction does not exist.
-func (c *ClientDatabase) GetTransactionByHash(ctx context.Context, txHash chainhash.Hash) (*types.Transaction, error) {
-	tx, err := c.bitcoinDg.GetTransactionByHash(ctx, txHash)
-	if err != nil {
-		return nil, errors.Wrap(err, "failed to get transaction by hash")
-	}
-	return tx, nil
-}

modules/bitcoin/config/config.go

@@ -1,8 +0,0 @@
-package config
-
-import "github.com/gaze-network/indexer-network/internal/postgres"
-
-type Config struct {
-	Database string          `mapstructure:"database"` // Database to store bitcoin data.
-	Postgres postgres.Config `mapstructure:"postgres"`
-}

modules/bitcoin/constants.go

@@ -1,17 +0,0 @@
-package bitcoin
-
-import (
-	"github.com/gaze-network/indexer-network/common"
-	"github.com/gaze-network/indexer-network/core/types"
-)
-
-const (
-	Version   = "v0.0.1"
-	DBVersion = 1
-)
-
-// DefaultCurrentBlockHeight is the default value for the current block height for first time indexing
-var defaultCurrentBlock = types.BlockHeader{
-	Hash:   common.ZeroHash,
-	Height: -1,
-}

modules/bitcoin/database/postgresql/migrations/000001_initialize_table.down.sql

@@ -1,18 +0,0 @@
-BEGIN;
-
--- DROP INDEX
-DROP INDEX IF EXISTS bitcoin_blocks_block_hash_idx;
-DROP INDEX IF EXISTS bitcoin_transactions_block_hash_idx;
-DROP INDEX IF EXISTS bitcoin_transactions_block_height_idx;
-DROP INDEX IF EXISTS bitcoin_transaction_txouts_pkscript_idx;
-DROP INDEX IF EXISTS bitcoin_transaction_txins_prevout_idx;
-
--- DROP TABLE
-DROP TABLE IF EXISTS "bitcoin_indexer_stats";
-DROP TABLE IF EXISTS "bitcoin_indexer_db_version";
-DROP TABLE IF EXISTS "bitcoin_transaction_txins";
-DROP TABLE IF EXISTS "bitcoin_transaction_txouts";
-DROP TABLE IF EXISTS "bitcoin_transactions";
-DROP TABLE IF EXISTS "bitcoin_blocks";
-
-COMMIT;

modules/bitcoin/database/postgresql/migrations/000001_initialize_table.up.sql

@@ -1,71 +0,0 @@
-BEGIN;
-
--- Indexer Client Information
-
-CREATE TABLE IF NOT EXISTS "bitcoin_indexer_stats" (
-	"id" BIGSERIAL PRIMARY KEY,
-	"client_version" TEXT NOT NULL,
-	"network" TEXT NOT NULL,
-	"created_at" TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP
-);
-
-CREATE TABLE IF NOT EXISTS "bitcoin_indexer_db_version" (
-	"id" BIGSERIAL PRIMARY KEY,
-	"version" INT NOT NULL,
-	"created_at" TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP
-);
-INSERT INTO "bitcoin_indexer_db_version" ("version") VALUES (1);
-
--- Bitcoin Data
-
-CREATE TABLE IF NOT EXISTS "bitcoin_blocks" (
-	"block_height" INT NOT NULL PRIMARY KEY,
-	"block_hash" TEXT NOT NULL,
-	"version" INT NOT NULL,
-	"merkle_root" TEXT NOT NULL,
-	"prev_block_hash" TEXT NOT NULL,
-	"timestamp" TIMESTAMP WITH TIME ZONE NOT NULL,
-	"bits" BIGINT NOT NULL,
-	"nonce" BIGINT NOT NULL
-);
-
-CREATE INDEX IF NOT EXISTS bitcoin_blocks_block_hash_idx ON "bitcoin_blocks" USING HASH ("block_hash");
-
-CREATE TABLE IF NOT EXISTS "bitcoin_transactions" (
-	"tx_hash" TEXT NOT NULL PRIMARY KEY,
-	"version" INT NOT NULL,
-	"locktime" BIGINT NOT NULL,
-	"block_height" INT NOT NULL,
-	"block_hash" TEXT NOT NULL,
-	"idx" INT NOT NULL
-);
-
-CREATE INDEX IF NOT EXISTS bitcoin_transactions_block_height_idx ON "bitcoin_transactions" USING BTREE ("block_height");
-CREATE INDEX IF NOT EXISTS bitcoin_transactions_block_hash_idx ON "bitcoin_transactions" USING BTREE ("block_hash");
-
-CREATE TABLE IF NOT EXISTS "bitcoin_transaction_txouts" (
-	"tx_hash" TEXT NOT NULL,
-	"tx_idx" INT NOT NULL,
-	"pkscript" TEXT NOT NULL, -- Hex String
-	"value" BIGINT NOT NULL,
-	"is_spent" BOOLEAN NOT NULL DEFAULT false,
-	PRIMARY KEY ("tx_hash", "tx_idx")
-);
-
-CREATE INDEX IF NOT EXISTS bitcoin_transaction_txouts_pkscript_idx ON "bitcoin_transaction_txouts" USING HASH ("pkscript");
-
-CREATE TABLE IF NOT EXISTS "bitcoin_transaction_txins" (
-	"tx_hash" TEXT NOT NULL,
-	"tx_idx" INT NOT NULL,
-	"prevout_tx_hash" TEXT NOT NULL,
-	"prevout_tx_idx" INT NOT NULL,
-	"prevout_pkscript" TEXT NULL, -- Hex String, Can be NULL if the prevout is a coinbase transaction
-	"scriptsig" TEXT NOT NULL, -- Hex String
-	"witness" TEXT, -- Hex String
-	"sequence" BIGINT NOT NULL,
-	PRIMARY KEY ("tx_hash", "tx_idx")
-);
-
-CREATE INDEX IF NOT EXISTS bitcoin_transaction_txins_prevout_idx ON "bitcoin_transaction_txins" USING BTREE ("prevout_tx_hash", "prevout_tx_idx");
-
-COMMIT;

modules/bitcoin/database/postgresql/queries/data.sql

@@ -1,59 +0,0 @@
--- name: GetLatestBlockHeader :one
-SELECT * FROM bitcoin_blocks ORDER BY block_height DESC LIMIT 1;
-
--- name: InsertBlock :exec
-INSERT INTO bitcoin_blocks ("block_height","block_hash","version","merkle_root","prev_block_hash","timestamp","bits","nonce") VALUES ($1, $2, $3, $4, $5, $6, $7, $8);
-
--- name: InsertTransaction :exec
-INSERT INTO bitcoin_transactions ("tx_hash","version","locktime","block_height","block_hash","idx") VALUES ($1, $2, $3, $4, $5, $6);
-
--- name: InsertTransactionTxOut :exec
-INSERT INTO bitcoin_transaction_txouts ("tx_hash","tx_idx","pkscript","value") VALUES ($1, $2, $3, $4);
-
--- name: InsertTransactionTxIn :exec
-WITH update_txout AS (
-	UPDATE "bitcoin_transaction_txouts"
-	SET "is_spent" = true
-	WHERE "tx_hash" = $3 AND "tx_idx" = $4 AND "is_spent" = false -- TODO: should throw an error if already spent
-	RETURNING "pkscript"
-)
-INSERT INTO bitcoin_transaction_txins ("tx_hash","tx_idx","prevout_tx_hash","prevout_tx_idx","prevout_pkscript","scriptsig","witness","sequence") 
-VALUES ($1, $2, $3, $4, (SELECT "pkscript" FROM update_txout), $5, $6, $7);
-
--- name: RevertData :exec
-WITH delete_tx AS (
-	DELETE FROM "bitcoin_transactions" WHERE "block_height" >= @from_height
-	RETURNING "tx_hash"
-), delete_txin AS (
-	DELETE FROM  "bitcoin_transaction_txins" WHERE "tx_hash" = ANY(SELECT "tx_hash" FROM delete_tx)
-	RETURNING "prevout_tx_hash", "prevout_tx_idx"
-), delete_txout AS (
-	DELETE FROM  "bitcoin_transaction_txouts" WHERE "tx_hash" = ANY(SELECT "tx_hash" FROM delete_tx)
-	RETURNING "tx_hash", "tx_idx"
-), revert_txout_spent AS (
-	UPDATE "bitcoin_transaction_txouts"
-	SET "is_spent" = false
-	WHERE 
-		("tx_hash", "tx_idx") IN (SELECT "prevout_tx_hash", "prevout_tx_idx" FROM delete_txin) AND 
-		("tx_hash", "tx_idx") NOT IN (SELECT "tx_hash", "tx_idx" FROM delete_txout) -- avoid to modified same row twice (modified the same row twice in a single statement is not supported)
-	RETURNING NULL
-)
-DELETE FROM "bitcoin_blocks" WHERE "bitcoin_blocks"."block_height" >= @from_height;
-
--- name: GetBlockByHeight :one
-SELECT * FROM bitcoin_blocks WHERE block_height = $1;
-
--- name: GetBlocksByHeightRange :many
-SELECT * FROM bitcoin_blocks WHERE block_height >= @from_height AND block_height <= @to_height ORDER BY block_height ASC;
-
--- name: GetTransactionsByHeightRange :many
-SELECT * FROM bitcoin_transactions WHERE block_height >= @from_height AND block_height <= @to_height;
-
--- name: GetTransactionByHash :one
-SELECT * FROM bitcoin_transactions WHERE tx_hash = $1;
-
--- name: GetTransactionTxOutsByTxHashes :many
-SELECT * FROM bitcoin_transaction_txouts WHERE tx_hash = ANY(@tx_hashes::TEXT[]);
-
--- name: GetTransactionTxInsByTxHashes :many
-SELECT * FROM bitcoin_transaction_txins WHERE tx_hash = ANY(@tx_hashes::TEXT[]);

modules/bitcoin/database/postgresql/queries/info.sql

@@ -1,8 +0,0 @@
--- name: GetCurrentDBVersion :one
-SELECT "version" FROM bitcoin_indexer_db_version ORDER BY id DESC LIMIT 1;
-
--- name: GetCurrentIndexerStats :one
-SELECT "client_version", "network" FROM bitcoin_indexer_stats ORDER BY id DESC LIMIT 1;
-
--- name: UpdateIndexerStats :exec
-INSERT INTO bitcoin_indexer_stats (client_version, network) VALUES ($1, $2);

modules/bitcoin/datagateway/bitcoin_data.go

@@ -1,25 +0,0 @@
-package datagateway
-
-import (
-	"context"
-
-	"github.com/btcsuite/btcd/chaincfg/chainhash"
-	"github.com/gaze-network/indexer-network/core/types"
-)
-
-type BitcoinDataGateway interface {
-	BitcoinWriterDataDataGateway
-	BitcoinReaderDataDataGateway
-}
-
-type BitcoinWriterDataDataGateway interface {
-	InsertBlock(context.Context, *types.Block) error
-	RevertBlocks(context.Context, int64) error
-}
-
-type BitcoinReaderDataDataGateway interface {
-	GetLatestBlockHeader(context.Context) (types.BlockHeader, error)
-	GetBlockHeaderByHeight(ctx context.Context, blockHeight int64) (types.BlockHeader, error)
-	GetBlocksByHeightRange(ctx context.Context, from int64, to int64) ([]*types.Block, error)
-	GetTransactionByHash(ctx context.Context, txHash chainhash.Hash) (*types.Transaction, error)
-}

modules/bitcoin/datagateway/indexer_info.go

@@ -1,13 +0,0 @@
-package datagateway
-
-import (
-	"context"
-
-	"github.com/gaze-network/indexer-network/common"
-)
-
-type IndexerInformationDataGateway interface {
-	GetCurrentDBVersion(ctx context.Context) (int32, error)
-	GetLatestIndexerStats(ctx context.Context) (version string, network common.Network, err error)
-	UpdateIndexerStats(ctx context.Context, clientVersion string, network common.Network) error
-}

modules/bitcoin/processor.go

@@ -1,142 +0,0 @@
-package bitcoin
-
-import (
-	"cmp"
-	"context"
-	"log/slog"
-	"slices"
-
-	"github.com/cockroachdb/errors"
-	"github.com/gaze-network/indexer-network/common/errs"
-	"github.com/gaze-network/indexer-network/core/indexers"
-	"github.com/gaze-network/indexer-network/core/types"
-	"github.com/gaze-network/indexer-network/internal/config"
-	"github.com/gaze-network/indexer-network/modules/bitcoin/datagateway"
-	"github.com/gaze-network/indexer-network/pkg/logger"
-	"github.com/gaze-network/indexer-network/pkg/logger/slogx"
-)
-
-// Make sure to implement the BitcoinProcessor interface
-var _ indexers.BitcoinProcessor = (*Processor)(nil)
-
-type Processor struct {
-	config        config.Config
-	bitcoinDg     datagateway.BitcoinDataGateway
-	indexerInfoDg datagateway.IndexerInformationDataGateway
-}
-
-func NewProcessor(config config.Config, bitcoinDg datagateway.BitcoinDataGateway, indexerInfoDg datagateway.IndexerInformationDataGateway) *Processor {
-	return &Processor{
-		config:        config,
-		bitcoinDg:     bitcoinDg,
-		indexerInfoDg: indexerInfoDg,
-	}
-}
-
-func (p Processor) Name() string {
-	return "Bitcoin"
-}
-
-func (p *Processor) Process(ctx context.Context, inputs []*types.Block) error {
-	if len(inputs) == 0 {
-		return nil
-	}
-
-	// Sort ASC by block height
-	slices.SortFunc(inputs, func(t1, t2 *types.Block) int {
-		return cmp.Compare(t1.Header.Height, t2.Header.Height)
-	})
-
-	latestBlock, err := p.CurrentBlock(ctx)
-	if err != nil {
-		return errors.Wrap(err, "failed to get latest indexed block header")
-	}
-
-	// check if the given blocks are continue from the latest indexed block
-	// return an error to prevent inserting out-of-order blocks or duplicate blocks
-	if inputs[0].Header.Height != latestBlock.Height+1 {
-		return errors.New("given blocks are not continue from the latest indexed block")
-	}
-
-	// check if the given blocks are in sequence and not missing any block
-	for i := 1; i < len(inputs); i++ {
-		if inputs[i].Header.Height != inputs[i-1].Header.Height+1 {
-			return errors.New("given blocks are not in sequence")
-		}
-	}
-
-	// Insert blocks
-	for _, b := range inputs {
-		err := p.bitcoinDg.InsertBlock(ctx, b)
-		if err != nil {
-			return errors.Wrapf(err, "failed to insert block, height: %d, hash: %s", b.Header.Height, b.Header.Hash)
-		}
-		logger.InfoContext(ctx, "Block inserted", slog.Int64("height", b.Header.Height), slogx.Stringer("hash", b.Header.Hash))
-	}
-
-	return nil
-}
-
-func (p *Processor) CurrentBlock(ctx context.Context) (types.BlockHeader, error) {
-	b, err := p.bitcoinDg.GetLatestBlockHeader(ctx)
-	if err != nil {
-		if errors.Is(err, errs.NotFound) {
-			return defaultCurrentBlock, nil
-		}
-		return types.BlockHeader{}, errors.WithStack(err)
-	}
-	return b, nil
-}
-
-func (p *Processor) GetIndexedBlock(ctx context.Context, height int64) (types.BlockHeader, error) {
-	header, err := p.bitcoinDg.GetBlockHeaderByHeight(ctx, height)
-	if err != nil {
-		return types.BlockHeader{}, errors.WithStack(err)
-	}
-	return header, nil
-}
-
-func (p *Processor) RevertData(ctx context.Context, from int64) error {
-	if err := p.bitcoinDg.RevertBlocks(ctx, from); err != nil {
-		return errors.WithStack(err)
-	}
-	return nil
-}
-
-func (p *Processor) VerifyStates(ctx context.Context) error {
-	// Check current db version with the required db version
-	{
-		dbVersion, err := p.indexerInfoDg.GetCurrentDBVersion(ctx)
-		if err != nil {
-			return errors.Wrap(err, "can't get current db version")
-		}
-
-		if dbVersion != DBVersion {
-			return errors.Wrapf(errs.ConflictSetting, "db version mismatch, please upgrade to version %d", DBVersion)
-		}
-	}
-
-	// Check if the latest indexed network is mismatched with configured network
-	{
-		_, network, err := p.indexerInfoDg.GetLatestIndexerStats(ctx)
-		if err != nil {
-			if errors.Is(err, errs.NotFound) {
-				goto end
-			}
-			return errors.Wrap(err, "can't get latest indexer stats")
-		}
-
-		if network != p.config.Network {
-			return errors.Wrapf(errs.ConflictSetting, "network mismatch, latest indexed network: %q, configured network: %q. If you want to change the network, please reset the database", network, p.config.Network)
-		}
-	}
-
-	// TODO: Verify the states of the indexed data to ensure the last shutdown was graceful and no missing data.
-
-end:
-	if err := p.indexerInfoDg.UpdateIndexerStats(ctx, Version, p.config.Network); err != nil {
-		return errors.Wrap(err, "can't update indexer stats")
-	}
-
-	return nil
-}

modules/bitcoin/repository/postgres/block.go

@@ -1,171 +0,0 @@
-package postgres
-
-import (
-	"context"
-
-	"github.com/cockroachdb/errors"
-	"github.com/gaze-network/indexer-network/common/errs"
-	"github.com/gaze-network/indexer-network/core/types"
-	"github.com/gaze-network/indexer-network/modules/bitcoin/repository/postgres/gen"
-	"github.com/jackc/pgx/v5"
-	"github.com/samber/lo"
-)
-
-func (r *Repository) GetLatestBlockHeader(ctx context.Context) (types.BlockHeader, error) {
-	model, err := r.queries.GetLatestBlockHeader(ctx)
-	if err != nil {
-		if errors.Is(err, pgx.ErrNoRows) {
-			return types.BlockHeader{}, errors.Join(errs.NotFound, err)
-		}
-		return types.BlockHeader{}, errors.Wrap(err, "failed to get latest block header")
-	}
-
-	data, err := mapBlockHeaderModelToType(model)
-	if err != nil {
-		return types.BlockHeader{}, errors.Wrap(err, "failed to map block header model to type")
-	}
-
-	return data, nil
-}
-
-func (r *Repository) InsertBlock(ctx context.Context, block *types.Block) error {
-	blockParams, txParams, txoutParams, txinParams := mapBlockTypeToParams(block)
-
-	tx, err := r.db.Begin(ctx)
-	if err != nil {
-		return errors.Wrap(err, "failed to begin transaction")
-	}
-	defer tx.Rollback(ctx)
-
-	queries := r.queries.WithTx(tx)
-
-	if err := queries.InsertBlock(ctx, blockParams); err != nil {
-		return errors.Wrapf(err, "failed to insert block, height: %d, hash: %s", blockParams.BlockHeight, blockParams.BlockHash)
-	}
-
-	for _, params := range txParams {
-		if err := queries.InsertTransaction(ctx, params); err != nil {
-			return errors.Wrapf(err, "failed to insert transaction, hash: %s", params.TxHash)
-		}
-	}
-
-	// Should insert txout first, then txin
-	// Because txin references txout
-	for _, params := range txoutParams {
-		if err := queries.InsertTransactionTxOut(ctx, params); err != nil {
-			return errors.Wrapf(err, "failed to insert transaction txout, %v:%v", params.TxHash, params.TxIdx)
-		}
-	}
-
-	for _, params := range txinParams {
-		if err := queries.InsertTransactionTxIn(ctx, params); err != nil {
-			return errors.Wrapf(err, "failed to insert transaction txin, %v:%v", params.TxHash, params.TxIdx)
-		}
-	}
-
-	if err := tx.Commit(ctx); err != nil {
-		return errors.Wrap(err, "failed to commit transaction")
-	}
-
-	return nil
-}
-
-func (r *Repository) RevertBlocks(ctx context.Context, from int64) error {
-	tx, err := r.db.Begin(ctx)
-	if err != nil {
-		return errors.Wrap(err, "failed to begin transaction")
-	}
-	defer tx.Rollback(ctx)
-
-	queries := r.queries.WithTx(tx)
-	if err := queries.RevertData(ctx, int32(from)); err != nil && !errors.Is(err, pgx.ErrNoRows) {
-		return errors.Wrap(err, "failed to revert data")
-	}
-
-	if err := tx.Commit(ctx); err != nil {
-		return errors.Wrap(err, "failed to commit transaction")
-	}
-
-	return nil
-}
-
-func (r *Repository) GetBlockHeaderByHeight(ctx context.Context, blockHeight int64) (types.BlockHeader, error) {
-	blockModel, err := r.queries.GetBlockByHeight(ctx, int32(blockHeight))
-	if err != nil {
-		if errors.Is(err, pgx.ErrNoRows) {
-			return types.BlockHeader{}, errors.Join(errs.NotFound, err)
-		}
-		return types.BlockHeader{}, errors.Wrap(err, "failed to get block by height")
-	}
-
-	data, err := mapBlockHeaderModelToType(blockModel)
-	if err != nil {
-		return types.BlockHeader{}, errors.Wrap(err, "failed to map block header model to type")
-	}
-	return data, nil
-}
-
-func (r *Repository) GetBlocksByHeightRange(ctx context.Context, from int64, to int64) ([]*types.Block, error) {
-	blocks, err := r.queries.GetBlocksByHeightRange(ctx, gen.GetBlocksByHeightRangeParams{
-		FromHeight: int32(from),
-		ToHeight:   int32(to),
-	})
-	if err != nil {
-		return nil, errors.Wrap(err, "failed to get blocks by height range")
-	}
-
-	if len(blocks) == 0 {
-		return []*types.Block{}, nil
-	}
-
-	txs, err := r.queries.GetTransactionsByHeightRange(ctx, gen.GetTransactionsByHeightRangeParams{
-		FromHeight: int32(from),
-		ToHeight:   int32(to),
-	})
-	if err != nil {
-		return nil, errors.Wrap(err, "failed to get transactions by height range")
-	}
-
-	txHashes := lo.Map(txs, func(tx gen.BitcoinTransaction, _ int) string { return tx.TxHash })
-
-	txOuts, err := r.queries.GetTransactionTxOutsByTxHashes(ctx, txHashes)
-	if err != nil {
-		return nil, errors.Wrap(err, "failed to get transaction txouts by tx hashes")
-	}
-
-	txIns, err := r.queries.GetTransactionTxInsByTxHashes(ctx, txHashes)
-	if err != nil {
-		return nil, errors.Wrap(err, "failed to get transaction txins by tx hashes")
-	}
-
-	// Grouping result by block height and tx hash
-	groupedTxs := lo.GroupBy(txs, func(tx gen.BitcoinTransaction) int32 { return tx.BlockHeight })
-	groupedTxOuts := lo.GroupBy(txOuts, func(txOut gen.BitcoinTransactionTxout) string { return txOut.TxHash })
-	groupedTxIns := lo.GroupBy(txIns, func(txIn gen.BitcoinTransactionTxin) string { return txIn.TxHash })
-
-	var errs []error
-	result := lo.Map(blocks, func(blockModel gen.BitcoinBlock, _ int) *types.Block {
-		header, err := mapBlockHeaderModelToType(blockModel)
-		if err != nil {
-			errs = append(errs, errors.Wrap(err, "failed to map block header model to type"))
-			return nil
-		}
-
-		txsModel := groupedTxs[blockModel.BlockHeight]
-		return &types.Block{
-			Header: header,
-			Transactions: lo.Map(txsModel, func(txModel gen.BitcoinTransaction, _ int) *types.Transaction {
-				tx, err := mapTransactionModelToType(txModel, groupedTxIns[txModel.TxHash], groupedTxOuts[txModel.TxHash])
-				if err != nil {
-					errs = append(errs, errors.Wrap(err, "failed to map transaction model to type"))
-					return nil
-				}
-				return &tx
-			}),
-		}
-	})
-	if len(errs) > 0 {
-		return nil, errors.Wrap(errors.Join(errs...), "failed while mapping result")
-	}
-	return result, nil
-}

modules/bitcoin/repository/postgres/gen/data.sql.go

@@ -1,342 +0,0 @@
-// Code generated by sqlc. DO NOT EDIT.
-// versions:
-//   sqlc v1.26.0
-// source: data.sql
-
-package gen
-
-import (
-	"context"
-
-	"github.com/jackc/pgx/v5/pgtype"
-)
-
-const getBlockByHeight = `-- name: GetBlockByHeight :one
-SELECT block_height, block_hash, version, merkle_root, prev_block_hash, timestamp, bits, nonce FROM bitcoin_blocks WHERE block_height = $1
-`
-
-func (q *Queries) GetBlockByHeight(ctx context.Context, blockHeight int32) (BitcoinBlock, error) {
-	row := q.db.QueryRow(ctx, getBlockByHeight, blockHeight)
-	var i BitcoinBlock
-	err := row.Scan(
-		&i.BlockHeight,
-		&i.BlockHash,
-		&i.Version,
-		&i.MerkleRoot,
-		&i.PrevBlockHash,
-		&i.Timestamp,
-		&i.Bits,
-		&i.Nonce,
-	)
-	return i, err
-}
-
-const getBlocksByHeightRange = `-- name: GetBlocksByHeightRange :many
-SELECT block_height, block_hash, version, merkle_root, prev_block_hash, timestamp, bits, nonce FROM bitcoin_blocks WHERE block_height >= $1 AND block_height <= $2 ORDER BY block_height ASC
-`
-
-type GetBlocksByHeightRangeParams struct {
-	FromHeight int32
-	ToHeight   int32
-}
-
-func (q *Queries) GetBlocksByHeightRange(ctx context.Context, arg GetBlocksByHeightRangeParams) ([]BitcoinBlock, error) {
-	rows, err := q.db.Query(ctx, getBlocksByHeightRange, arg.FromHeight, arg.ToHeight)
-	if err != nil {
-		return nil, err
-	}
-	defer rows.Close()
-	var items []BitcoinBlock
-	for rows.Next() {
-		var i BitcoinBlock
-		if err := rows.Scan(
-			&i.BlockHeight,
-			&i.BlockHash,
-			&i.Version,
-			&i.MerkleRoot,
-			&i.PrevBlockHash,
-			&i.Timestamp,
-			&i.Bits,
-			&i.Nonce,
-		); err != nil {
-			return nil, err
-		}
-		items = append(items, i)
-	}
-	if err := rows.Err(); err != nil {
-		return nil, err
-	}
-	return items, nil
-}
-
-const getLatestBlockHeader = `-- name: GetLatestBlockHeader :one
-SELECT block_height, block_hash, version, merkle_root, prev_block_hash, timestamp, bits, nonce FROM bitcoin_blocks ORDER BY block_height DESC LIMIT 1
-`
-
-func (q *Queries) GetLatestBlockHeader(ctx context.Context) (BitcoinBlock, error) {
-	row := q.db.QueryRow(ctx, getLatestBlockHeader)
-	var i BitcoinBlock
-	err := row.Scan(
-		&i.BlockHeight,
-		&i.BlockHash,
-		&i.Version,
-		&i.MerkleRoot,
-		&i.PrevBlockHash,
-		&i.Timestamp,
-		&i.Bits,
-		&i.Nonce,
-	)
-	return i, err
-}
-
-const getTransactionByHash = `-- name: GetTransactionByHash :one
-SELECT tx_hash, version, locktime, block_height, block_hash, idx FROM bitcoin_transactions WHERE tx_hash = $1
-`
-
-func (q *Queries) GetTransactionByHash(ctx context.Context, txHash string) (BitcoinTransaction, error) {
-	row := q.db.QueryRow(ctx, getTransactionByHash, txHash)
-	var i BitcoinTransaction
-	err := row.Scan(
-		&i.TxHash,
-		&i.Version,
-		&i.Locktime,
-		&i.BlockHeight,
-		&i.BlockHash,
-		&i.Idx,
-	)
-	return i, err
-}
-
-const getTransactionTxInsByTxHashes = `-- name: GetTransactionTxInsByTxHashes :many
-SELECT tx_hash, tx_idx, prevout_tx_hash, prevout_tx_idx, prevout_pkscript, scriptsig, witness, sequence FROM bitcoin_transaction_txins WHERE tx_hash = ANY($1::TEXT[])
-`
-
-func (q *Queries) GetTransactionTxInsByTxHashes(ctx context.Context, txHashes []string) ([]BitcoinTransactionTxin, error) {
-	rows, err := q.db.Query(ctx, getTransactionTxInsByTxHashes, txHashes)
-	if err != nil {
-		return nil, err
-	}
-	defer rows.Close()
-	var items []BitcoinTransactionTxin
-	for rows.Next() {
-		var i BitcoinTransactionTxin
-		if err := rows.Scan(
-			&i.TxHash,
-			&i.TxIdx,
-			&i.PrevoutTxHash,
-			&i.PrevoutTxIdx,
-			&i.PrevoutPkscript,
-			&i.Scriptsig,
-			&i.Witness,
-			&i.Sequence,
-		); err != nil {
-			return nil, err
-		}
-		items = append(items, i)
-	}
-	if err := rows.Err(); err != nil {
-		return nil, err
-	}
-	return items, nil
-}
-
-const getTransactionTxOutsByTxHashes = `-- name: GetTransactionTxOutsByTxHashes :many
-SELECT tx_hash, tx_idx, pkscript, value, is_spent FROM bitcoin_transaction_txouts WHERE tx_hash = ANY($1::TEXT[])
-`
-
-func (q *Queries) GetTransactionTxOutsByTxHashes(ctx context.Context, txHashes []string) ([]BitcoinTransactionTxout, error) {
-	rows, err := q.db.Query(ctx, getTransactionTxOutsByTxHashes, txHashes)
-	if err != nil {
-		return nil, err
-	}
-	defer rows.Close()
-	var items []BitcoinTransactionTxout
-	for rows.Next() {
-		var i BitcoinTransactionTxout
-		if err := rows.Scan(
-			&i.TxHash,
-			&i.TxIdx,
-			&i.Pkscript,
-			&i.Value,
-			&i.IsSpent,
-		); err != nil {
-			return nil, err
-		}
-		items = append(items, i)
-	}
-	if err := rows.Err(); err != nil {
-		return nil, err
-	}
-	return items, nil
-}
-
-const getTransactionsByHeightRange = `-- name: GetTransactionsByHeightRange :many
-SELECT tx_hash, version, locktime, block_height, block_hash, idx FROM bitcoin_transactions WHERE block_height >= $1 AND block_height <= $2
-`
-
-type GetTransactionsByHeightRangeParams struct {
-	FromHeight int32
-	ToHeight   int32
-}
-
-func (q *Queries) GetTransactionsByHeightRange(ctx context.Context, arg GetTransactionsByHeightRangeParams) ([]BitcoinTransaction, error) {
-	rows, err := q.db.Query(ctx, getTransactionsByHeightRange, arg.FromHeight, arg.ToHeight)
-	if err != nil {
-		return nil, err
-	}
-	defer rows.Close()
-	var items []BitcoinTransaction
-	for rows.Next() {
-		var i BitcoinTransaction
-		if err := rows.Scan(
-			&i.TxHash,
-			&i.Version,
-			&i.Locktime,
-			&i.BlockHeight,
-			&i.BlockHash,
-			&i.Idx,
-		); err != nil {
-			return nil, err
-		}
-		items = append(items, i)
-	}
-	if err := rows.Err(); err != nil {
-		return nil, err
-	}
-	return items, nil
-}
-
-const insertBlock = `-- name: InsertBlock :exec
-INSERT INTO bitcoin_blocks ("block_height","block_hash","version","merkle_root","prev_block_hash","timestamp","bits","nonce") VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
-`
-
-type InsertBlockParams struct {
-	BlockHeight   int32
-	BlockHash     string
-	Version       int32
-	MerkleRoot    string
-	PrevBlockHash string
-	Timestamp     pgtype.Timestamptz
-	Bits          int64
-	Nonce         int64
-}
-
-func (q *Queries) InsertBlock(ctx context.Context, arg InsertBlockParams) error {
-	_, err := q.db.Exec(ctx, insertBlock,
-		arg.BlockHeight,
-		arg.BlockHash,
-		arg.Version,
-		arg.MerkleRoot,
-		arg.PrevBlockHash,
-		arg.Timestamp,
-		arg.Bits,
-		arg.Nonce,
-	)
-	return err
-}
-
-const insertTransaction = `-- name: InsertTransaction :exec
-INSERT INTO bitcoin_transactions ("tx_hash","version","locktime","block_height","block_hash","idx") VALUES ($1, $2, $3, $4, $5, $6)
-`
-
-type InsertTransactionParams struct {
-	TxHash      string
-	Version     int32
-	Locktime    int64
-	BlockHeight int32
-	BlockHash   string
-	Idx         int32
-}
-
-func (q *Queries) InsertTransaction(ctx context.Context, arg InsertTransactionParams) error {
-	_, err := q.db.Exec(ctx, insertTransaction,
-		arg.TxHash,
-		arg.Version,
-		arg.Locktime,
-		arg.BlockHeight,
-		arg.BlockHash,
-		arg.Idx,
-	)
-	return err
-}
-
-const insertTransactionTxIn = `-- name: InsertTransactionTxIn :exec
-WITH update_txout AS (
-	UPDATE "bitcoin_transaction_txouts"
-	SET "is_spent" = true
-	WHERE "tx_hash" = $3 AND "tx_idx" = $4 AND "is_spent" = false -- TODO: should throw an error if already spent
-	RETURNING "pkscript"
-)
-INSERT INTO bitcoin_transaction_txins ("tx_hash","tx_idx","prevout_tx_hash","prevout_tx_idx","prevout_pkscript","scriptsig","witness","sequence") 
-VALUES ($1, $2, $3, $4, (SELECT "pkscript" FROM update_txout), $5, $6, $7)
-`
-
-type InsertTransactionTxInParams struct {
-	TxHash        string
-	TxIdx         int32
-	PrevoutTxHash string
-	PrevoutTxIdx  int32
-	Scriptsig     string
-	Witness       pgtype.Text
-	Sequence      int64
-}
-
-func (q *Queries) InsertTransactionTxIn(ctx context.Context, arg InsertTransactionTxInParams) error {
-	_, err := q.db.Exec(ctx, insertTransactionTxIn,
-		arg.TxHash,
-		arg.TxIdx,
-		arg.PrevoutTxHash,
-		arg.PrevoutTxIdx,
-		arg.Scriptsig,
-		arg.Witness,
-		arg.Sequence,
-	)
-	return err
-}
-
-const insertTransactionTxOut = `-- name: InsertTransactionTxOut :exec
-INSERT INTO bitcoin_transaction_txouts ("tx_hash","tx_idx","pkscript","value") VALUES ($1, $2, $3, $4)
-`
-
-type InsertTransactionTxOutParams struct {
-	TxHash   string
-	TxIdx    int32
-	Pkscript string
-	Value    int64
-}
-
-func (q *Queries) InsertTransactionTxOut(ctx context.Context, arg InsertTransactionTxOutParams) error {
-	_, err := q.db.Exec(ctx, insertTransactionTxOut,
-		arg.TxHash,
-		arg.TxIdx,
-		arg.Pkscript,
-		arg.Value,
-	)
-	return err
-}
-
-const revertData = `-- name: RevertData :exec
-WITH delete_tx AS (
-	DELETE FROM "bitcoin_transactions" WHERE "block_height" >= $1
-	RETURNING "tx_hash"
-), delete_txin AS (
-	DELETE FROM  "bitcoin_transaction_txins" WHERE "tx_hash" = ANY(SELECT "tx_hash" FROM delete_tx)
-	RETURNING "prevout_tx_hash", "prevout_tx_idx"
-), delete_txout AS (
-	DELETE FROM  "bitcoin_transaction_txouts" WHERE "tx_hash" = ANY(SELECT "tx_hash" FROM delete_tx)
-	RETURNING "tx_hash", "tx_idx"
-), revert_txout_spent AS (
-	UPDATE "bitcoin_transaction_txouts"
-	SET "is_spent" = false
-	WHERE 
-		("tx_hash", "tx_idx") IN (SELECT "prevout_tx_hash", "prevout_tx_idx" FROM delete_txin) AND 
-		("tx_hash", "tx_idx") NOT IN (SELECT "tx_hash", "tx_idx" FROM delete_txout) -- avoid to modified same row twice (modified the same row twice in a single statement is not supported)
-	RETURNING NULL
-)
-DELETE FROM "bitcoin_blocks" WHERE "bitcoin_blocks"."block_height" >= $1
-`
-
-func (q *Queries) RevertData(ctx context.Context, fromHeight int32) error {
-	_, err := q.db.Exec(ctx, revertData, fromHeight)
-	return err
-}

modules/bitcoin/repository/postgres/gen/info.sql.go

@@ -1,51 +0,0 @@
-// Code generated by sqlc. DO NOT EDIT.
-// versions:
-//   sqlc v1.26.0
-// source: info.sql
-
-package gen
-
-import (
-	"context"
-)
-
-const getCurrentDBVersion = `-- name: GetCurrentDBVersion :one
-SELECT "version" FROM bitcoin_indexer_db_version ORDER BY id DESC LIMIT 1
-`
-
-func (q *Queries) GetCurrentDBVersion(ctx context.Context) (int32, error) {
-	row := q.db.QueryRow(ctx, getCurrentDBVersion)
-	var version int32
-	err := row.Scan(&version)
-	return version, err
-}
-
-const getCurrentIndexerStats = `-- name: GetCurrentIndexerStats :one
-SELECT "client_version", "network" FROM bitcoin_indexer_stats ORDER BY id DESC LIMIT 1
-`
-
-type GetCurrentIndexerStatsRow struct {
-	ClientVersion string
-	Network       string
-}
-
-func (q *Queries) GetCurrentIndexerStats(ctx context.Context) (GetCurrentIndexerStatsRow, error) {
-	row := q.db.QueryRow(ctx, getCurrentIndexerStats)
-	var i GetCurrentIndexerStatsRow
-	err := row.Scan(&i.ClientVersion, &i.Network)
-	return i, err
-}
-
-const updateIndexerStats = `-- name: UpdateIndexerStats :exec
-INSERT INTO bitcoin_indexer_stats (client_version, network) VALUES ($1, $2)
-`
-
-type UpdateIndexerStatsParams struct {
-	ClientVersion string
-	Network       string
-}
-
-func (q *Queries) UpdateIndexerStats(ctx context.Context, arg UpdateIndexerStatsParams) error {
-	_, err := q.db.Exec(ctx, updateIndexerStats, arg.ClientVersion, arg.Network)
-	return err
-}

modules/bitcoin/repository/postgres/gen/models.go

@@ -1,61 +0,0 @@
-// Code generated by sqlc. DO NOT EDIT.
-// versions:
-//   sqlc v1.26.0
-
-package gen
-
-import (
-	"github.com/jackc/pgx/v5/pgtype"
-)
-
-type BitcoinBlock struct {
-	BlockHeight   int32
-	BlockHash     string
-	Version       int32
-	MerkleRoot    string
-	PrevBlockHash string
-	Timestamp     pgtype.Timestamptz
-	Bits          int64
-	Nonce         int64
-}
-
-type BitcoinIndexerDbVersion struct {
-	Id        int64
-	Version   int32
-	CreatedAt pgtype.Timestamptz
-}
-
-type BitcoinIndexerStat struct {
-	Id            int64
-	ClientVersion string
-	Network       string
-	CreatedAt     pgtype.Timestamptz
-}
-
-type BitcoinTransaction struct {
-	TxHash      string
-	Version     int32
-	Locktime    int64
-	BlockHeight int32
-	BlockHash   string
-	Idx         int32
-}
-
-type BitcoinTransactionTxin struct {
-	TxHash          string
-	TxIdx           int32
-	PrevoutTxHash   string
-	PrevoutTxIdx    int32
-	PrevoutPkscript pgtype.Text
-	Scriptsig       string
-	Witness         pgtype.Text
-	Sequence        int64
-}
-
-type BitcoinTransactionTxout struct {
-	TxHash   string
-	TxIdx    int32
-	Pkscript string
-	Value    int64
-	IsSpent  bool
-}

modules/bitcoin/repository/postgres/info.go

@@ -1,44 +0,0 @@
-package postgres
-
-import (
-	"context"
-
-	"github.com/cockroachdb/errors"
-	"github.com/gaze-network/indexer-network/common"
-	"github.com/gaze-network/indexer-network/common/errs"
-	"github.com/gaze-network/indexer-network/modules/bitcoin/datagateway"
-	"github.com/gaze-network/indexer-network/modules/bitcoin/repository/postgres/gen"
-	"github.com/jackc/pgx/v5"
-)
-
-// Make sure Repository implements the IndexerInformationDataGateway interface
-var _ datagateway.IndexerInformationDataGateway = (*Repository)(nil)
-
-func (r *Repository) GetCurrentDBVersion(ctx context.Context) (int32, error) {
-	version, err := r.queries.GetCurrentDBVersion(ctx)
-	if err != nil {
-		return 0, errors.WithStack(err)
-	}
-	return version, nil
-}
-
-func (r *Repository) GetLatestIndexerStats(ctx context.Context) (string, common.Network, error) {
-	stats, err := r.queries.GetCurrentIndexerStats(ctx)
-	if err != nil {
-		if errors.Is(err, pgx.ErrNoRows) {
-			return "", "", errors.Join(errs.NotFound, err)
-		}
-		return "", "", errors.WithStack(err)
-	}
-	return stats.ClientVersion, common.Network(stats.Network), nil
-}
-
-func (r *Repository) UpdateIndexerStats(ctx context.Context, clientVersion string, network common.Network) error {
-	if err := r.queries.UpdateIndexerStats(ctx, gen.UpdateIndexerStatsParams{
-		ClientVersion: clientVersion,
-		Network:       network.String(),
-	}); err != nil {
-		return errors.WithStack(err)
-	}
-	return nil
-}

modules/bitcoin/repository/postgres/mappers.go

@@ -1,187 +0,0 @@
-package postgres
-
-import (
-	"cmp"
-	"encoding/hex"
-	"slices"
-
-	"github.com/btcsuite/btcd/chaincfg/chainhash"
-	"github.com/cockroachdb/errors"
-	"github.com/gaze-network/indexer-network/common/errs"
-	"github.com/gaze-network/indexer-network/core/types"
-	"github.com/gaze-network/indexer-network/modules/bitcoin/repository/postgres/gen"
-	"github.com/gaze-network/indexer-network/pkg/btcutils"
-	"github.com/jackc/pgx/v5/pgtype"
-)
-
-func mapBlockHeaderTypeToModel(src types.BlockHeader) gen.BitcoinBlock {
-	return gen.BitcoinBlock{
-		BlockHeight:   int32(src.Height),
-		BlockHash:     src.Hash.String(),
-		Version:       src.Version,
-		MerkleRoot:    src.MerkleRoot.String(),
-		PrevBlockHash: src.PrevBlock.String(),
-		Timestamp: pgtype.Timestamptz{
-			Time:  src.Timestamp,
-			Valid: true,
-		},
-		Bits:  int64(src.Bits),
-		Nonce: int64(src.Nonce),
-	}
-}
-
-func mapBlockHeaderModelToType(src gen.BitcoinBlock) (types.BlockHeader, error) {
-	hash, err := chainhash.NewHashFromStr(src.BlockHash)
-	if err != nil {
-		return types.BlockHeader{}, errors.Join(errors.Wrap(err, "failed to parse block hash"), errs.InternalError)
-	}
-	prevHash, err := chainhash.NewHashFromStr(src.PrevBlockHash)
-	if err != nil {
-		return types.BlockHeader{}, errors.Join(errors.Wrap(err, "failed to parse prev block hash"), errs.InternalError)
-	}
-	merkleRoot, err := chainhash.NewHashFromStr(src.MerkleRoot)
-	if err != nil {
-		return types.BlockHeader{}, errors.Join(errors.Wrap(err, "failed to parse merkle root"), errs.InternalError)
-	}
-	return types.BlockHeader{
-		Hash:       *hash,
-		Height:     int64(src.BlockHeight),
-		Version:    src.Version,
-		PrevBlock:  *prevHash,
-		MerkleRoot: *merkleRoot,
-		Timestamp:  src.Timestamp.Time,
-		Bits:       uint32(src.Bits),
-		Nonce:      uint32(src.Nonce),
-	}, nil
-}
-
-func mapBlockTypeToParams(src *types.Block) (gen.InsertBlockParams, []gen.InsertTransactionParams, []gen.InsertTransactionTxOutParams, []gen.InsertTransactionTxInParams) {
-	txs := make([]gen.InsertTransactionParams, 0, len(src.Transactions))
-	txouts := make([]gen.InsertTransactionTxOutParams, 0)
-	txins := make([]gen.InsertTransactionTxInParams, 0)
-	block := gen.InsertBlockParams{
-		BlockHeight:   int32(src.Header.Height),
-		BlockHash:     src.Header.Hash.String(),
-		Version:       src.Header.Version,
-		MerkleRoot:    src.Header.MerkleRoot.String(),
-		PrevBlockHash: src.Header.PrevBlock.String(),
-		Timestamp: pgtype.Timestamptz{
-			Time:  src.Header.Timestamp,
-			Valid: true,
-		},
-		Bits:  int64(src.Header.Bits),
-		Nonce: int64(src.Header.Nonce),
-	}
-	for txIdx, srcTx := range src.Transactions {
-		tx := gen.InsertTransactionParams{
-			TxHash:      srcTx.TxHash.String(),
-			Version:     srcTx.Version,
-			Locktime:    int64(srcTx.LockTime),
-			BlockHeight: int32(src.Header.Height),
-			BlockHash:   src.Header.Hash.String(),
-			Idx:         int32(txIdx),
-		}
-		txs = append(txs, tx)
-
-		for idx, txin := range srcTx.TxIn {
-			var witness pgtype.Text
-			if len(txin.Witness) > 0 {
-				witness = pgtype.Text{
-					String: btcutils.WitnessToString(txin.Witness),
-					Valid:  true,
-				}
-			}
-			txins = append(txins, gen.InsertTransactionTxInParams{
-				TxHash:        tx.TxHash,
-				TxIdx:         int32(idx),
-				PrevoutTxHash: txin.PreviousOutTxHash.String(),
-				PrevoutTxIdx:  int32(txin.PreviousOutIndex),
-				Scriptsig:     hex.EncodeToString(txin.SignatureScript),
-				Witness:       witness,
-				Sequence:      int64(txin.Sequence),
-			})
-		}
-
-		for idx, txout := range srcTx.TxOut {
-			txouts = append(txouts, gen.InsertTransactionTxOutParams{
-				TxHash:   tx.TxHash,
-				TxIdx:    int32(idx),
-				Pkscript: hex.EncodeToString(txout.PkScript),
-				Value:    txout.Value,
-			})
-		}
-	}
-	return block, txs, txouts, txins
-}
-
-func mapTransactionModelToType(src gen.BitcoinTransaction, txInModel []gen.BitcoinTransactionTxin, txOutModels []gen.BitcoinTransactionTxout) (types.Transaction, error) {
-	blockHash, err := chainhash.NewHashFromStr(src.BlockHash)
-	if err != nil {
-		return types.Transaction{}, errors.Wrap(err, "failed to parse block hash")
-	}
-
-	txHash, err := chainhash.NewHashFromStr(src.TxHash)
-	if err != nil {
-		return types.Transaction{}, errors.Wrap(err, "failed to parse tx hash")
-	}
-
-	// Sort txins and txouts by index (Asc)
-	slices.SortFunc(txOutModels, func(i, j gen.BitcoinTransactionTxout) int {
-		return cmp.Compare(i.TxIdx, j.TxIdx)
-	})
-	slices.SortFunc(txInModel, func(i, j gen.BitcoinTransactionTxin) int {
-		return cmp.Compare(i.TxIdx, j.TxIdx)
-	})
-
-	txIns := make([]*types.TxIn, 0, len(txInModel))
-	txOuts := make([]*types.TxOut, 0, len(txOutModels))
-	for _, txInModel := range txInModel {
-		scriptsig, err := hex.DecodeString(txInModel.Scriptsig)
-		if err != nil {
-			return types.Transaction{}, errors.Wrap(err, "failed to decode scriptsig")
-		}
-
-		prevoutTxHash, err := chainhash.NewHashFromStr(txInModel.PrevoutTxHash)
-		if err != nil {
-			return types.Transaction{}, errors.Wrap(err, "failed to parse prevout tx hash")
-		}
-
-		var witness [][]byte
-		if txInModel.Witness.Valid {
-			w, err := btcutils.WitnessFromString(txInModel.Witness.String)
-			if err != nil {
-				return types.Transaction{}, errors.Wrap(err, "failed to parse witness from hex string")
-			}
-			witness = w
-		}
-
-		txIns = append(txIns, &types.TxIn{
-			SignatureScript:   scriptsig,
-			Witness:           witness,
-			Sequence:          uint32(txInModel.Sequence),
-			PreviousOutIndex:  uint32(txInModel.PrevoutTxIdx),
-			PreviousOutTxHash: *prevoutTxHash,
-		})
-	}
-	for _, txOutModel := range txOutModels {
-		pkscript, err := hex.DecodeString(txOutModel.Pkscript)
-		if err != nil {
-			return types.Transaction{}, errors.Wrap(err, "failed to decode pkscript")
-		}
-		txOuts = append(txOuts, &types.TxOut{
-			PkScript: pkscript,
-			Value:    txOutModel.Value,
-		})
-	}
-
-	return types.Transaction{
-		BlockHeight: int64(src.BlockHeight),
-		BlockHash:   *blockHash,
-		Index:       uint32(src.Idx),
-		TxHash:      *txHash,
-		Version:     src.Version,
-		LockTime:    uint32(src.Locktime),
-		TxIn:        txIns,
-		TxOut:       txOuts,
-	}, nil
-}

modules/bitcoin/repository/postgres/postgres.go

@@ -1,22 +0,0 @@
-package postgres
-
-import (
-	"github.com/gaze-network/indexer-network/internal/postgres"
-	"github.com/gaze-network/indexer-network/modules/bitcoin/datagateway"
-	"github.com/gaze-network/indexer-network/modules/bitcoin/repository/postgres/gen"
-)
-
-// Make sure Repository implements the BitcoinDataGateway interface
-var _ datagateway.BitcoinDataGateway = (*Repository)(nil)
-
-type Repository struct {
-	db      postgres.DB
-	queries *gen.Queries
-}
-
-func NewRepository(db postgres.DB) *Repository {
-	return &Repository{
-		db:      db,
-		queries: gen.New(db),
-	}
-}

modules/bitcoin/repository/postgres/transaction.go

@@ -1,35 +0,0 @@
-package postgres
-
-import (
-	"context"
-
-	"github.com/btcsuite/btcd/chaincfg/chainhash"
-	"github.com/cockroachdb/errors"
-	"github.com/gaze-network/indexer-network/common/errs"
-	"github.com/gaze-network/indexer-network/core/types"
-	"github.com/jackc/pgx/v5"
-)
-
-func (r *Repository) GetTransactionByHash(ctx context.Context, txHash chainhash.Hash) (*types.Transaction, error) {
-	model, err := r.queries.GetTransactionByHash(ctx, txHash.String())
-	if err != nil {
-		if errors.Is(err, pgx.ErrNoRows) {
-			return nil, errors.Join(errs.NotFound, err)
-		}
-		return nil, errors.Wrap(err, "failed to get transaction by hash")
-	}
-	txIns, err := r.queries.GetTransactionTxInsByTxHashes(ctx, []string{txHash.String()})
-	if err != nil {
-		return nil, errors.Wrap(err, "failed to get transaction txins by tx hashes")
-	}
-	txOuts, err := r.queries.GetTransactionTxOutsByTxHashes(ctx, []string{txHash.String()})
-	if err != nil && !errors.Is(err, pgx.ErrNoRows) {
-		return nil, errors.Wrap(err, "failed to get transaction txouts by tx hashes")
-	}
-
-	tx, err := mapTransactionModelToType(model, txIns, txOuts)
-	if err != nil {
-		return nil, errors.Wrap(err, "failed to map transaction model to type")
-	}
-	return &tx, nil
-}

modules/bitcoin/types.go

@@ -1 +0,0 @@
-package bitcoin

modules/brc20/api/httphandler/get_balances_by_address.go

@@ -0,0 +1,115 @@
+package httphandler
+
+import (
+	"slices"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common"
+	"github.com/gaze-network/indexer-network/common/errs"
+	"github.com/gaze-network/indexer-network/pkg/btcutils"
+	"github.com/gaze-network/indexer-network/pkg/decimals"
+	"github.com/gofiber/fiber/v2"
+	"github.com/holiman/uint256"
+	"github.com/samber/lo"
+)
+
+type getBalancesByAddressRequest struct {
+	Wallet      string `params:"wallet"`
+	Id          string `query:"id"`
+	BlockHeight uint64 `query:"blockHeight"`
+}
+
+func (r getBalancesByAddressRequest) Validate() error {
+	var errList []error
+	if r.Wallet == "" {
+		errList = append(errList, errors.New("'wallet' is required"))
+	}
+	return errs.WithPublicMessage(errors.Join(errList...), "validation error")
+}
+
+type balanceExtend struct {
+	Transferable *uint256.Int `json:"transferable"`
+	Available    *uint256.Int `json:"available"`
+}
+
+type balance struct {
+	Amount   *uint256.Int  `json:"amount"`
+	Id       string        `json:"id"`
+	Name     string        `json:"name"`
+	Symbol   string        `json:"symbol"`
+	Decimals uint16        `json:"decimals"`
+	Extend   balanceExtend `json:"extend"`
+}
+
+type getBalancesByAddressResult struct {
+	List        []balance `json:"list"`
+	BlockHeight uint64    `json:"blockHeight"`
+}
+
+type getBalancesByAddressResponse = common.HttpResponse[getBalancesByAddressResult]
+
+func (h *HttpHandler) GetBalancesByAddress(ctx *fiber.Ctx) (err error) {
+	var req getBalancesByAddressRequest
+	if err := ctx.ParamsParser(&req); err != nil {
+		return errors.WithStack(err)
+	}
+	if err := ctx.QueryParser(&req); err != nil {
+		return errors.WithStack(err)
+	}
+	if err := req.Validate(); err != nil {
+		return errors.WithStack(err)
+	}
+
+	pkScript, err := btcutils.ToPkScript(h.network, req.Wallet)
+	if err != nil {
+		return errs.NewPublicError("unable to resolve pkscript from \"wallet\"")
+	}
+
+	blockHeight := req.BlockHeight
+	if blockHeight == 0 {
+		blockHeader, err := h.usecase.GetLatestBlock(ctx.UserContext())
+		if err != nil {
+			return errors.Wrap(err, "error during GetLatestBlock")
+		}
+		blockHeight = uint64(blockHeader.Height)
+	}
+
+	balances, err := h.usecase.GetBalancesByPkScript(ctx.UserContext(), pkScript, blockHeight)
+	if err != nil {
+		return errors.Wrap(err, "error during GetBalancesByPkScript")
+	}
+
+	ticks := lo.Keys(balances)
+	entries, err := h.usecase.GetTickEntryByTickBatch(ctx.UserContext(), ticks)
+	if err != nil {
+		return errors.Wrap(err, "error during GetTickEntryByTickBatch")
+	}
+
+	balanceList := make([]balance, 0, len(balances))
+	for id, b := range balances {
+		entry := entries[id]
+		balanceList = append(balanceList, balance{
+			Amount:   decimals.ToUint256(b.OverallBalance, entry.Decimals),
+			Id:       id,
+			Name:     entry.OriginalTick,
+			Symbol:   entry.Tick,
+			Decimals: entry.Decimals,
+			Extend: balanceExtend{
+				Transferable: decimals.ToUint256(b.OverallBalance.Sub(b.AvailableBalance), entry.Decimals),
+				Available:    decimals.ToUint256(b.AvailableBalance, entry.Decimals),
+			},
+		})
+	}
+	slices.SortFunc(balanceList, func(i, j balance) int {
+		return j.Amount.Cmp(i.Amount)
+	})
+
+	resp := getBalancesByAddressResponse{
+		Result: &getBalancesByAddressResult{
+			BlockHeight: blockHeight,
+			List:        balanceList,
+		},
+	}
+
+	return errors.WithStack(ctx.JSON(resp))
+}

modules/brc20/api/httphandler/get_balances_by_address_batch.go

@@ -0,0 +1,125 @@
+package httphandler
+
+import (
+	"context"
+	"slices"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common"
+	"github.com/gaze-network/indexer-network/common/errs"
+	"github.com/gaze-network/indexer-network/pkg/btcutils"
+	"github.com/gaze-network/indexer-network/pkg/decimals"
+	"github.com/gofiber/fiber/v2"
+	"github.com/samber/lo"
+	"golang.org/x/sync/errgroup"
+)
+
+type getBalancesByAddressBatchRequest struct {
+	Queries []getBalancesByAddressRequest `json:"queries"`
+}
+
+func (r getBalancesByAddressBatchRequest) Validate() error {
+	var errList []error
+	for _, query := range r.Queries {
+		if query.Wallet == "" {
+			errList = append(errList, errors.Errorf("queries[%d]: 'wallet' is required"))
+		}
+	}
+	return errs.WithPublicMessage(errors.Join(errList...), "validation error")
+}
+
+type getBalancesByAddressBatchResult struct {
+	List []*getBalancesByAddressResult `json:"list"`
+}
+
+type getBalancesByAddressBatchResponse = common.HttpResponse[getBalancesByAddressBatchResult]
+
+func (h *HttpHandler) GetBalancesByAddressBatch(ctx *fiber.Ctx) (err error) {
+	var req getBalancesByAddressBatchRequest
+	if err := ctx.BodyParser(&req); err != nil {
+		return errors.WithStack(err)
+	}
+	if err := req.Validate(); err != nil {
+		return errors.WithStack(err)
+	}
+
+	var latestBlockHeight uint64
+	blockHeader, err := h.usecase.GetLatestBlock(ctx.UserContext())
+	if err != nil {
+		return errors.Wrap(err, "error during GetLatestBlock")
+	}
+	latestBlockHeight = uint64(blockHeader.Height)
+
+	processQuery := func(ctx context.Context, query getBalancesByAddressRequest) (*getBalancesByAddressResult, error) {
+		pkScript, err := btcutils.ToPkScript(h.network, query.Wallet)
+		if err != nil {
+			return nil, errs.NewPublicError("unable to resolve pkscript from \"wallet\"")
+		}
+
+		blockHeight := query.BlockHeight
+		if blockHeight == 0 {
+			blockHeight = latestBlockHeight
+		}
+
+		balances, err := h.usecase.GetBalancesByPkScript(ctx, pkScript, blockHeight)
+		if err != nil {
+			return nil, errors.Wrap(err, "error during GetBalancesByPkScript")
+		}
+
+		balanceRuneIds := lo.Keys(balances)
+		entries, err := h.usecase.GetTickEntryByTickBatch(ctx, balanceRuneIds)
+		if err != nil {
+			return nil, errors.Wrap(err, "error during GetTickEntryByTickBatch")
+		}
+
+		balanceList := make([]balance, 0, len(balances))
+		for id, b := range balances {
+			entry := entries[id]
+			balanceList = append(balanceList, balance{
+				Amount:   decimals.ToUint256(b.OverallBalance, entry.Decimals),
+				Id:       id,
+				Name:     entry.OriginalTick,
+				Symbol:   entry.Tick,
+				Decimals: entry.Decimals,
+				Extend: balanceExtend{
+					Transferable: decimals.ToUint256(b.OverallBalance.Sub(b.AvailableBalance), entry.Decimals),
+					Available:    decimals.ToUint256(b.AvailableBalance, entry.Decimals),
+				},
+			})
+		}
+		slices.SortFunc(balanceList, func(i, j balance) int {
+			return j.Amount.Cmp(i.Amount)
+		})
+
+		return &getBalancesByAddressResult{
+			BlockHeight: blockHeight,
+			List:        balanceList,
+		}, nil
+	}
+
+	results := make([]*getBalancesByAddressResult, len(req.Queries))
+	eg, ectx := errgroup.WithContext(ctx.UserContext())
+	for i, query := range req.Queries {
+		i := i
+		query := query
+		eg.Go(func() error {
+			result, err := processQuery(ectx, query)
+			if err != nil {
+				return errors.Wrapf(err, "error during processQuery for query %d", i)
+			}
+			results[i] = result
+			return nil
+		})
+	}
+	if err := eg.Wait(); err != nil {
+		return errors.WithStack(err)
+	}
+
+	resp := getBalancesByAddressBatchResponse{
+		Result: &getBalancesByAddressBatchResult{
+			List: results,
+		},
+	}
+
+	return errors.WithStack(ctx.JSON(resp))
+}

modules/brc20/api/httphandler/get_current_block.go

@@ -0,0 +1,49 @@
+package httphandler
+
+import (
+	"github.com/Cleverse/go-utilities/utils"
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common"
+	"github.com/gaze-network/indexer-network/common/errs"
+	"github.com/gaze-network/indexer-network/core/types"
+	"github.com/gofiber/fiber/v2"
+)
+
+// TODO: use modules/brc20/constants.go
+var startingBlockHeader = map[common.Network]types.BlockHeader{
+	common.NetworkMainnet: {
+		Height: 767429,
+		Hash:   *utils.Must(chainhash.NewHashFromStr("00000000000000000002b35aef66eb15cd2b232a800f75a2f25cedca4cfe52c4")),
+	},
+	common.NetworkTestnet: {
+		Height: 2413342,
+		Hash:   *utils.Must(chainhash.NewHashFromStr("00000000000022e97030b143af785de812f836dd0651b6ac2b7dd9e90dc9abf9")),
+	},
+}
+
+type getCurrentBlockResult struct {
+	Hash   string `json:"hash"`
+	Height int64  `json:"height"`
+}
+
+type getCurrentBlockResponse = common.HttpResponse[getCurrentBlockResult]
+
+func (h *HttpHandler) GetCurrentBlock(ctx *fiber.Ctx) (err error) {
+	blockHeader, err := h.usecase.GetLatestBlock(ctx.UserContext())
+	if err != nil {
+		if !errors.Is(err, errs.NotFound) {
+			return errors.Wrap(err, "error during get latest block")
+		}
+		blockHeader = startingBlockHeader[h.network]
+	}
+
+	resp := getCurrentBlockResponse{
+		Result: &getCurrentBlockResult{
+			Hash:   blockHeader.Hash.String(),
+			Height: blockHeader.Height,
+		},
+	}
+
+	return errors.WithStack(ctx.JSON(resp))
+}

modules/brc20/api/httphandler/get_holders.go

@@ -0,0 +1,107 @@
+package httphandler
+
+import (
+	"encoding/hex"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common"
+	"github.com/gaze-network/indexer-network/common/errs"
+	"github.com/gaze-network/indexer-network/pkg/btcutils"
+	"github.com/gaze-network/indexer-network/pkg/decimals"
+	"github.com/gofiber/fiber/v2"
+	"github.com/holiman/uint256"
+)
+
+type getHoldersRequest struct {
+	Id          string `params:"id"`
+	BlockHeight uint64 `query:"blockHeight"`
+}
+
+func (r getHoldersRequest) Validate() error {
+	var errList []error
+	return errs.WithPublicMessage(errors.Join(errList...), "validation error")
+}
+
+type holdingBalanceExtend struct {
+	Transferable *uint256.Int `json:"transferable"`
+	Available    *uint256.Int `json:"available"`
+}
+
+type holdingBalance struct {
+	Address  string               `json:"address"`
+	PkScript string               `json:"pkScript"`
+	Amount   *uint256.Int         `json:"amount"`
+	Percent  float64              `json:"percent"`
+	Extend   holdingBalanceExtend `json:"extend"`
+}
+
+type getHoldersResult struct {
+	BlockHeight  uint64           `json:"blockHeight"`
+	TotalSupply  *uint256.Int     `json:"totalSupply"`
+	MintedAmount *uint256.Int     `json:"mintedAmount"`
+	Decimals     uint16           `json:"decimals"`
+	List         []holdingBalance `json:"list"`
+}
+
+type getHoldersResponse = common.HttpResponse[getHoldersResult]
+
+func (h *HttpHandler) GetHolders(ctx *fiber.Ctx) (err error) {
+	var req getHoldersRequest
+	if err := ctx.ParamsParser(&req); err != nil {
+		return errors.WithStack(err)
+	}
+	if err := ctx.QueryParser(&req); err != nil {
+		return errors.WithStack(err)
+	}
+	if err := req.Validate(); err != nil {
+		return errors.WithStack(err)
+	}
+
+	blockHeight := req.BlockHeight
+	if blockHeight == 0 {
+		blockHeader, err := h.usecase.GetLatestBlock(ctx.UserContext())
+		if err != nil {
+			return errors.Wrap(err, "error during GetLatestBlock")
+		}
+		blockHeight = uint64(blockHeader.Height)
+	}
+
+	entry, err := h.usecase.GetTickEntryByTickAndHeight(ctx.UserContext(), req.Id, blockHeight)
+	if err != nil {
+		return errors.Wrap(err, "error during GetTickEntryByTickAndHeight")
+	}
+	holdingBalances, err := h.usecase.GetBalancesByTick(ctx.UserContext(), req.Id, blockHeight)
+	if err != nil {
+		return errors.Wrap(err, "error during GetBalancesByTick")
+	}
+
+	list := make([]holdingBalance, 0, len(holdingBalances))
+	for _, balance := range holdingBalances {
+		address, err := btcutils.PkScriptToAddress(balance.PkScript, h.network)
+		if err != nil {
+			return errors.Wrapf(err, "can't convert pkscript(%x) to address", balance.PkScript)
+		}
+		percent := balance.OverallBalance.Div(entry.TotalSupply)
+		list = append(list, holdingBalance{
+			Address:  address,
+			PkScript: hex.EncodeToString(balance.PkScript),
+			Amount:   decimals.ToUint256(balance.OverallBalance, entry.Decimals),
+			Percent:  percent.InexactFloat64(),
+			Extend: holdingBalanceExtend{
+				Transferable: decimals.ToUint256(balance.OverallBalance.Sub(balance.AvailableBalance), entry.Decimals),
+				Available:    decimals.ToUint256(balance.AvailableBalance, entry.Decimals),
+			},
+		})
+	}
+
+	resp := getHoldersResponse{
+		Result: &getHoldersResult{
+			BlockHeight:  blockHeight,
+			TotalSupply:  decimals.ToUint256(entry.TotalSupply, entry.Decimals),  // TODO: convert to wei
+			MintedAmount: decimals.ToUint256(entry.MintedAmount, entry.Decimals), // TODO: convert to wei
+			List:         list,
+		},
+	}
+
+	return errors.WithStack(ctx.JSON(resp))
+}

modules/brc20/api/httphandler/get_token_info.go

@@ -0,0 +1,150 @@
+package httphandler
+
+import (
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common"
+	"github.com/gaze-network/indexer-network/common/errs"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/entity"
+	"github.com/gaze-network/indexer-network/pkg/btcutils"
+	"github.com/gaze-network/indexer-network/pkg/decimals"
+	"github.com/gofiber/fiber/v2"
+	"github.com/holiman/uint256"
+	"github.com/samber/lo"
+	"golang.org/x/sync/errgroup"
+)
+
+type getTokenInfoRequest struct {
+	Id          string `params:"id"`
+	BlockHeight uint64 `query:"blockHeight"`
+}
+
+func (r getTokenInfoRequest) Validate() error {
+	var errList []error
+	return errs.WithPublicMessage(errors.Join(errList...), "validation error")
+}
+
+type tokenInfoExtend struct {
+	DeployedBy              string       `json:"deployedBy"`
+	LimitPerMint            *uint256.Int `json:"limitPerMint"`
+	DeployInscriptionId     string       `json:"deployInscriptionId"`
+	DeployInscriptionNumber int64        `json:"deployInscriptionNumber"`
+	InscriptionStartNumber  int64        `json:"inscriptionStartNumber"`
+	InscriptionEndNumber    int64        `json:"inscriptionEndNumber"`
+}
+
+type getTokenInfoResult struct {
+	Id                string          `json:"id"`
+	Name              string          `json:"name"`
+	Symbol            string          `json:"symbol"`
+	TotalSupply       *uint256.Int    `json:"totalSupply"`
+	CirculatingSupply *uint256.Int    `json:"circulatingSupply"`
+	MintedAmount      *uint256.Int    `json:"mintedAmount"`
+	BurnedAmount      *uint256.Int    `json:"burnedAmount"`
+	Decimals          uint16          `json:"decimals"`
+	DeployedAt        uint64          `json:"deployedAt"`
+	DeployedAtHeight  uint64          `json:"deployedAtHeight"`
+	CompletedAt       *uint64         `json:"completedAt"`
+	CompletedAtHeight *uint64         `json:"completedAtHeight"`
+	HoldersCount      int             `json:"holdersCount"`
+	Extend            tokenInfoExtend `json:"extend"`
+}
+
+type getTokenInfoResponse = common.HttpResponse[getTokenInfoResult]
+
+func (h *HttpHandler) GetTokenInfo(ctx *fiber.Ctx) (err error) {
+	var req getTokenInfoRequest
+	if err := ctx.ParamsParser(&req); err != nil {
+		return errors.WithStack(err)
+	}
+	if err := ctx.QueryParser(&req); err != nil {
+		return errors.WithStack(err)
+	}
+	if err := req.Validate(); err != nil {
+		return errors.WithStack(err)
+	}
+
+	blockHeight := req.BlockHeight
+	if blockHeight == 0 {
+		blockHeader, err := h.usecase.GetLatestBlock(ctx.UserContext())
+		if err != nil {
+			return errors.Wrap(err, "error during GetLatestBlock")
+		}
+		blockHeight = uint64(blockHeader.Height)
+	}
+
+	group, groupctx := errgroup.WithContext(ctx.UserContext())
+	var (
+		entry                                         *entity.TickEntry
+		firstInscriptionNumber, lastInscriptionNumber int64
+		deployEvent                                   *entity.EventDeploy
+		holdingBalances                               []*entity.Balance
+	)
+	group.Go(func() error {
+		deployEvent, err = h.usecase.GetDeployEventByTick(groupctx, req.Id)
+		if err != nil {
+			return errors.Wrap(err, "error during GetDeployEventByTick")
+		}
+		return nil
+	})
+	group.Go(func() error {
+		// TODO: at block height to parameter.
+		firstInscriptionNumber, lastInscriptionNumber, err = h.usecase.GetFirstLastInscriptionNumberByTick(groupctx, req.Id)
+		if err != nil {
+			return errors.Wrap(err, "error during GetFirstLastInscriptionNumberByTick")
+		}
+		return nil
+	})
+	group.Go(func() error {
+		entry, err = h.usecase.GetTickEntryByTickAndHeight(groupctx, req.Id, blockHeight)
+		if err != nil {
+			return errors.Wrap(err, "error during GetTickEntryByTickAndHeight")
+		}
+		return nil
+	})
+	group.Go(func() error {
+		balances, err := h.usecase.GetBalancesByTick(groupctx, req.Id, blockHeight)
+		if err != nil {
+			return errors.Wrap(err, "error during GetBalancesByRuneId")
+		}
+		holdingBalances = lo.Filter(balances, func(b *entity.Balance, _ int) bool {
+			return !b.OverallBalance.IsZero()
+		})
+		return nil
+	})
+	if err := group.Wait(); err != nil {
+		return errors.WithStack(err)
+	}
+
+	address, err := btcutils.PkScriptToAddress(deployEvent.PkScript, h.network)
+	if err != nil {
+		return errors.Wrapf(err, `error during PkScriptToAddress for pkscript: %x, network: %v`, deployEvent.PkScript, h.network)
+	}
+
+	resp := getTokenInfoResponse{
+		Result: &getTokenInfoResult{
+			Id:                entry.Tick,
+			Name:              entry.OriginalTick,
+			Symbol:            entry.Tick,
+			TotalSupply:       decimals.ToUint256(entry.TotalSupply, entry.Decimals),
+			CirculatingSupply: decimals.ToUint256(entry.MintedAmount.Sub(entry.BurnedAmount), entry.Decimals),
+			MintedAmount:      decimals.ToUint256(entry.MintedAmount, entry.Decimals),
+			BurnedAmount:      decimals.ToUint256(entry.BurnedAmount, entry.Decimals),
+			Decimals:          entry.Decimals,
+			DeployedAt:        uint64(entry.DeployedAt.Unix()),
+			DeployedAtHeight:  entry.DeployedAtHeight,
+			CompletedAt:       lo.Ternary(entry.CompletedAt.IsZero(), nil, lo.ToPtr(uint64(entry.CompletedAt.Unix()))),
+			CompletedAtHeight: lo.Ternary(entry.CompletedAtHeight == 0, nil, lo.ToPtr(entry.CompletedAtHeight)),
+			HoldersCount:      len(holdingBalances),
+			Extend: tokenInfoExtend{
+				DeployedBy:              address,
+				LimitPerMint:            decimals.ToUint256(entry.LimitPerMint, entry.Decimals),
+				DeployInscriptionId:     deployEvent.InscriptionId.String(),
+				DeployInscriptionNumber: deployEvent.InscriptionNumber,
+				InscriptionStartNumber:  lo.Ternary(firstInscriptionNumber < 0, deployEvent.InscriptionNumber, firstInscriptionNumber),
+				InscriptionEndNumber:    lo.Ternary(lastInscriptionNumber < 0, deployEvent.InscriptionNumber, lastInscriptionNumber),
+			},
+		},
+	}
+
+	return errors.WithStack(ctx.JSON(resp))
+}

modules/brc20/api/httphandler/get_transactions.go

@@ -0,0 +1,454 @@
+package httphandler
+
+import (
+	"bytes"
+	"cmp"
+	"encoding/hex"
+	"slices"
+	"strings"
+
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common"
+	"github.com/gaze-network/indexer-network/common/errs"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/entity"
+	"github.com/gaze-network/indexer-network/pkg/btcutils"
+	"github.com/gaze-network/indexer-network/pkg/decimals"
+	"github.com/gofiber/fiber/v2"
+	"github.com/holiman/uint256"
+	"github.com/samber/lo"
+	"github.com/shopspring/decimal"
+	"golang.org/x/sync/errgroup"
+)
+
+var ops = []string{"inscribe-deploy", "inscribe-mint", "inscribe-transfer", "transfer-transfer"}
+
+type getTransactionsRequest struct {
+	Wallet      string `query:"wallet"`
+	Id          string `query:"id"`
+	BlockHeight uint64 `query:"blockHeight"`
+	Op          string `query:"op"`
+}
+
+func (r getTransactionsRequest) Validate() error {
+	var errList []error
+	if r.Op != "" {
+		if !lo.Contains(ops, r.Op) {
+			errList = append(errList, errors.Errorf("invalid 'op' value: %s, supported values: %s", r.Op, strings.Join(ops, ", ")))
+		}
+	}
+	return errs.WithPublicMessage(errors.Join(errList...), "validation error")
+}
+
+type txOpDeployArg struct {
+	Op       string          `json:"op"`
+	Tick     string          `json:"tick"`
+	Max      decimal.Decimal `json:"max"`
+	Lim      decimal.Decimal `json:"lim"`
+	Dec      uint16          `json:"dec"`
+	SelfMint bool            `json:"self_mint"`
+}
+
+type txOpGeneralArg struct {
+	Op     string          `json:"op"`
+	Tick   string          `json:"tick"`
+	Amount decimal.Decimal `json:"amt"`
+}
+
+type txOperation[T any] struct {
+	InscriptionId     string `json:"inscriptionId"`
+	InscriptionNumber int64  `json:"inscriptionNumber"`
+	Op                string `json:"op"`
+	Args              T      `json:"args"`
+}
+
+type txOperationsDeploy struct {
+	txOperation[txOpDeployArg]
+	Address string `json:"address"`
+}
+
+type txOperationsMint struct {
+	txOperation[txOpGeneralArg]
+	Address string `json:"address"`
+}
+
+type txOperationsInscribeTransfer struct {
+	txOperation[txOpGeneralArg]
+	Address     string `json:"address"`
+	OutputIndex uint32 `json:"outputIndex"`
+	Sats        uint64 `json:"sats"`
+}
+
+type txOperationsTransferTransfer struct {
+	txOperation[txOpGeneralArg]
+	FromAddress string `json:"fromAddress"`
+	ToAddress   string `json:"toAddress"`
+}
+
+type transactionExtend struct {
+	Operations []any `json:"operations"`
+}
+
+type amountWithDecimal struct {
+	Amount   *uint256.Int `json:"amount"`
+	Decimals uint16       `json:"decimals"`
+}
+
+type txInputOutput struct {
+	PkScript string       `json:"pkScript"`
+	Address  string       `json:"address"`
+	Id       string       `json:"id"`
+	Amount   *uint256.Int `json:"amount"`
+	Decimals uint16       `json:"decimals"`
+	Index    uint32       `json:"index"`
+}
+
+type transaction struct {
+	TxHash      chainhash.Hash               `json:"txHash"`
+	BlockHeight uint64                       `json:"blockHeight"`
+	Index       uint32                       `json:"index"`
+	Timestamp   int64                        `json:"timestamp"`
+	Inputs      []txInputOutput              `json:"inputs"`
+	Outputs     []txInputOutput              `json:"outputs"`
+	Mints       map[string]amountWithDecimal `json:"mints"`
+	Burns       map[string]amountWithDecimal `json:"burns"`
+	Extend      transactionExtend            `json:"extend"`
+}
+
+type getTransactionsResult struct {
+	List []transaction `json:"list"`
+}
+
+type getTransactionsResponse = common.HttpResponse[getTransactionsResult]
+
+func (h *HttpHandler) GetTransactions(ctx *fiber.Ctx) (err error) {
+	var req getTransactionsRequest
+	if err := ctx.QueryParser(&req); err != nil {
+		return errors.WithStack(err)
+	}
+	if err := req.Validate(); err != nil {
+		return errors.WithStack(err)
+	}
+
+	var pkScript []byte
+	if req.Wallet != "" {
+		pkScript, err = btcutils.ToPkScript(h.network, req.Wallet)
+		if err != nil {
+			return errs.NewPublicError("unable to resolve pkscript from \"wallet\"")
+		}
+	}
+
+	blockHeight := req.BlockHeight
+	// set blockHeight to the latest block height blockHeight, pkScript, and runeId are not provided
+	if blockHeight == 0 && pkScript == nil && req.Id == "" {
+		blockHeader, err := h.usecase.GetLatestBlock(ctx.UserContext())
+		if err != nil {
+			return errors.Wrap(err, "error during GetLatestBlock")
+		}
+		blockHeight = uint64(blockHeader.Height)
+	}
+
+	var (
+		deployEvents           []*entity.EventDeploy
+		mintEvents             []*entity.EventMint
+		transferTransferEvents []*entity.EventTransferTransfer
+		inscribeTransferEvents []*entity.EventInscribeTransfer
+	)
+
+	group, groupctx := errgroup.WithContext(ctx.UserContext())
+
+	if req.Op == "" || req.Op == "inscribe-deploy" {
+		group.Go(func() error {
+			events, err := h.usecase.GetDeployEvents(groupctx, pkScript, req.Id, blockHeight)
+			deployEvents = events
+			return errors.Wrap(err, "error during get inscribe-deploy events")
+		})
+	}
+	if req.Op == "" || req.Op == "inscribe-mint" {
+		group.Go(func() error {
+			events, err := h.usecase.GetMintEvents(groupctx, pkScript, req.Id, blockHeight)
+			mintEvents = events
+			return errors.Wrap(err, "error during get inscribe-mint events")
+		})
+	}
+	if req.Op == "" || req.Op == "transfer-transfer" {
+		group.Go(func() error {
+			events, err := h.usecase.GetTransferTransferEvents(groupctx, pkScript, req.Id, blockHeight)
+			transferTransferEvents = events
+			return errors.Wrap(err, "error during get transfer-transfer events")
+		})
+	}
+	if req.Op == "" || req.Op == "inscribe-transfer" {
+		group.Go(func() error {
+			events, err := h.usecase.GetInscribeTransferEvents(groupctx, pkScript, req.Id, blockHeight)
+			inscribeTransferEvents = events
+			return errors.Wrap(err, "error during get inscribe-transfer events")
+		})
+	}
+	if err := group.Wait(); err != nil {
+		return errors.WithStack(err)
+	}
+
+	allTicks := make([]string, 0, len(deployEvents)+len(mintEvents)+len(transferTransferEvents)+len(inscribeTransferEvents))
+	allTicks = append(allTicks, lo.Map(deployEvents, func(event *entity.EventDeploy, _ int) string { return event.Tick })...)
+	allTicks = append(allTicks, lo.Map(mintEvents, func(event *entity.EventMint, _ int) string { return event.Tick })...)
+	allTicks = append(allTicks, lo.Map(transferTransferEvents, func(event *entity.EventTransferTransfer, _ int) string { return event.Tick })...)
+	allTicks = append(allTicks, lo.Map(inscribeTransferEvents, func(event *entity.EventInscribeTransfer, _ int) string { return event.Tick })...)
+	entries, err := h.usecase.GetTickEntryByTickBatch(ctx.UserContext(), lo.Uniq(allTicks))
+	if err != nil {
+		return errors.Wrap(err, "error during GetTickEntryByTickBatch")
+	}
+
+	rawTxList := make([]transaction, 0, len(deployEvents)+len(mintEvents)+len(transferTransferEvents)+len(inscribeTransferEvents))
+
+	// Deploy events
+	for _, event := range deployEvents {
+		address, err := btcutils.PkScriptToAddress(event.PkScript, h.network)
+		if err != nil {
+			return errors.Wrapf(err, `error during PkScriptToAddress for deploy event %s, pkscript: %x, network: %v`, event.TxHash, event.PkScript, h.network)
+		}
+		respTx := transaction{
+			TxHash:      event.TxHash,
+			BlockHeight: event.BlockHeight,
+			Index:       event.TxIndex,
+			Timestamp:   event.Timestamp.Unix(),
+			Mints:       map[string]amountWithDecimal{},
+			Burns:       map[string]amountWithDecimal{},
+			Extend: transactionExtend{
+				Operations: []any{
+					txOperationsDeploy{
+						txOperation: txOperation[txOpDeployArg]{
+							InscriptionId:     event.InscriptionId.String(),
+							InscriptionNumber: event.InscriptionNumber,
+							Op:                "deploy",
+							Args: txOpDeployArg{
+								Op:       "deploy",
+								Tick:     event.Tick,
+								Max:      event.TotalSupply,
+								Lim:      event.LimitPerMint,
+								Dec:      event.Decimals,
+								SelfMint: event.IsSelfMint,
+							},
+						},
+						Address: address,
+					},
+				},
+			},
+		}
+		rawTxList = append(rawTxList, respTx)
+	}
+
+	// Mint events
+	for _, event := range mintEvents {
+		entry := entries[event.Tick]
+		address, err := btcutils.PkScriptToAddress(event.PkScript, h.network)
+		if err != nil {
+			return errors.Wrapf(err, `error during PkScriptToAddress for deploy event %s, pkscript: %x, network: %v`, event.TxHash, event.PkScript, h.network)
+		}
+		amtWei := decimals.ToUint256(event.Amount, entry.Decimals)
+		respTx := transaction{
+			TxHash:      event.TxHash,
+			BlockHeight: event.BlockHeight,
+			Index:       event.TxIndex,
+			Timestamp:   event.Timestamp.Unix(),
+			Outputs: []txInputOutput{
+				{
+					PkScript: hex.EncodeToString(event.PkScript),
+					Address:  address,
+					Id:       event.Tick,
+					Amount:   amtWei,
+					Decimals: entry.Decimals,
+					Index:    event.TxIndex,
+				},
+			},
+			Mints: map[string]amountWithDecimal{
+				event.Tick: {
+					Amount:   amtWei,
+					Decimals: entry.Decimals,
+				},
+			},
+			Extend: transactionExtend{
+				Operations: []any{
+					txOperationsMint{
+						txOperation: txOperation[txOpGeneralArg]{
+							InscriptionId:     event.InscriptionId.String(),
+							InscriptionNumber: event.InscriptionNumber,
+							Op:                "inscribe-mint",
+							Args: txOpGeneralArg{
+								Op:     "inscribe-mint",
+								Tick:   event.Tick,
+								Amount: event.Amount,
+							},
+						},
+						Address: address,
+					},
+				},
+			},
+		}
+		rawTxList = append(rawTxList, respTx)
+	}
+
+	// Inscribe Transfer events
+	for _, event := range inscribeTransferEvents {
+		address, err := btcutils.PkScriptToAddress(event.PkScript, h.network)
+		if err != nil {
+			return errors.Wrapf(err, `error during PkScriptToAddress for deploy event %s, pkscript: %x, network: %v`, event.TxHash, event.PkScript, h.network)
+		}
+		respTx := transaction{
+			TxHash:      event.TxHash,
+			BlockHeight: event.BlockHeight,
+			Index:       event.TxIndex,
+			Timestamp:   event.Timestamp.Unix(),
+			Mints:       map[string]amountWithDecimal{},
+			Burns:       map[string]amountWithDecimal{},
+			Extend: transactionExtend{
+				Operations: []any{
+					txOperationsInscribeTransfer{
+						txOperation: txOperation[txOpGeneralArg]{
+							InscriptionId:     event.InscriptionId.String(),
+							InscriptionNumber: event.InscriptionNumber,
+							Op:                "inscribe-transfer",
+							Args: txOpGeneralArg{
+								Op:     "inscribe-transfer",
+								Tick:   event.Tick,
+								Amount: event.Amount,
+							},
+						},
+						Address:     address,
+						OutputIndex: event.SatPoint.OutPoint.Index,
+						Sats:        event.SatsAmount,
+					},
+				},
+			},
+		}
+		rawTxList = append(rawTxList, respTx)
+	}
+
+	// Transfer Transfer events
+	for _, event := range transferTransferEvents {
+		entry := entries[event.Tick]
+		amntWei := decimals.ToUint256(event.Amount, entry.Decimals)
+		fromAddress, err := btcutils.PkScriptToAddress(event.FromPkScript, h.network)
+		if err != nil {
+			return errors.Wrapf(err, `error during PkScriptToAddress for deploy event %s, pkscript: %x, network: %v`, event.TxHash, event.FromPkScript, h.network)
+		}
+		toAddress := ""
+		if len(event.ToPkScript) > 0 && !bytes.Equal(event.ToPkScript, []byte{0x6a}) {
+			toAddress, err = btcutils.PkScriptToAddress(event.ToPkScript, h.network)
+			if err != nil {
+				return errors.Wrapf(err, `error during PkScriptToAddress for deploy event %s, pkscript: %x, network: %v`, event.TxHash, event.FromPkScript, h.network)
+			}
+		}
+
+		// if toAddress is empty, it's a burn.
+		burns := map[string]amountWithDecimal{}
+		if len(toAddress) == 0 {
+			burns[event.Tick] = amountWithDecimal{
+				Amount:   amntWei,
+				Decimals: entry.Decimals,
+			}
+		}
+
+		respTx := transaction{
+			TxHash:      event.TxHash,
+			BlockHeight: event.BlockHeight,
+			Index:       event.TxIndex,
+			Timestamp:   event.Timestamp.Unix(),
+			Inputs: []txInputOutput{
+				{
+					PkScript: hex.EncodeToString(event.FromPkScript),
+					Address:  fromAddress,
+					Id:       event.Tick,
+					Amount:   amntWei,
+					Decimals: entry.Decimals,
+					Index:    event.ToOutputIndex,
+				},
+			},
+			Outputs: []txInputOutput{
+				{
+					PkScript: hex.EncodeToString(event.ToPkScript),
+					Address:  fromAddress,
+					Id:       event.Tick,
+					Amount:   amntWei,
+					Decimals: entry.Decimals,
+					Index:    event.ToOutputIndex,
+				},
+			},
+			Mints: map[string]amountWithDecimal{},
+			Burns: burns,
+			Extend: transactionExtend{
+				Operations: []any{
+					txOperationsTransferTransfer{
+						txOperation: txOperation[txOpGeneralArg]{
+							InscriptionId:     event.InscriptionId.String(),
+							InscriptionNumber: event.InscriptionNumber,
+							Op:                "transfer-transfer",
+							Args: txOpGeneralArg{
+								Op:     "transfer-transfer",
+								Tick:   event.Tick,
+								Amount: event.Amount,
+							},
+						},
+						FromAddress: fromAddress,
+						ToAddress:   toAddress,
+					},
+				},
+			},
+		}
+		rawTxList = append(rawTxList, respTx)
+	}
+
+	// merge brc-20 tx events that have the same tx hash
+	txList := make([]transaction, 0, len(rawTxList))
+	groupedTxs := lo.GroupBy(rawTxList, func(tx transaction) chainhash.Hash { return tx.TxHash })
+	for _, txs := range groupedTxs {
+		tx := txs[0]
+		if tx.Mints == nil {
+			tx.Mints = map[string]amountWithDecimal{}
+		}
+		if tx.Burns == nil {
+			tx.Burns = map[string]amountWithDecimal{}
+		}
+		for _, tx2 := range txs[1:] {
+			tx.Inputs = append(tx.Inputs, tx2.Inputs...)
+			tx.Outputs = append(tx.Outputs, tx2.Outputs...)
+			if len(tx2.Mints) > 0 {
+				return errors.Wrap(errs.InvalidState, "transaction can't have multiple mints")
+			}
+			for tick, tx2Ammt := range tx2.Burns {
+				if txAmmt, ok := tx.Burns[tick]; ok {
+					tx.Burns[tick] = amountWithDecimal{
+						Amount:   new(uint256.Int).Add(txAmmt.Amount, tx2Ammt.Amount),
+						Decimals: txAmmt.Decimals,
+					}
+				} else {
+					tx.Burns[tick] = tx2Ammt
+				}
+			}
+			tx.Extend.Operations = append(tx.Extend.Operations, tx2.Extend.Operations...)
+		}
+		slices.SortFunc(tx.Inputs, func(i, j txInputOutput) int {
+			return cmp.Compare(i.Index, j.Index)
+		})
+		slices.SortFunc(tx.Outputs, func(i, j txInputOutput) int {
+			return cmp.Compare(i.Index, j.Index)
+		})
+		txList = append(txList, tx)
+	}
+
+	// sort by block height ASC, then index ASC
+	slices.SortFunc(txList, func(t1, t2 transaction) int {
+		if t1.BlockHeight != t2.BlockHeight {
+			return int(t1.BlockHeight - t2.BlockHeight)
+		}
+		return int(t1.Index - t2.Index)
+	})
+
+	resp := getTransactionsResponse{
+		Result: &getTransactionsResult{
+			List: txList,
+		},
+	}
+
+	return errors.WithStack(ctx.JSON(resp))
+}

modules/brc20/api/httphandler/get_utxos_by_address.go

@@ -0,0 +1,136 @@
+package httphandler
+
+import (
+	"strings"
+
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/btcsuite/btcd/wire"
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common"
+	"github.com/gaze-network/indexer-network/common/errs"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/entity"
+	"github.com/gaze-network/indexer-network/pkg/btcutils"
+	"github.com/gaze-network/indexer-network/pkg/decimals"
+	"github.com/gofiber/fiber/v2"
+	"github.com/holiman/uint256"
+	"github.com/samber/lo"
+)
+
+type getUTXOsByAddressRequest struct {
+	Wallet      string `params:"wallet"`
+	Id          string `query:"id"`
+	BlockHeight uint64 `query:"blockHeight"`
+}
+
+func (r getUTXOsByAddressRequest) Validate() error {
+	var errList []error
+	if r.Wallet == "" {
+		errList = append(errList, errors.New("'wallet' is required"))
+	}
+	return errs.WithPublicMessage(errors.Join(errList...), "validation error")
+}
+
+type transferableInscription struct {
+	Ticker   string       `json:"ticker"`
+	Amount   *uint256.Int `json:"amount"`
+	Decimals uint16       `json:"decimals"`
+}
+
+type utxoExtend struct {
+	TransferableInscriptions []transferableInscription `json:"transferableInscriptions"`
+}
+
+type utxo struct {
+	TxHash      chainhash.Hash `json:"txHash"`
+	OutputIndex uint32         `json:"outputIndex"`
+	Extend      utxoExtend     `json:"extend"`
+}
+
+type getUTXOsByAddressResult struct {
+	List        []utxo `json:"list"`
+	BlockHeight uint64 `json:"blockHeight"`
+}
+
+type getUTXOsByAddressResponse = common.HttpResponse[getUTXOsByAddressResult]
+
+func (h *HttpHandler) GetUTXOsByAddress(ctx *fiber.Ctx) (err error) {
+	var req getUTXOsByAddressRequest
+	if err := ctx.ParamsParser(&req); err != nil {
+		return errors.WithStack(err)
+	}
+	if err := ctx.QueryParser(&req); err != nil {
+		return errors.WithStack(err)
+	}
+	if err := req.Validate(); err != nil {
+		return errors.WithStack(err)
+	}
+
+	pkScript, err := btcutils.ToPkScript(h.network, req.Wallet)
+	if err != nil {
+		return errs.NewPublicError("unable to resolve pkscript from \"wallet\"")
+	}
+
+	blockHeight := req.BlockHeight
+	if blockHeight == 0 {
+		blockHeader, err := h.usecase.GetLatestBlock(ctx.UserContext())
+		if err != nil {
+			return errors.Wrap(err, "error during GetLatestBlock")
+		}
+		blockHeight = uint64(blockHeader.Height)
+	}
+
+	transferables, err := h.usecase.GetTransferableTransfersByPkScript(ctx.UserContext(), pkScript, blockHeight)
+	if err != nil {
+		return errors.Wrap(err, "error during GetTransferableTransfersByPkScript")
+	}
+
+	transferableTicks := lo.Map(transferables, func(src *entity.EventInscribeTransfer, _ int) string { return src.Tick })
+	entries, err := h.usecase.GetTickEntryByTickBatch(ctx.UserContext(), transferableTicks)
+	if err != nil {
+		return errors.Wrap(err, "error during GetTickEntryByTickBatch")
+	}
+
+	groupedtransferableTi := lo.GroupBy(transferables, func(src *entity.EventInscribeTransfer) wire.OutPoint { return src.SatPoint.OutPoint })
+	utxoList := make([]utxo, 0, len(groupedtransferableTi))
+	for outPoint, transferables := range groupedtransferableTi {
+		transferableInscriptions := make([]transferableInscription, 0, len(transferables))
+		for _, transferable := range transferables {
+			entry := entries[transferable.Tick]
+			transferableInscriptions = append(transferableInscriptions, transferableInscription{
+				Ticker:   transferable.Tick,
+				Amount:   decimals.ToUint256(transferable.Amount, entry.Decimals),
+				Decimals: entry.Decimals,
+			})
+		}
+
+		utxoList = append(utxoList, utxo{
+			TxHash:      outPoint.Hash,
+			OutputIndex: outPoint.Index,
+			Extend: utxoExtend{
+				TransferableInscriptions: transferableInscriptions,
+			},
+		})
+	}
+
+	// TODO: filter tickers in pg query
+	// filter by req.Id if exists
+	{
+		utxoList = lo.Filter(utxoList, func(u utxo, _ int) bool {
+			for _, transferableInscriptions := range u.Extend.TransferableInscriptions {
+				if ok := strings.EqualFold(req.Id, transferableInscriptions.Ticker); ok {
+					return ok
+				}
+			}
+			return false
+		})
+	}
+
+	resp := getUTXOsByAddressResponse{
+		Result: &getUTXOsByAddressResult{
+			BlockHeight: blockHeight,
+			List:        utxoList,
+		},
+	}
+
+	return errors.WithStack(ctx.JSON(resp))
+}

modules/brc20/api/httphandler/httphandler.go

@@ -0,0 +1,18 @@
+package httphandler
+
+import (
+	"github.com/gaze-network/indexer-network/common"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/usecase"
+)
+
+type HttpHandler struct {
+	usecase *usecase.Usecase
+	network common.Network
+}
+
+func New(network common.Network, usecase *usecase.Usecase) *HttpHandler {
+	return &HttpHandler{
+		network: network,
+		usecase: usecase,
+	}
+}

modules/brc20/api/httphandler/routes.go

@@ -0,0 +1,19 @@
+package httphandler
+
+import (
+	"github.com/gofiber/fiber/v2"
+)
+
+func (h *HttpHandler) Mount(router fiber.Router) error {
+	r := router.Group("/v2/brc20")
+
+	r.Post("/balances/wallet/batch", h.GetBalancesByAddressBatch)
+	r.Get("/balances/wallet/:wallet", h.GetBalancesByAddress)
+	r.Get("/transactions", h.GetTransactions)
+	r.Get("/holders/:id", h.GetHolders)
+	r.Get("/info/:id", h.GetTokenInfo)
+	r.Get("/utxos/wallet/:wallet", h.GetUTXOsByAddress)
+	r.Get("/block", h.GetCurrentBlock)
+
+	return nil
+}

modules/brc20/brc20.go

@@ -0,0 +1,93 @@
+package brc20
+
+import (
+	"context"
+	"strings"
+
+	"github.com/btcsuite/btcd/rpcclient"
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common/errs"
+	"github.com/gaze-network/indexer-network/core/datasources"
+	"github.com/gaze-network/indexer-network/core/indexer"
+	"github.com/gaze-network/indexer-network/core/types"
+	"github.com/gaze-network/indexer-network/internal/config"
+	"github.com/gaze-network/indexer-network/internal/postgres"
+	"github.com/gaze-network/indexer-network/modules/brc20/api/httphandler"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/datagateway"
+	brc20postgres "github.com/gaze-network/indexer-network/modules/brc20/internal/repository/postgres"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/usecase"
+	"github.com/gaze-network/indexer-network/pkg/btcclient"
+	"github.com/gaze-network/indexer-network/pkg/logger"
+	"github.com/gofiber/fiber/v2"
+	"github.com/samber/do/v2"
+	"github.com/samber/lo"
+)
+
+func New(injector do.Injector) (indexer.IndexerWorker, error) {
+	ctx := do.MustInvoke[context.Context](injector)
+	conf := do.MustInvoke[config.Config](injector)
+	// reportingClient := do.MustInvoke[*reportingclient.ReportingClient](injector)
+
+	cleanupFuncs := make([]func(context.Context) error, 0)
+	var brc20Dg datagateway.BRC20DataGateway
+	var indexerInfoDg datagateway.IndexerInfoDataGateway
+	switch strings.ToLower(conf.Modules.BRC20.Database) {
+	case "postgresql", "postgres", "pg":
+		pg, err := postgres.NewPool(ctx, conf.Modules.BRC20.Postgres)
+		if err != nil {
+			if errors.Is(err, errs.InvalidArgument) {
+				return nil, errors.Wrap(err, "Invalid Postgres configuration for indexer")
+			}
+			return nil, errors.Wrap(err, "can't create Postgres connection pool")
+		}
+		cleanupFuncs = append(cleanupFuncs, func(ctx context.Context) error {
+			pg.Close()
+			return nil
+		})
+		brc20Repo := brc20postgres.NewRepository(pg)
+		brc20Dg = brc20Repo
+		indexerInfoDg = brc20Repo
+	default:
+		return nil, errors.Wrapf(errs.Unsupported, "%q database for indexer is not supported", conf.Modules.BRC20.Database)
+	}
+
+	var bitcoinDatasource datasources.Datasource[*types.Block]
+	var bitcoinClient btcclient.Contract
+	switch strings.ToLower(conf.Modules.BRC20.Datasource) {
+	case "bitcoin-node":
+		btcClient := do.MustInvoke[*rpcclient.Client](injector)
+		bitcoinNodeDatasource := datasources.NewBitcoinNode(btcClient)
+		bitcoinDatasource = bitcoinNodeDatasource
+		bitcoinClient = bitcoinNodeDatasource
+	default:
+		return nil, errors.Wrapf(errs.Unsupported, "%q datasource is not supported", conf.Modules.BRC20.Datasource)
+	}
+
+	processor, err := NewProcessor(brc20Dg, indexerInfoDg, bitcoinClient, conf.Network, cleanupFuncs)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+	if err := processor.VerifyStates(ctx); err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	// Mount API
+	apiHandlers := lo.Uniq(conf.Modules.BRC20.APIHandlers)
+	for _, handler := range apiHandlers {
+		switch handler { // TODO: support more handlers (e.g. gRPC)
+		case "http":
+			httpServer := do.MustInvoke[*fiber.App](injector)
+			uc := usecase.New(brc20Dg, bitcoinClient)
+			httpHandler := httphandler.New(conf.Network, uc)
+			if err := httpHandler.Mount(httpServer); err != nil {
+				return nil, errors.Wrap(err, "can't mount API")
+			}
+			logger.InfoContext(ctx, "Mounted HTTP handler")
+		default:
+			return nil, errors.Wrapf(errs.Unsupported, "%q API handler is not supported", handler)
+		}
+	}
+
+	indexer := indexer.New(processor, bitcoinDatasource)
+	return indexer, nil
+}

modules/brc20/config/config.go

@@ -0,0 +1,10 @@
+package config
+
+import "github.com/gaze-network/indexer-network/internal/postgres"
+
+type Config struct {
+	Datasource  string          `mapstructure:"datasource"`   // Datasource to fetch bitcoin data for Meta-Protocol e.g. `bitcoin-node`
+	Database    string          `mapstructure:"database"`     // Database to store data.
+	APIHandlers []string        `mapstructure:"api_handlers"` // List of API handlers to enable. (e.g. `http`)
+	Postgres    postgres.Config `mapstructure:"postgres"`
+}

modules/brc20/constants.go

@@ -0,0 +1,25 @@
+package brc20
+
+import (
+	"github.com/Cleverse/go-utilities/utils"
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/gaze-network/indexer-network/common"
+	"github.com/gaze-network/indexer-network/core/types"
+)
+
+const (
+	ClientVersion    = "v0.0.1"
+	DBVersion        = 1
+	EventHashVersion = 1
+)
+
+var startingBlockHeader = map[common.Network]types.BlockHeader{
+	common.NetworkMainnet: {
+		Height: 767429,
+		Hash:   *utils.Must(chainhash.NewHashFromStr("00000000000000000002b35aef66eb15cd2b232a800f75a2f25cedca4cfe52c4")),
+	},
+	common.NetworkTestnet: {
+		Height: 2413342,
+		Hash:   *utils.Must(chainhash.NewHashFromStr("00000000000022e97030b143af785de812f836dd0651b6ac2b7dd9e90dc9abf9")),
+	},
+}

modules/brc20/database/postgresql/migrations/000001_initialize_tables.down.sql

@@ -0,0 +1,17 @@
+BEGIN;
+
+DROP TABLE IF EXISTS "brc20_indexer_states";
+DROP TABLE IF EXISTS "brc20_indexed_blocks";
+DROP TABLE IF EXISTS "brc20_processor_stats";
+DROP TABLE IF EXISTS "brc20_tick_entries";
+DROP TABLE IF EXISTS "brc20_tick_entry_states";
+DROP TABLE IF EXISTS "brc20_event_deploys";
+DROP TABLE IF EXISTS "brc20_event_mints";
+DROP TABLE IF EXISTS "brc20_event_inscribe_transfers";
+DROP TABLE IF EXISTS "brc20_event_transfer_transfers";
+DROP TABLE IF EXISTS "brc20_balances";
+DROP TABLE IF EXISTS "brc20_inscription_entries";
+DROP TABLE IF EXISTS "brc20_inscription_entry_states";
+DROP TABLE IF EXISTS "brc20_inscription_transfers";
+
+COMMIT;

modules/brc20/database/postgresql/migrations/000001_initialize_tables.up.sql

@@ -0,0 +1,191 @@
+BEGIN;
+
+-- Indexer Client Information
+
+CREATE TABLE IF NOT EXISTS "brc20_indexer_states" (
+	"id" BIGSERIAL PRIMARY KEY,
+	"client_version" TEXT NOT NULL,
+	"network" TEXT NOT NULL,
+	"db_version" INT NOT NULL,
+	"event_hash_version" INT NOT NULL,
+	"created_at" TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+CREATE INDEX IF NOT EXISTS brc20_indexer_state_created_at_idx ON "brc20_indexer_states" USING BTREE ("created_at" DESC);
+
+-- BRC20 data
+
+CREATE TABLE IF NOT EXISTS "brc20_indexed_blocks" (
+	"height" INT NOT NULL PRIMARY KEY,
+	"hash" TEXT NOT NULL,
+	"event_hash" TEXT NOT NULL,
+	"cumulative_event_hash" TEXT NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS "brc20_processor_stats" (
+	"block_height" INT NOT NULL PRIMARY KEY,
+	"cursed_inscription_count" INT NOT NULL,
+	"blessed_inscription_count" INT NOT NULL,
+	"lost_sats" BIGINT NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS "brc20_tick_entries" (
+	"tick" TEXT NOT NULL PRIMARY KEY, -- lowercase of original_tick
+	"original_tick" TEXT NOT NULL,
+	"total_supply" DECIMAL NOT NULL,
+	"decimals" SMALLINT NOT NULL,
+	"limit_per_mint" DECIMAL NOT NULL,
+	"is_self_mint" BOOLEAN NOT NULL,
+	"deploy_inscription_id" TEXT NOT NULL,
+	"deployed_at" TIMESTAMP NOT NULL,
+	"deployed_at_height" INT NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS "brc20_tick_entry_states" (
+	"tick" TEXT NOT NULL,
+	"block_height" INT NOT NULL,
+	"minted_amount" DECIMAL NOT NULL,
+	"burned_amount" DECIMAL NOT NULL,
+	"completed_at" TIMESTAMP,
+	"completed_at_height" INT,
+	PRIMARY KEY ("tick", "block_height")
+);
+
+CREATE TABLE IF NOT EXISTS "brc20_event_deploys" (
+	"id" BIGINT PRIMARY KEY NOT NULL,
+	"inscription_id" TEXT NOT NULL,
+	"inscription_number" BIGINT NOT NULL,
+	"tick" TEXT NOT NULL, -- lowercase of original_tick
+	"original_tick" TEXT NOT NULL,
+	"tx_hash" TEXT NOT NULL,
+	"block_height" INT NOT NULL,
+	"tx_index" INT NOT NULL,
+	"timestamp" TIMESTAMP NOT NULL,
+	
+	"pkscript" TEXT NOT NULL,
+	"satpoint" TEXT NOT NULL,
+	"total_supply" DECIMAL NOT NULL,
+	"decimals" SMALLINT NOT NULL,
+	"limit_per_mint" DECIMAL NOT NULL,
+	"is_self_mint" BOOLEAN NOT NULL
+);
+CREATE INDEX IF NOT EXISTS brc20_event_deploys_block_height_idx ON "brc20_event_deploys" USING BTREE ("block_height");
+
+CREATE TABLE IF NOT EXISTS "brc20_event_mints" (
+	"id" BIGINT PRIMARY KEY NOT NULL,
+	"inscription_id" TEXT NOT NULL,
+	"inscription_number" BIGINT NOT NULL,
+	"tick" TEXT NOT NULL, -- lowercase of original_tick
+	"original_tick" TEXT NOT NULL,
+	"tx_hash" TEXT NOT NULL,
+	"block_height" INT NOT NULL,
+	"tx_index" INT NOT NULL,
+	"timestamp" TIMESTAMP NOT NULL,
+
+	"pkscript" TEXT NOT NULL,
+	"satpoint" TEXT NOT NULL,
+	"amount" DECIMAL NOT NULL,
+	"parent_id" TEXT -- requires parent deploy inscription id if minting a self-mint ticker
+);
+CREATE INDEX IF NOT EXISTS brc20_event_mints_block_height_idx ON "brc20_event_mints" USING BTREE ("block_height");
+
+CREATE TABLE IF NOT EXISTS "brc20_event_inscribe_transfers" (
+	"id" BIGINT PRIMARY KEY NOT NULL,
+	"inscription_id" TEXT NOT NULL,
+	"inscription_number" BIGINT NOT NULL,
+	"tick" TEXT NOT NULL, -- lowercase of original_tick
+	"original_tick" TEXT NOT NULL,
+	"tx_hash" TEXT NOT NULL,
+	"block_height" INT NOT NULL,
+	"tx_index" INT NOT NULL,
+	"timestamp" TIMESTAMP NOT NULL,
+
+	"pkscript" TEXT NOT NULL,
+	"satpoint" TEXT NOT NULL,
+	"output_index" INT NOT NULL,
+	"sats_amount" BIGINT NOT NULL,
+	"amount" DECIMAL NOT NULL
+);
+CREATE INDEX IF NOT EXISTS brc20_event_inscribe_transfers_block_height_idx ON "brc20_event_inscribe_transfers" USING BTREE ("block_height");
+CREATE INDEX IF NOT EXISTS brc20_event_inscribe_transfers_inscription_id_idx ON "brc20_event_inscribe_transfers" USING BTREE ("inscription_id"); -- used for validating transfer transfer events
+
+CREATE TABLE IF NOT EXISTS "brc20_event_transfer_transfers" (
+	"id" BIGINT PRIMARY KEY NOT NULL,
+	"inscription_id" TEXT NOT NULL,
+	"inscription_number" BIGINT NOT NULL,
+	"tick" TEXT NOT NULL, -- lowercase of original_tick
+	"original_tick" TEXT NOT NULL,
+	"tx_hash" TEXT NOT NULL,
+	"block_height" INT NOT NULL,
+	"tx_index" INT NOT NULL,
+	"timestamp" TIMESTAMP NOT NULL,
+
+	"from_pkscript" TEXT NOT NULL,
+	"from_satpoint" TEXT NOT NULL,
+	"from_input_index" INT NOT NULL,
+	"to_pkscript" TEXT NOT NULL,
+	"to_satpoint" TEXT NOT NULL,
+	"to_output_index" INT NOT NULL,
+	"spent_as_fee" BOOLEAN NOT NULL,
+	"amount" DECIMAL NOT NULL
+);
+CREATE INDEX IF NOT EXISTS brc20_event_transfer_transfers_block_height_idx ON "brc20_event_transfer_transfers" USING BTREE ("block_height");
+
+CREATE TABLE IF NOT EXISTS "brc20_balances" (
+	"pkscript" TEXT NOT NULL,
+	"block_height" INT NOT NULL,
+	"tick" TEXT NOT NULL,
+	"overall_balance" DECIMAL NOT NULL, -- overall balance = available_balance + transferable_balance
+	"available_balance" DECIMAL NOT NULL,
+	PRIMARY KEY ("pkscript", "tick", "block_height")
+);
+
+CREATE TABLE IF NOT EXISTS "brc20_inscription_entries" (
+	"id" TEXT NOT NULL PRIMARY KEY,
+	"number" BIGINT NOT NULL,
+	"sequence_number" BIGINT NOT NULL,
+	"delegate" TEXT, -- delegate inscription id
+	"metadata" BYTEA,
+	"metaprotocol" TEXT,
+	"parents" TEXT[], -- parent inscription id, 0.14 only supports 1 parent per inscription
+	"pointer" BIGINT,
+	"content" JSONB, -- can use jsonb because we only track brc20 inscriptions
+	"content_encoding" TEXT,
+	"content_type" TEXT,
+	"cursed" BOOLEAN NOT NULL, -- inscriptions after jubilee are no longer cursed in 0.14, which affects inscription number
+	"cursed_for_brc20" BOOLEAN NOT NULL, -- however, inscriptions that would normally be cursed are still considered cursed for brc20
+	"created_at" TIMESTAMP NOT NULL,
+	"created_at_height" INT NOT NULL
+);
+CREATE INDEX IF NOT EXISTS brc20_inscription_entries_id_number_idx ON "brc20_inscription_entries" USING BTREE ("id", "number");
+
+CREATE TABLE IF NOT EXISTS "brc20_inscription_entry_states" (
+	"id" TEXT NOT NULL,
+	"block_height" INT NOT NULL,
+	"transfer_count" INT NOT NULL,
+	PRIMARY KEY ("id", "block_height")
+);
+
+CREATE TABLE IF NOT EXISTS "brc20_inscription_transfers" (
+	"inscription_id" TEXT NOT NULL,
+	"inscription_number" BIGINT NOT NULL,
+	"inscription_sequence_number" BIGINT NOT NULL,
+	"block_height" INT NOT NULL,
+	"tx_index" INT NOT NULL,
+	"tx_hash" TEXT NOT NULL,
+	"from_input_index" INT NOT NULL,
+	"old_satpoint_tx_hash" TEXT,
+	"old_satpoint_out_idx" INT,
+	"old_satpoint_offset" BIGINT,
+	"new_satpoint_tx_hash" TEXT,
+	"new_satpoint_out_idx" INT,
+	"new_satpoint_offset" BIGINT,
+	"new_pkscript" TEXT NOT NULL,
+	"new_output_value" BIGINT NOT NULL,
+	"sent_as_fee" BOOLEAN NOT NULL,
+	"transfer_count" INT NOT NULL,
+	PRIMARY KEY ("inscription_id", "block_height", "tx_index")
+);
+CREATE INDEX IF NOT EXISTS brc20_inscription_transfers_block_height_tx_index_idx ON "brc20_inscription_transfers" USING BTREE ("block_height", "tx_index");
+CREATE INDEX IF NOT EXISTS brc20_inscription_transfers_new_satpoint_idx ON "brc20_inscription_transfers" USING BTREE ("new_satpoint_tx_hash", "new_satpoint_out_idx", "new_satpoint_offset");
+
+COMMIT;

modules/brc20/database/postgresql/queries/data.sql

@@ -0,0 +1,263 @@
+-- name: GetTransferableTransfersByPkScript :many
+SELECT * 
+FROM "brc20_event_inscribe_transfers"
+WHERE 
+  pkscript = $1 
+  AND "brc20_event_inscribe_transfers"."block_height" <= $2
+  AND NOT EXISTS (
+    SELECT NULL
+    FROM "brc20_event_transfer_transfers" 
+    WHERE "brc20_event_transfer_transfers"."inscription_id" = "brc20_event_inscribe_transfers"."inscription_id"
+  )
+ORDER BY "brc20_event_inscribe_transfers"."block_height" DESC;
+
+-- name: GetBalancesByPkScript :many
+WITH balances AS (
+  SELECT DISTINCT ON (tick) * FROM brc20_balances WHERE pkscript = $1 AND block_height <= $2 ORDER BY tick, overall_balance DESC
+)
+SELECT * FROM balances WHERE overall_balance > 0;
+
+-- name: GetBalancesByTick :many
+WITH balances AS (
+  SELECT DISTINCT ON (pkscript) * FROM brc20_balances WHERE tick = $1 AND block_height <= $2 ORDER BY pkscript, block_height DESC
+)
+SELECT * FROM balances WHERE overall_balance > 0;
+
+-- name: GetDeployEventByTick :one
+SELECT * FROM brc20_event_deploys WHERE tick = $1;
+
+-- name: GetFirstLastInscriptionNumberByTick :one
+SELECT 
+  COALESCE(MIN("inscription_number"), -1)::BIGINT AS "first_inscription_number", 
+  COALESCE(MAX("inscription_number"), -1)::BIGINT AS "last_inscription_number"
+FROM (
+  SELECT inscription_number FROM "brc20_event_mints" WHERE "brc20_event_mints"."tick" = $1
+	UNION ALL
+	SELECT inscription_number FROM "brc20_event_inscribe_transfers" WHERE "brc20_event_inscribe_transfers"."tick" = $1
+	UNION ALL
+	SELECT inscription_number FROM "brc20_event_transfer_transfers" WHERE "brc20_event_transfer_transfers"."tick" = $1
+) as events;
+-- WITH 
+-- "first_mint" AS (SELECT "inscription_number" FROM "brc20_event_mints" WHERE "brc20_event_mints".tick = $1 ORDER BY "id" ASC LIMIT 1),
+-- "latest_mint" AS (SELECT "inscription_number" FROM "brc20_event_mints" WHERE "brc20_event_mints".tick = $1 ORDER BY "id" DESC LIMIT 1),
+-- "first_inscribe_transfer" AS (SELECT "inscription_number" FROM "brc20_event_inscribe_transfers" WHERE "brc20_event_inscribe_transfers".tick = $1 ORDER BY "id" ASC LIMIT 1),
+-- "latest_inscribe_transfer" AS (SELECT "inscription_number" FROM "brc20_event_inscribe_transfers" WHERE "brc20_event_inscribe_transfers".tick = $1 ORDER BY "id" DESC LIMIT 1)
+-- SELECT
+--  COALESCE(
+--     LEAST(
+--       (SELECT "inscription_number" FROM "first_mint"),
+--       (SELECT "inscription_number" FROM "first_inscribe_transfer")
+--     ),
+--     -1
+--   ) AS "first_inscription_number",
+--   COALESCE(
+--     GREATEST(
+--       (SELECT "inscription_number" FROM "latest_mint"),
+--       (SELECT "inscription_number" FROM "latest_inscribe_transfer")
+--     ),
+--     -1
+--   ) AS "last_inscription_number";
+
+-- name: GetTickEntriesByTicksAndHeight :many
+WITH "states" AS (
+  -- select latest state
+  SELECT DISTINCT ON ("tick") * FROM "brc20_tick_entry_states" WHERE "tick" = ANY(@ticks::text[]) AND block_height <= @height ORDER BY "tick", "block_height" DESC
+)
+SELECT * FROM "brc20_tick_entries"
+  LEFT JOIN "states" ON "brc20_tick_entries"."tick" = "states"."tick"
+  WHERE "brc20_tick_entries"."tick" = ANY(@ticks::text[]) AND deployed_at_height <= @height;;
+
+-- name: GetDeployEvents :many
+SELECT * FROM "brc20_event_deploys"
+WHERE (
+    @filter_pk_script::BOOLEAN = FALSE -- if @filter_pk_script is TRUE, apply pk_script filter
+    OR pkscript = @pk_script
+  ) AND (
+    @filter_ticker::BOOLEAN = FALSE -- if @filter_ticker is TRUE, apply ticker filter
+    OR tick = @ticker 
+  ) AND (
+    @block_height::INT = 0 OR block_height = @block_height::INT -- if @block_height > 0, apply block_height filter
+  );
+
+-- name: GetMintEvents :many
+SELECT * FROM "brc20_event_mints"
+WHERE (
+    @filter_pk_script::BOOLEAN = FALSE -- if @filter_pk_script is TRUE, apply pk_script filter
+    OR pkscript = @pk_script
+  ) AND (
+    @filter_ticker::BOOLEAN = FALSE -- if @filter_ticker is TRUE, apply ticker filter
+    OR tick = @ticker 
+  ) AND (
+    @block_height::INT = 0 OR block_height = @block_height::INT -- if @block_height > 0, apply block_height filter
+  );
+
+-- name: GetInscribeTransferEvents :many
+SELECT * FROM "brc20_event_inscribe_transfers"
+WHERE (
+    @filter_pk_script::BOOLEAN = FALSE -- if @filter_pk_script is TRUE, apply pk_script filter
+    OR pkscript = @pk_script
+  ) AND (
+    @filter_ticker::BOOLEAN = FALSE -- if @filter_ticker is TRUE, apply ticker filter
+    OR tick = @ticker 
+  ) AND (
+    @block_height::INT = 0 OR block_height = @block_height::INT -- if @block_height > 0, apply block_height filter
+  );
+
+-- name: GetTransferTransferEvents :many
+SELECT * FROM "brc20_event_transfer_transfers"
+WHERE (
+    @filter_pk_script::BOOLEAN = FALSE -- if @filter_pk_script is TRUE, apply pk_script filter
+    OR from_pkscript = @pk_script
+    OR to_pkscript = @pk_script
+  ) AND (
+    @filter_ticker::BOOLEAN = FALSE -- if @filter_ticker is TRUE, apply ticker filter
+    OR tick = @ticker 
+  ) AND (
+    @block_height::INT = 0 OR block_height = @block_height::INT -- if @block_height > 0, apply block_height filter
+  );
+
+-- name: GetLatestIndexedBlock :one
+SELECT * FROM "brc20_indexed_blocks" ORDER BY "height" DESC LIMIT 1;
+
+-- name: GetIndexedBlockByHeight :one
+SELECT * FROM "brc20_indexed_blocks" WHERE "height" = $1;
+
+-- name: GetLatestProcessorStats :one
+SELECT * FROM "brc20_processor_stats" ORDER BY "block_height" DESC LIMIT 1;
+
+-- name: GetInscriptionTransfersInOutPoints :many
+SELECT "it".*, "ie"."content"   FROM (
+    SELECT
+      unnest(@tx_hash_arr::text[]) AS "tx_hash",
+      unnest(@tx_out_idx_arr::int[]) AS "tx_out_idx"
+  ) "inputs"
+  INNER JOIN "brc20_inscription_transfers" it ON "inputs"."tx_hash" = "it"."new_satpoint_tx_hash" AND "inputs"."tx_out_idx" = "it"."new_satpoint_out_idx"
+  LEFT JOIN "brc20_inscription_entries" ie ON "it"."inscription_id" = "ie"."id";
+  ;
+
+-- name: GetInscriptionEntriesByIds :many
+WITH "states" AS (
+  -- select latest state
+  SELECT DISTINCT ON ("id") * FROM "brc20_inscription_entry_states" WHERE "id" = ANY(@inscription_ids::text[]) ORDER BY "id", "block_height" DESC
+)
+SELECT * FROM "brc20_inscription_entries"
+  LEFT JOIN "states" ON "brc20_inscription_entries"."id" = "states"."id"
+  WHERE "brc20_inscription_entries"."id" = ANY(@inscription_ids::text[]);
+
+-- name: GetTickEntriesByTicks :many
+WITH "states" AS (
+  -- select latest state
+  SELECT DISTINCT ON ("tick") * FROM "brc20_tick_entry_states" WHERE "tick" = ANY(@ticks::text[]) ORDER BY "tick", "block_height" DESC
+)
+SELECT * FROM "brc20_tick_entries"
+  LEFT JOIN "states" ON "brc20_tick_entries"."tick" = "states"."tick"
+  WHERE "brc20_tick_entries"."tick" = ANY(@ticks::text[]);
+
+-- name: GetInscriptionNumbersByIds :many
+SELECT id, number FROM "brc20_inscription_entries" WHERE "id" = ANY(@inscription_ids::text[]);
+
+-- name: GetInscriptionParentsByIds :many
+SELECT id, parents FROM "brc20_inscription_entries" WHERE "id" = ANY(@inscription_ids::text[]);
+
+-- name: GetLatestEventIds :one
+WITH "latest_deploy_id" AS (
+  SELECT "id" FROM "brc20_event_deploys" ORDER BY "id" DESC LIMIT 1
+),
+"latest_mint_id" AS (
+  SELECT "id" FROM "brc20_event_mints" ORDER BY "id" DESC LIMIT 1
+),
+"latest_inscribe_transfer_id" AS (
+  SELECT "id" FROM "brc20_event_inscribe_transfers" ORDER BY "id" DESC LIMIT 1
+),
+"latest_transfer_transfer_id" AS (
+  SELECT "id" FROM "brc20_event_transfer_transfers" ORDER BY "id" DESC LIMIT 1
+)
+SELECT
+  COALESCE((SELECT "id" FROM "latest_deploy_id"), -1) AS "event_deploy_id",
+  COALESCE((SELECT "id" FROM "latest_mint_id"), -1) AS "event_mint_id",
+  COALESCE((SELECT "id" FROM "latest_inscribe_transfer_id"), -1) AS "event_inscribe_transfer_id",
+  COALESCE((SELECT "id" FROM "latest_transfer_transfer_id"), -1) AS "event_transfer_transfer_id";
+
+-- name: GetBalancesBatchAtHeight :many
+SELECT DISTINCT ON ("brc20_balances"."pkscript", "brc20_balances"."tick") "brc20_balances".* FROM "brc20_balances" 
+  INNER JOIN (
+    SELECT
+      unnest(@pkscript_arr::text[]) AS "pkscript",
+      unnest(@tick_arr::text[]) AS "tick"
+  ) "queries" ON "brc20_balances"."pkscript" = "queries"."pkscript" AND "brc20_balances"."tick" = "queries"."tick" AND "brc20_balances"."block_height" <= @block_height
+  ORDER BY "brc20_balances"."pkscript", "brc20_balances"."tick", "block_height" DESC;
+
+-- name: GetEventInscribeTransfersByInscriptionIds :many
+SELECT * FROM "brc20_event_inscribe_transfers" WHERE "inscription_id" = ANY(@inscription_ids::text[]);
+
+-- name: CreateIndexedBlock :exec
+INSERT INTO "brc20_indexed_blocks" ("height", "hash", "event_hash", "cumulative_event_hash") VALUES ($1, $2, $3, $4);
+
+-- name: CreateProcessorStats :exec
+INSERT INTO "brc20_processor_stats" ("block_height", "cursed_inscription_count", "blessed_inscription_count", "lost_sats") VALUES ($1, $2, $3, $4);
+
+-- name: CreateTickEntries :batchexec
+INSERT INTO "brc20_tick_entries" ("tick", "original_tick", "total_supply", "decimals", "limit_per_mint", "is_self_mint", "deploy_inscription_id", "deployed_at", "deployed_at_height") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9);
+
+-- name: CreateTickEntryStates :batchexec
+INSERT INTO "brc20_tick_entry_states" ("tick", "block_height", "minted_amount", "burned_amount", "completed_at", "completed_at_height") VALUES ($1, $2, $3, $4, $5, $6);
+
+-- name: CreateInscriptionEntries :batchexec
+INSERT INTO "brc20_inscription_entries" ("id", "number", "sequence_number", "delegate", "metadata", "metaprotocol", "parents", "pointer", "content", "content_encoding", "content_type", "cursed", "cursed_for_brc20", "created_at", "created_at_height") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15);
+
+-- name: CreateInscriptionEntryStates :batchexec
+INSERT INTO "brc20_inscription_entry_states" ("id", "block_height", "transfer_count") VALUES ($1, $2, $3);
+
+-- name: CreateInscriptionTransfers :batchexec
+INSERT INTO "brc20_inscription_transfers" ("inscription_id", "inscription_number", "inscription_sequence_number", "block_height", "tx_index", "tx_hash", "from_input_index", "old_satpoint_tx_hash", "old_satpoint_out_idx", "old_satpoint_offset", "new_satpoint_tx_hash", "new_satpoint_out_idx", "new_satpoint_offset", "new_pkscript", "new_output_value", "sent_as_fee", "transfer_count") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17);
+
+-- name: CreateEventDeploys :batchexec
+INSERT INTO "brc20_event_deploys" ("id", "inscription_id", "inscription_number", "tick", "original_tick", "tx_hash", "block_height", "tx_index", "timestamp", "pkscript", "satpoint", "total_supply", "decimals", "limit_per_mint", "is_self_mint") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15);
+
+-- name: CreateEventMints :batchexec
+INSERT INTO "brc20_event_mints" ("id", "inscription_id", "inscription_number", "tick", "original_tick", "tx_hash", "block_height", "tx_index", "timestamp", "pkscript", "satpoint", "amount", "parent_id") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13);
+
+-- name: CreateEventInscribeTransfers :batchexec
+INSERT INTO "brc20_event_inscribe_transfers" ("id", "inscription_id", "inscription_number", "tick", "original_tick", "tx_hash", "block_height", "tx_index", "timestamp", "pkscript", "satpoint", "output_index", "sats_amount", "amount") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14);
+
+-- name: CreateEventTransferTransfers :batchexec
+INSERT INTO "brc20_event_transfer_transfers" ("id", "inscription_id", "inscription_number", "tick", "original_tick", "tx_hash", "block_height", "tx_index", "timestamp", "from_pkscript", "from_satpoint", "from_input_index", "to_pkscript", "to_satpoint", "to_output_index", "spent_as_fee", "amount") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17);
+
+-- name: CreateBalances :batchexec
+INSERT INTO "brc20_balances" ("pkscript", "block_height", "tick", "overall_balance", "available_balance") VALUES ($1, $2, $3, $4, $5);
+
+-- name: DeleteIndexedBlocksSinceHeight :exec
+DELETE FROM "brc20_indexed_blocks" WHERE "height" >= $1;
+
+-- name: DeleteProcessorStatsSinceHeight :exec
+DELETE FROM "brc20_processor_stats" WHERE "block_height" >= $1;
+
+-- name: DeleteTickEntriesSinceHeight :exec
+DELETE FROM "brc20_tick_entries" WHERE "deployed_at_height" >= $1;
+
+-- name: DeleteTickEntryStatesSinceHeight :exec
+DELETE FROM "brc20_tick_entry_states" WHERE "block_height" >= $1;
+
+-- name: DeleteEventDeploysSinceHeight :exec
+DELETE FROM "brc20_event_deploys" WHERE "block_height" >= $1;
+
+-- name: DeleteEventMintsSinceHeight :exec
+DELETE FROM "brc20_event_mints" WHERE "block_height" >= $1;
+
+-- name: DeleteEventInscribeTransfersSinceHeight :exec
+DELETE FROM "brc20_event_inscribe_transfers" WHERE "block_height" >= $1;
+
+-- name: DeleteEventTransferTransfersSinceHeight :exec
+DELETE FROM "brc20_event_transfer_transfers" WHERE "block_height" >= $1;
+
+-- name: DeleteBalancesSinceHeight :exec
+DELETE FROM "brc20_balances" WHERE "block_height" >= $1;
+
+-- name: DeleteInscriptionEntriesSinceHeight :exec
+DELETE FROM "brc20_inscription_entries" WHERE "created_at_height" >= $1;
+
+-- name: DeleteInscriptionEntryStatesSinceHeight :exec
+DELETE FROM "brc20_inscription_entry_states" WHERE "block_height" >= $1;
+
+-- name: DeleteInscriptionTransfersSinceHeight :exec
+DELETE FROM "brc20_inscription_transfers" WHERE "block_height" >= $1;

modules/brc20/database/postgresql/queries/info.sql

@@ -0,0 +1,5 @@
+-- name: GetLatestIndexerState :one
+SELECT * FROM brc20_indexer_states ORDER BY created_at DESC LIMIT 1;
+
+-- name: CreateIndexerState :exec
+INSERT INTO brc20_indexer_states (client_version, network, db_version, event_hash_version) VALUES ($1, $2, $3, $4);

modules/brc20/event_hash.go

@@ -0,0 +1,69 @@
+package brc20
+
+import (
+	"encoding/hex"
+	"strconv"
+	"strings"
+
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/entity"
+	"github.com/samber/lo"
+)
+
+const eventHashSeparator = "|"
+
+func getEventDeployString(event *entity.EventDeploy) string {
+	var sb strings.Builder
+	sb.WriteString("deploy-inscribe;")
+	sb.WriteString(event.InscriptionId.String() + ";")
+	sb.WriteString(hex.EncodeToString(event.PkScript) + ";")
+	sb.WriteString(event.Tick + ";")
+	sb.WriteString(event.OriginalTick + ";")
+	sb.WriteString(event.TotalSupply.StringFixed(int32(event.Decimals)) + ";")
+	sb.WriteString(strconv.Itoa(int(event.Decimals)) + ";")
+	sb.WriteString(event.LimitPerMint.StringFixed(int32(event.Decimals)) + ";")
+	sb.WriteString(lo.Ternary(event.IsSelfMint, "True", "False"))
+	return sb.String()
+}
+
+func getEventMintString(event *entity.EventMint, decimals uint16) string {
+	var sb strings.Builder
+	var parentId string
+	if event.ParentId != nil {
+		parentId = event.ParentId.String()
+	}
+	sb.WriteString("mint-inscribe;")
+	sb.WriteString(event.InscriptionId.String() + ";")
+	sb.WriteString(hex.EncodeToString(event.PkScript) + ";")
+	sb.WriteString(event.Tick + ";")
+	sb.WriteString(event.OriginalTick + ";")
+	sb.WriteString(event.Amount.StringFixed(int32(decimals)) + ";")
+	sb.WriteString(parentId)
+	return sb.String()
+}
+
+func getEventInscribeTransferString(event *entity.EventInscribeTransfer, decimals uint16) string {
+	var sb strings.Builder
+	sb.WriteString("inscribe-transfer;")
+	sb.WriteString(event.InscriptionId.String() + ";")
+	sb.WriteString(hex.EncodeToString(event.PkScript) + ";")
+	sb.WriteString(event.Tick + ";")
+	sb.WriteString(event.OriginalTick + ";")
+	sb.WriteString(event.Amount.StringFixed(int32(decimals)))
+	return sb.String()
+}
+
+func getEventTransferTransferString(event *entity.EventTransferTransfer, decimals uint16) string {
+	var sb strings.Builder
+	sb.WriteString("transfer-transfer;")
+	sb.WriteString(event.InscriptionId.String() + ";")
+	sb.WriteString(hex.EncodeToString(event.FromPkScript) + ";")
+	if event.SpentAsFee {
+		sb.WriteString(";")
+	} else {
+		sb.WriteString(hex.EncodeToString(event.ToPkScript) + ";")
+	}
+	sb.WriteString(event.Tick + ";")
+	sb.WriteString(event.OriginalTick + ";")
+	sb.WriteString(event.Amount.StringFixed(int32(decimals)))
+	return sb.String()
+}

modules/brc20/internal/brc20/activation.go

@@ -0,0 +1,16 @@
+package brc20
+
+import "github.com/gaze-network/indexer-network/common"
+
+var selfMintActivationHeights = map[common.Network]uint64{
+	common.NetworkMainnet: 837090,
+	common.NetworkTestnet: 837090,
+}
+
+func isSelfMintActivated(height uint64, network common.Network) bool {
+	activationHeight, ok := selfMintActivationHeights[network]
+	if !ok {
+		return false
+	}
+	return height >= activationHeight
+}

modules/brc20/internal/brc20/operations.go

@@ -0,0 +1,21 @@
+package brc20
+
+type Operation string
+
+const (
+	OperationDeploy   Operation = "deploy"
+	OperationMint     Operation = "mint"
+	OperationTransfer Operation = "transfer"
+)
+
+func (o Operation) IsValid() bool {
+	switch o {
+	case OperationDeploy, OperationMint, OperationTransfer:
+		return true
+	}
+	return false
+}
+
+func (o Operation) String() string {
+	return string(o)
+}

modules/brc20/internal/brc20/payload.go

@@ -0,0 +1,173 @@
+package brc20
+
+import (
+	"encoding/json"
+	"math"
+	"math/big"
+	"strconv"
+	"strings"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/entity"
+	"github.com/shopspring/decimal"
+)
+
+type rawPayload struct {
+	P    string // required
+	Op   string `json:"op"`   // required
+	Tick string `json:"tick"` // required
+
+	// for deploy operations
+	Max      string  `json:"max"` // required
+	Lim      *string `json:"lim"`
+	Dec      *string `json:"dec"`
+	SelfMint *string `json:"self_mint"`
+
+	// for mint/transfer operations
+	Amt string `json:"amt"` // required
+}
+
+type Payload struct {
+	Transfer     *entity.InscriptionTransfer
+	P            string
+	Op           Operation
+	Tick         string // lower-cased tick
+	OriginalTick string // original tick before lower-cased
+
+	// for deploy operations
+	Max      decimal.Decimal
+	Lim      decimal.Decimal
+	Dec      uint16
+	SelfMint bool
+
+	// for mint/transfer operations
+	Amt decimal.Decimal
+}
+
+var (
+	ErrInvalidProtocol   = errors.New("invalid protocol: must be 'brc20'")
+	ErrInvalidOperation  = errors.New("invalid operation for brc20: must be one of 'deploy', 'mint', or 'transfer'")
+	ErrInvalidTickLength = errors.New("invalid tick length: must be 4 or 5 bytes")
+	ErrEmptyTick         = errors.New("empty tick")
+	ErrEmptyMax          = errors.New("empty max")
+	ErrInvalidMax        = errors.New("invalid max")
+	ErrInvalidDec        = errors.New("invalid dec")
+	ErrInvalidSelfMint   = errors.New("invalid self_mint")
+	ErrInvalidAmt        = errors.New("invalid amt")
+	ErrNumberOverflow    = errors.New("number overflow: max value is (2^64-1)")
+)
+
+func ParsePayload(transfer *entity.InscriptionTransfer) (*Payload, error) {
+	var p rawPayload
+	err := json.Unmarshal(transfer.Content, &p)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to unmarshal payload as json")
+	}
+
+	if p.P != "brc-20" {
+		return nil, errors.WithStack(ErrInvalidProtocol)
+	}
+	if !Operation(p.Op).IsValid() {
+		return nil, errors.WithStack(ErrInvalidOperation)
+	}
+	if p.Tick == "" {
+		return nil, errors.WithStack(ErrEmptyTick)
+	}
+	if len(p.Tick) != 4 && len(p.Tick) != 5 {
+		return nil, errors.WithStack(ErrInvalidTickLength)
+	}
+
+	parsed := Payload{
+		Transfer:     transfer,
+		P:            p.P,
+		Op:           Operation(p.Op),
+		Tick:         strings.ToLower(p.Tick),
+		OriginalTick: p.Tick,
+	}
+
+	switch parsed.Op {
+	case OperationDeploy:
+		if p.Max == "" {
+			return nil, errors.WithStack(ErrEmptyMax)
+		}
+		var rawDec string
+		if p.Dec != nil {
+			rawDec = *p.Dec
+		}
+		if rawDec == "" {
+			rawDec = "18"
+		}
+		dec, ok := strconv.ParseUint(rawDec, 10, 16)
+		if ok != nil {
+			return nil, errors.Wrap(ok, "failed to parse dec")
+		}
+		if dec > 18 {
+			return nil, errors.WithStack(ErrInvalidDec)
+		}
+		parsed.Dec = uint16(dec)
+
+		max, err := parseNumericString(p.Max, dec)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse max")
+		}
+		parsed.Max = max
+
+		limit := max
+		if p.Lim != nil {
+			limit, err = parseNumericString(*p.Lim, dec)
+			if err != nil {
+				return nil, errors.Wrap(err, "failed to parse lim")
+			}
+		}
+		parsed.Lim = limit
+
+		// 5-bytes ticks are self-mint only
+		if len(parsed.OriginalTick) == 5 {
+			if p.SelfMint == nil || *p.SelfMint != "true" {
+				return nil, errors.WithStack(ErrInvalidSelfMint)
+			}
+			// infinite mints if tick is self-mint, and max is set to 0
+			if parsed.Max.IsZero() {
+				parsed.Max = maxNumber
+				if parsed.Lim.IsZero() {
+					parsed.Lim = maxNumber
+				}
+			}
+		}
+		if parsed.Max.IsZero() {
+			return nil, errors.WithStack(ErrInvalidMax)
+		}
+	case OperationMint, OperationTransfer:
+		if p.Amt == "" {
+			return nil, errors.WithStack(ErrInvalidAmt)
+		}
+		// NOTE: check tick decimals after parsing payload
+		amt, err := parseNumericString(p.Amt, 18)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse amt")
+		}
+		parsed.Amt = amt
+	default:
+		return nil, errors.WithStack(ErrInvalidOperation)
+	}
+	return &parsed, nil
+}
+
+// max number for all numeric fields (except dec) is (2^64-1)
+var (
+	maxNumber = decimal.NewFromBigInt(new(big.Int).SetUint64(math.MaxUint64), 0)
+)
+
+func parseNumericString(s string, maxDec uint64) (decimal.Decimal, error) {
+	d, err := decimal.NewFromString(s)
+	if err != nil {
+		return decimal.Decimal{}, errors.Wrap(err, "failed to parse decimal number")
+	}
+	if -d.Exponent() > int32(maxDec) {
+		return decimal.Decimal{}, errors.Errorf("cannot parse decimal number: too many decimal points: expected %d got %d", maxDec, d.Exponent())
+	}
+	if d.GreaterThan(maxNumber) {
+		return decimal.Decimal{}, errors.WithStack(ErrNumberOverflow)
+	}
+	return d, nil
+}

modules/brc20/internal/datagateway/brc20.go

@@ -0,0 +1,81 @@
+package datagateway
+
+import (
+	"context"
+
+	"github.com/btcsuite/btcd/wire"
+	"github.com/gaze-network/indexer-network/core/types"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/entity"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/ordinals"
+)
+
+type BRC20DataGateway interface {
+	BRC20ReaderDataGateway
+	BRC20WriterDataGateway
+
+	// BeginBRC20Tx returns a new BRC20DataGateway with transaction enabled. All write operations performed in this datagateway must be committed to persist changes.
+	BeginBRC20Tx(ctx context.Context) (BRC20DataGatewayWithTx, error)
+}
+
+type BRC20DataGatewayWithTx interface {
+	BRC20DataGateway
+	Tx
+}
+
+type BRC20ReaderDataGateway interface {
+	GetLatestBlock(ctx context.Context) (types.BlockHeader, error)
+	GetIndexedBlockByHeight(ctx context.Context, height int64) (*entity.IndexedBlock, error)
+	GetProcessorStats(ctx context.Context) (*entity.ProcessorStats, error)
+	GetInscriptionTransfersInOutPoints(ctx context.Context, outPoints []wire.OutPoint) (map[ordinals.SatPoint][]*entity.InscriptionTransfer, error)
+	GetInscriptionEntriesByIds(ctx context.Context, ids []ordinals.InscriptionId) (map[ordinals.InscriptionId]*ordinals.InscriptionEntry, error)
+	GetInscriptionNumbersByIds(ctx context.Context, ids []ordinals.InscriptionId) (map[ordinals.InscriptionId]int64, error)
+	GetInscriptionParentsByIds(ctx context.Context, ids []ordinals.InscriptionId) (map[ordinals.InscriptionId]ordinals.InscriptionId, error)
+	GetBalancesBatchAtHeight(ctx context.Context, blockHeight uint64, queries []GetBalancesBatchAtHeightQuery) (map[string]map[string]*entity.Balance, error)
+	GetTickEntriesByTicks(ctx context.Context, ticks []string) (map[string]*entity.TickEntry, error)
+	GetEventInscribeTransfersByInscriptionIds(ctx context.Context, ids []ordinals.InscriptionId) (map[ordinals.InscriptionId]*entity.EventInscribeTransfer, error)
+	GetLatestEventId(ctx context.Context) (int64, error)
+	GetBalancesByTick(ctx context.Context, tick string, blockHeight uint64) ([]*entity.Balance, error)
+	GetBalancesByPkScript(ctx context.Context, pkScript []byte, blockHeight uint64) (map[string]*entity.Balance, error)
+	GetTransferableTransfersByPkScript(ctx context.Context, pkScript []byte, blockHeight uint64) ([]*entity.EventInscribeTransfer, error)
+	GetDeployEventByTick(ctx context.Context, tick string) (*entity.EventDeploy, error)
+	GetFirstLastInscriptionNumberByTick(ctx context.Context, tick string) (first, last int64, err error)
+	GetDeployEvents(ctx context.Context, pkScript []byte, tick string, height uint64) ([]*entity.EventDeploy, error)
+	GetMintEvents(ctx context.Context, pkScript []byte, tick string, height uint64) ([]*entity.EventMint, error)
+	GetInscribeTransferEvents(ctx context.Context, pkScript []byte, tick string, height uint64) ([]*entity.EventInscribeTransfer, error)
+	GetTransferTransferEvents(ctx context.Context, pkScript []byte, tick string, height uint64) ([]*entity.EventTransferTransfer, error)
+}
+
+type BRC20WriterDataGateway interface {
+	CreateIndexedBlock(ctx context.Context, block *entity.IndexedBlock) error
+	CreateProcessorStats(ctx context.Context, stats *entity.ProcessorStats) error
+	CreateTickEntries(ctx context.Context, blockHeight uint64, entries []*entity.TickEntry) error
+	CreateTickEntryStates(ctx context.Context, blockHeight uint64, entryStates []*entity.TickEntry) error
+	CreateInscriptionEntries(ctx context.Context, blockHeight uint64, entries []*ordinals.InscriptionEntry) error
+	CreateInscriptionEntryStates(ctx context.Context, blockHeight uint64, entryStates []*ordinals.InscriptionEntry) error
+	CreateInscriptionTransfers(ctx context.Context, transfers []*entity.InscriptionTransfer) error
+	CreateEventDeploys(ctx context.Context, events []*entity.EventDeploy) error
+	CreateEventMints(ctx context.Context, events []*entity.EventMint) error
+	CreateEventInscribeTransfers(ctx context.Context, events []*entity.EventInscribeTransfer) error
+	CreateEventTransferTransfers(ctx context.Context, events []*entity.EventTransferTransfer) error
+	CreateBalances(ctx context.Context, balances []*entity.Balance) error
+
+	// used for revert data
+	DeleteIndexedBlocksSinceHeight(ctx context.Context, height uint64) error
+	DeleteProcessorStatsSinceHeight(ctx context.Context, height uint64) error
+	DeleteTickEntriesSinceHeight(ctx context.Context, height uint64) error
+	DeleteTickEntryStatesSinceHeight(ctx context.Context, height uint64) error
+	DeleteEventDeploysSinceHeight(ctx context.Context, height uint64) error
+	DeleteEventMintsSinceHeight(ctx context.Context, height uint64) error
+	DeleteEventInscribeTransfersSinceHeight(ctx context.Context, height uint64) error
+	DeleteEventTransferTransfersSinceHeight(ctx context.Context, height uint64) error
+	DeleteBalancesSinceHeight(ctx context.Context, height uint64) error
+	DeleteInscriptionEntriesSinceHeight(ctx context.Context, height uint64) error
+	DeleteInscriptionEntryStatesSinceHeight(ctx context.Context, height uint64) error
+	DeleteInscriptionTransfersSinceHeight(ctx context.Context, height uint64) error
+}
+
+type GetBalancesBatchAtHeightQuery struct {
+	PkScriptHex string
+	Tick        string
+	BlockHeight uint64
+}

modules/brc20/internal/datagateway/indexer_info.go

@@ -0,0 +1,12 @@
+package datagateway
+
+import (
+	"context"
+
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/entity"
+)
+
+type IndexerInfoDataGateway interface {
+	GetLatestIndexerState(ctx context.Context) (entity.IndexerState, error)
+	CreateIndexerState(ctx context.Context, state entity.IndexerState) error
+}

modules/brc20/internal/datagateway/tx.go

@@ -0,0 +1,12 @@
+package datagateway
+
+import "context"
+
+type Tx interface {
+	// Commit commits the DB transaction. All changes made after Begin() will be persisted. Calling Commit() will close the current transaction.
+	// If Commit() is called without a prior Begin(), it must be a no-op.
+	Commit(ctx context.Context) error
+	// Rollback rolls back the DB transaction. All changes made after Begin() will be discarded.
+	// Rollback() must be safe to call even if no transaction is active. Hence, a defer Rollback() is safe, even if Commit() was called prior with non-error conditions.
+	Rollback(ctx context.Context) error
+}

modules/brc20/internal/entity/balance.go

@@ -0,0 +1,11 @@
+package entity
+
+import "github.com/shopspring/decimal"
+
+type Balance struct {
+	PkScript         []byte
+	Tick             string
+	BlockHeight      uint64
+	OverallBalance   decimal.Decimal
+	AvailableBalance decimal.Decimal
+}

modules/brc20/internal/entity/event_deploy.go

@@ -0,0 +1,28 @@
+package entity
+
+import (
+	"time"
+
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/ordinals"
+	"github.com/shopspring/decimal"
+)
+
+type EventDeploy struct {
+	Id                int64
+	InscriptionId     ordinals.InscriptionId
+	InscriptionNumber int64
+	Tick              string
+	OriginalTick      string
+	TxHash            chainhash.Hash
+	BlockHeight       uint64
+	TxIndex           uint32
+	Timestamp         time.Time
+
+	PkScript     []byte
+	SatPoint     ordinals.SatPoint
+	TotalSupply  decimal.Decimal
+	Decimals     uint16
+	LimitPerMint decimal.Decimal
+	IsSelfMint   bool
+}

modules/brc20/internal/entity/event_inscribe_transfer.go

@@ -0,0 +1,27 @@
+package entity
+
+import (
+	"time"
+
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/ordinals"
+	"github.com/shopspring/decimal"
+)
+
+type EventInscribeTransfer struct {
+	Id                int64
+	InscriptionId     ordinals.InscriptionId
+	InscriptionNumber int64
+	Tick              string
+	OriginalTick      string
+	TxHash            chainhash.Hash
+	BlockHeight       uint64
+	TxIndex           uint32
+	Timestamp         time.Time
+
+	PkScript    []byte
+	SatPoint    ordinals.SatPoint
+	OutputIndex uint32
+	SatsAmount  uint64
+	Amount      decimal.Decimal
+}

modules/brc20/internal/entity/event_mint.go

@@ -0,0 +1,26 @@
+package entity
+
+import (
+	"time"
+
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/ordinals"
+	"github.com/shopspring/decimal"
+)
+
+type EventMint struct {
+	Id                int64
+	InscriptionId     ordinals.InscriptionId
+	InscriptionNumber int64
+	Tick              string
+	OriginalTick      string
+	TxHash            chainhash.Hash
+	BlockHeight       uint64
+	TxIndex           uint32
+	Timestamp         time.Time
+
+	PkScript []byte
+	SatPoint ordinals.SatPoint
+	Amount   decimal.Decimal
+	ParentId *ordinals.InscriptionId
+}

modules/brc20/internal/entity/event_transfer_transfer.go

@@ -0,0 +1,30 @@
+package entity
+
+import (
+	"time"
+
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/ordinals"
+	"github.com/shopspring/decimal"
+)
+
+type EventTransferTransfer struct {
+	Id                int64
+	InscriptionId     ordinals.InscriptionId
+	InscriptionNumber int64
+	Tick              string
+	OriginalTick      string
+	TxHash            chainhash.Hash
+	BlockHeight       uint64
+	TxIndex           uint32
+	Timestamp         time.Time
+
+	FromPkScript   []byte
+	FromSatPoint   ordinals.SatPoint
+	FromInputIndex uint32
+	ToPkScript     []byte
+	ToSatPoint     ordinals.SatPoint
+	ToOutputIndex  uint32
+	SpentAsFee     bool
+	Amount         decimal.Decimal
+}

modules/brc20/internal/entity/flotsam.go

@@ -0,0 +1,31 @@
+package entity
+
+import (
+	"github.com/gaze-network/indexer-network/core/types"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/ordinals"
+)
+
+type OriginOld struct {
+	Content     []byte
+	OldSatPoint ordinals.SatPoint
+	InputIndex  uint32
+}
+type OriginNew struct {
+	Inscription    ordinals.Inscription
+	Parent         *ordinals.InscriptionId
+	Pointer        *uint64
+	Fee            uint64
+	Cursed         bool
+	CursedForBRC20 bool
+	Hidden         bool
+	Reinscription  bool
+	Unbound        bool
+}
+
+type Flotsam struct {
+	Tx            *types.Transaction
+	OriginOld     *OriginOld // OriginOld and OriginNew are mutually exclusive
+	OriginNew     *OriginNew // OriginOld and OriginNew are mutually exclusive
+	Offset        uint64
+	InscriptionId ordinals.InscriptionId
+}

modules/brc20/internal/entity/indexed_block.go

@@ -0,0 +1,10 @@
+package entity
+
+import "github.com/btcsuite/btcd/chaincfg/chainhash"
+
+type IndexedBlock struct {
+	Height              uint64
+	Hash                chainhash.Hash
+	EventHash           []byte
+	CumulativeEventHash []byte
+}

modules/brc20/internal/entity/indexer_state.go

@@ -0,0 +1,15 @@
+package entity
+
+import (
+	"time"
+
+	"github.com/gaze-network/indexer-network/common"
+)
+
+type IndexerState struct {
+	CreatedAt        time.Time
+	ClientVersion    string
+	DBVersion        int32
+	EventHashVersion int32
+	Network          common.Network
+}

modules/brc20/internal/entity/inscription_transfer.go

@@ -0,0 +1,23 @@
+package entity
+
+import (
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/ordinals"
+)
+
+type InscriptionTransfer struct {
+	InscriptionId             ordinals.InscriptionId
+	InscriptionNumber         int64
+	InscriptionSequenceNumber uint64
+	BlockHeight               uint64
+	TxIndex                   uint32
+	TxHash                    chainhash.Hash
+	Content                   []byte
+	FromInputIndex            uint32
+	OldSatPoint               ordinals.SatPoint
+	NewSatPoint               ordinals.SatPoint
+	NewPkScript               []byte
+	NewOutputValue            uint64
+	SentAsFee                 bool
+	TransferCount             uint32
+}

modules/brc20/internal/entity/processor_stats.go

@@ -0,0 +1,8 @@
+package entity
+
+type ProcessorStats struct {
+	BlockHeight             uint64
+	CursedInscriptionCount  uint64
+	BlessedInscriptionCount uint64
+	LostSats                uint64
+}

modules/brc20/internal/entity/tick_entry.go

@@ -0,0 +1,25 @@
+package entity
+
+import (
+	"time"
+
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/ordinals"
+	"github.com/shopspring/decimal"
+)
+
+type TickEntry struct {
+	Tick                string
+	OriginalTick        string
+	TotalSupply         decimal.Decimal
+	Decimals            uint16
+	LimitPerMint        decimal.Decimal
+	IsSelfMint          bool
+	DeployInscriptionId ordinals.InscriptionId
+	DeployedAt          time.Time
+	DeployedAtHeight    uint64
+
+	MintedAmount      decimal.Decimal
+	BurnedAmount      decimal.Decimal
+	CompletedAt       time.Time
+	CompletedAtHeight uint64
+}

modules/brc20/internal/ordinals/envelope.go

@@ -0,0 +1,285 @@
+package ordinals
+
+import (
+	"bytes"
+	"encoding/binary"
+
+	"github.com/btcsuite/btcd/txscript"
+	"github.com/gaze-network/indexer-network/core/types"
+	"github.com/samber/lo"
+)
+
+type Envelope struct {
+	Inscription           Inscription
+	InputIndex            uint32 // Index of input that contains the envelope
+	Offset                int    // Number of envelope in the input
+	PushNum               bool   // True if envelope contains pushnum opcodes
+	Stutter               bool   // True if envelope matches stuttering curse structure
+	IncompleteField       bool   // True if payload is incomplete
+	DuplicateField        bool   // True if payload contains duplicated field
+	UnrecognizedEvenField bool   // True if payload contains unrecognized even field
+}
+
+func ParseEnvelopesFromTx(tx *types.Transaction) []*Envelope {
+	envelopes := make([]*Envelope, 0)
+
+	for i, txIn := range tx.TxIn {
+		tapScript, ok := extractTapScript(txIn.Witness)
+		if !ok {
+			continue
+		}
+
+		newEnvelopes := envelopesFromTapScript(tapScript, i)
+		envelopes = append(envelopes, newEnvelopes...)
+	}
+
+	return envelopes
+}
+
+var protocolId = []byte("ord")
+
+func envelopesFromTapScript(tokenizer txscript.ScriptTokenizer, inputIndex int) []*Envelope {
+	envelopes := make([]*Envelope, 0)
+
+	var stuttered bool
+	for tokenizer.Next() {
+		if tokenizer.Err() != nil {
+			break
+		}
+		if tokenizer.Opcode() == txscript.OP_FALSE {
+			envelope, stutter := envelopeFromTokenizer(tokenizer, inputIndex, len(envelopes), stuttered)
+			if envelope != nil {
+				envelopes = append(envelopes, envelope)
+			} else {
+				stuttered = stutter
+			}
+		}
+	}
+	if tokenizer.Err() != nil {
+		return envelopes
+	}
+	return envelopes
+}
+
+func envelopeFromTokenizer(tokenizer txscript.ScriptTokenizer, inputIndex int, offset int, stuttered bool) (*Envelope, bool) {
+	tokenizer.Next()
+	if tokenizer.Opcode() != txscript.OP_IF {
+		return nil, tokenizer.Opcode() == txscript.OP_FALSE
+	}
+
+	tokenizer.Next()
+	if !bytes.Equal(tokenizer.Data(), protocolId) {
+		return nil, tokenizer.Opcode() == txscript.OP_FALSE
+	}
+
+	var pushNum bool
+	payload := make([][]byte, 0)
+	for tokenizer.Next() {
+		if tokenizer.Err() != nil {
+			return nil, false
+		}
+		opCode := tokenizer.Opcode()
+		if opCode == txscript.OP_ENDIF {
+			break
+		}
+		switch opCode {
+		case txscript.OP_1NEGATE:
+			pushNum = true
+			payload = append(payload, []byte{0x81})
+		case txscript.OP_1:
+			pushNum = true
+			payload = append(payload, []byte{0x01})
+		case txscript.OP_2:
+			pushNum = true
+			payload = append(payload, []byte{0x02})
+		case txscript.OP_3:
+			pushNum = true
+			payload = append(payload, []byte{0x03})
+		case txscript.OP_4:
+			pushNum = true
+			payload = append(payload, []byte{0x04})
+		case txscript.OP_5:
+			pushNum = true
+			payload = append(payload, []byte{0x05})
+		case txscript.OP_6:
+			pushNum = true
+			payload = append(payload, []byte{0x06})
+		case txscript.OP_7:
+			pushNum = true
+			payload = append(payload, []byte{0x07})
+		case txscript.OP_8:
+			pushNum = true
+			payload = append(payload, []byte{0x08})
+		case txscript.OP_9:
+			pushNum = true
+			payload = append(payload, []byte{0x09})
+		case txscript.OP_10:
+			pushNum = true
+			payload = append(payload, []byte{0x10})
+		case txscript.OP_11:
+			pushNum = true
+			payload = append(payload, []byte{0x11})
+		case txscript.OP_12:
+			pushNum = true
+			payload = append(payload, []byte{0x12})
+		case txscript.OP_13:
+			pushNum = true
+			payload = append(payload, []byte{0x13})
+		case txscript.OP_14:
+			pushNum = true
+			payload = append(payload, []byte{0x14})
+		case txscript.OP_15:
+			pushNum = true
+			payload = append(payload, []byte{0x15})
+		case txscript.OP_16:
+			pushNum = true
+			payload = append(payload, []byte{0x16})
+		case txscript.OP_0:
+			// OP_0 is a special case, it is accepted in ord's implementation
+			payload = append(payload, []byte{})
+		default:
+			data := tokenizer.Data()
+			if data == nil {
+				return nil, false
+			}
+			payload = append(payload, data)
+		}
+	}
+	// incomplete envelope
+	if tokenizer.Done() && tokenizer.Opcode() != txscript.OP_ENDIF {
+		return nil, false
+	}
+
+	// find body (empty data push in even index payload)
+	bodyIndex := -1
+	for i, value := range payload {
+		if i%2 == 0 && len(value) == 0 {
+			bodyIndex = i
+			break
+		}
+	}
+	var fieldPayloads [][]byte
+	var body []byte
+	if bodyIndex != -1 {
+		fieldPayloads = payload[:bodyIndex]
+		body = lo.Flatten(payload[bodyIndex+1:])
+	} else {
+		fieldPayloads = payload[:]
+	}
+
+	var incompleteField bool
+	fields := make(Fields)
+	for _, chunk := range lo.Chunk(fieldPayloads, 2) {
+		if len(chunk) != 2 {
+			incompleteField = true
+			break
+		}
+		key := chunk[0]
+		value := chunk[1]
+		// key cannot be empty, as checked by bodyIndex above
+		tag := Tag(key[0])
+		fields[tag] = append(fields[tag], value)
+	}
+
+	var duplicateField bool
+	for _, values := range fields {
+		if len(values) > 1 {
+			duplicateField = true
+			break
+		}
+	}
+
+	rawContentEncoding := fields.Take(TagContentEncoding)
+	rawContentType := fields.Take(TagContentType)
+	rawDelegate := fields.Take(TagDelegate)
+	rawMetadata := fields.Take(TagMetadata)
+	rawMetaprotocol := fields.Take(TagMetaprotocol)
+	rawParent := fields.Take(TagParent)
+	rawPointer := fields.Take(TagPointer)
+
+	unrecognizedEvenField := lo.SomeBy(lo.Keys(fields), func(key Tag) bool {
+		return key%2 == 0
+	})
+
+	var delegate, parent *InscriptionId
+	inscriptionId, err := NewInscriptionIdFromString(string(rawDelegate))
+	if err == nil {
+		delegate = &inscriptionId
+	}
+	inscriptionId, err = NewInscriptionIdFromString(string(rawParent))
+	if err == nil {
+		parent = &inscriptionId
+	}
+
+	var pointer *uint64
+	// if rawPointer is not nil and fits in uint64
+	if rawPointer != nil && (len(rawPointer) <= 8 || lo.EveryBy(rawPointer[8:], func(value byte) bool {
+		return value != 0
+	})) {
+		// pad zero bytes to 8 bytes
+		if len(rawPointer) < 8 {
+			rawPointer = append(rawPointer, make([]byte, 8-len(rawPointer))...)
+		}
+		pointer = lo.ToPtr(binary.LittleEndian.Uint64(rawPointer))
+	}
+
+	inscription := Inscription{
+		Content:         body,
+		ContentEncoding: string(rawContentEncoding),
+		ContentType:     string(rawContentType),
+		Delegate:        delegate,
+		Metadata:        rawMetadata,
+		Metaprotocol:    string(rawMetaprotocol),
+		Parent:          parent,
+		Pointer:         pointer,
+	}
+	return &Envelope{
+		Inscription:           inscription,
+		InputIndex:            uint32(inputIndex),
+		Offset:                offset,
+		PushNum:               pushNum,
+		Stutter:               stuttered,
+		IncompleteField:       incompleteField,
+		DuplicateField:        duplicateField,
+		UnrecognizedEvenField: unrecognizedEvenField,
+	}, false
+}
+
+type Fields map[Tag][][]byte
+
+func (fields Fields) Take(tag Tag) []byte {
+	values, ok := fields[tag]
+	if !ok {
+		return nil
+	}
+	if tag.IsChunked() {
+		delete(fields, tag)
+		return lo.Flatten(values)
+	} else {
+		first := values[0]
+		values = values[1:]
+		if len(values) == 0 {
+			delete(fields, tag)
+		} else {
+			fields[tag] = values
+		}
+		return first
+	}
+}
+
+func extractTapScript(witness [][]byte) (txscript.ScriptTokenizer, bool) {
+	witness = removeAnnexFromWitness(witness)
+	if len(witness) < 2 {
+		return txscript.ScriptTokenizer{}, false
+	}
+	script := witness[len(witness)-2]
+
+	return txscript.MakeScriptTokenizer(0, script), true
+}
+
+func removeAnnexFromWitness(witness [][]byte) [][]byte {
+	if len(witness) >= 2 && len(witness[len(witness)-1]) > 0 && witness[len(witness)-1][0] == txscript.TaprootAnnexTag {
+		return witness[:len(witness)-1]
+	}
+	return witness
+}

modules/brc20/internal/ordinals/envelope_test.go

@@ -0,0 +1,742 @@
+package ordinals
+
+import (
+	"testing"
+
+	"github.com/Cleverse/go-utilities/utils"
+	"github.com/btcsuite/btcd/txscript"
+	"github.com/btcsuite/btcd/wire"
+	"github.com/gaze-network/indexer-network/core/types"
+	"github.com/samber/lo"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestParseEnvelopesFromTx(t *testing.T) {
+	testTx := func(t *testing.T, tx *types.Transaction, expected []*Envelope) {
+		t.Helper()
+
+		envelopes := ParseEnvelopesFromTx(tx)
+		assert.Equal(t, expected, envelopes)
+	}
+	testParseWitness := func(t *testing.T, tapScript []byte, expected []*Envelope) {
+		t.Helper()
+
+		tx := &types.Transaction{
+			Version:  2,
+			LockTime: 0,
+			TxIn: []*types.TxIn{
+				{
+					Witness: wire.TxWitness{
+						tapScript,
+						{},
+					},
+				},
+			},
+		}
+		testTx(t, tx, expected)
+	}
+	testEnvelope := func(t *testing.T, payload [][]byte, expected []*Envelope) {
+		t.Helper()
+
+		builder := NewPushScriptBuilder().
+			AddOp(txscript.OP_FALSE).
+			AddOp(txscript.OP_IF)
+		for _, data := range payload {
+			builder.AddData(data)
+		}
+		builder.AddOp(txscript.OP_ENDIF)
+		script, err := builder.Script()
+		assert.NoError(t, err)
+
+		testParseWitness(
+			t,
+			script,
+			expected,
+		)
+	}
+
+	t.Run("empty_witness", func(t *testing.T) {
+		testTx(t, &types.Transaction{
+			Version:  2,
+			LockTime: 0,
+			TxIn: []*types.TxIn{{
+				Witness: wire.TxWitness{},
+			}},
+		}, []*Envelope{})
+	})
+	t.Run("ignore_key_path_spends", func(t *testing.T) {
+		testTx(t, &types.Transaction{
+			Version:  2,
+			LockTime: 0,
+			TxIn: []*types.TxIn{{
+				Witness: wire.TxWitness{
+					utils.Must(NewPushScriptBuilder().
+						AddOp(txscript.OP_FALSE).
+						AddOp(txscript.OP_IF).
+						AddData(protocolId).
+						AddOp(txscript.OP_ENDIF).
+						Script()),
+				},
+			}},
+		}, []*Envelope{})
+	})
+	t.Run("ignore_key_path_spends_with_annex", func(t *testing.T) {
+		testTx(t, &types.Transaction{
+			Version:  2,
+			LockTime: 0,
+			TxIn: []*types.TxIn{{
+				Witness: wire.TxWitness{
+					utils.Must(NewPushScriptBuilder().
+						AddOp(txscript.OP_FALSE).
+						AddOp(txscript.OP_IF).
+						AddData(protocolId).
+						AddOp(txscript.OP_ENDIF).
+						Script()),
+					[]byte{txscript.TaprootAnnexTag},
+				},
+			}},
+		}, []*Envelope{})
+	})
+	t.Run("parse_from_tapscript", func(t *testing.T) {
+		testParseWitness(
+			t,
+			utils.Must(NewPushScriptBuilder().
+				AddOp(txscript.OP_FALSE).
+				AddOp(txscript.OP_IF).
+				AddData(protocolId).
+				AddOp(txscript.OP_ENDIF).
+				Script()),
+			[]*Envelope{{}},
+		)
+	})
+	t.Run("ignore_unparsable_scripts", func(t *testing.T) {
+		script := utils.Must(NewPushScriptBuilder().
+			AddOp(txscript.OP_FALSE).
+			AddOp(txscript.OP_IF).
+			AddData(protocolId).
+			AddOp(txscript.OP_ENDIF).
+			Script())
+
+		script = append(script, 0x01)
+		testParseWitness(
+			t,
+			script,
+			[]*Envelope{
+				{},
+			},
+		)
+	})
+	t.Run("no_inscription", func(t *testing.T) {
+		testParseWitness(
+			t,
+			utils.Must(NewPushScriptBuilder().
+				Script()),
+			[]*Envelope{},
+		)
+	})
+	t.Run("duplicate_field", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagNop.Bytes(),
+				{},
+				TagNop.Bytes(),
+				{},
+			},
+			[]*Envelope{
+				{
+					DuplicateField: true,
+				},
+			},
+		)
+	})
+	t.Run("with_content_type", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagContentType.Bytes(),
+				[]byte("text/plain;charset=utf-8"),
+				TagBody.Bytes(),
+				[]byte("ord"),
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Content:     []byte("ord"),
+						ContentType: "text/plain;charset=utf-8",
+					},
+				},
+			},
+		)
+	})
+	t.Run("with_content_encoding", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagContentType.Bytes(),
+				[]byte("text/plain;charset=utf-8"),
+				TagContentEncoding.Bytes(),
+				[]byte("br"),
+				TagBody.Bytes(),
+				[]byte("ord"),
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Content:         []byte("ord"),
+						ContentType:     "text/plain;charset=utf-8",
+						ContentEncoding: "br",
+					},
+				},
+			},
+		)
+	})
+	t.Run("with_unknown_tag", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagContentType.Bytes(),
+				[]byte("text/plain;charset=utf-8"),
+				TagNop.Bytes(),
+				[]byte("bar"),
+				TagBody.Bytes(),
+				[]byte("ord"),
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Content:     []byte("ord"),
+						ContentType: "text/plain;charset=utf-8",
+					},
+				},
+			},
+		)
+	})
+	t.Run("no_body", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagContentType.Bytes(),
+				[]byte("text/plain;charset=utf-8"),
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						ContentType: "text/plain;charset=utf-8",
+					},
+				},
+			},
+		)
+	})
+	t.Run("no_content_type", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagBody.Bytes(),
+				[]byte("foo"),
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Content: []byte("foo"),
+					},
+				},
+			},
+		)
+	})
+	t.Run("valid_body_in_multiple_pushes", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagContentType.Bytes(),
+				[]byte("text/plain;charset=utf-8"),
+				TagBody.Bytes(),
+				[]byte("foo"),
+				[]byte("bar"),
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Content:     []byte("foobar"),
+						ContentType: "text/plain;charset=utf-8",
+					},
+				},
+			},
+		)
+	})
+	t.Run("valid_body_in_zero_pushes", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagContentType.Bytes(),
+				[]byte("text/plain;charset=utf-8"),
+				TagBody.Bytes(),
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Content:     []byte(""),
+						ContentType: "text/plain;charset=utf-8",
+					},
+				},
+			},
+		)
+	})
+	t.Run("valid_body_in_multiple_empty_pushes", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagContentType.Bytes(),
+				[]byte("text/plain;charset=utf-8"),
+				TagBody.Bytes(),
+				{},
+				{},
+				{},
+				{},
+				{},
+				{},
+				{},
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Content:     []byte(""),
+						ContentType: "text/plain;charset=utf-8",
+					},
+				},
+			},
+		)
+	})
+	t.Run("valid_ignore_trailing", func(t *testing.T) {
+		testParseWitness(
+			t,
+			utils.Must(NewPushScriptBuilder().
+				AddOp(txscript.OP_FALSE).
+				AddOp(txscript.OP_IF).
+				AddData(protocolId).
+				AddData(TagContentType.Bytes()).
+				AddData([]byte("text/plain;charset=utf-8")).
+				AddData(TagBody.Bytes()).
+				AddData([]byte("ord")).
+				AddOp(txscript.OP_ENDIF).
+				AddOp(txscript.OP_CHECKSIG).
+				Script()),
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Content:     []byte("ord"),
+						ContentType: "text/plain;charset=utf-8",
+					},
+				},
+			},
+		)
+	})
+	t.Run("valid_ignore_preceding", func(t *testing.T) {
+		testParseWitness(
+			t,
+			utils.Must(NewPushScriptBuilder().
+				AddOp(txscript.OP_CHECKSIG).
+				AddOp(txscript.OP_FALSE).
+				AddOp(txscript.OP_IF).
+				AddData(protocolId).
+				AddData(TagContentType.Bytes()).
+				AddData([]byte("text/plain;charset=utf-8")).
+				AddData(TagBody.Bytes()).
+				AddData([]byte("ord")).
+				AddOp(txscript.OP_ENDIF).
+				Script()),
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Content:     []byte("ord"),
+						ContentType: "text/plain;charset=utf-8",
+					},
+				},
+			},
+		)
+	})
+	t.Run("multiple_inscriptions_in_a_single_witness", func(t *testing.T) {
+		testParseWitness(
+			t,
+			utils.Must(NewPushScriptBuilder().
+				AddOp(txscript.OP_FALSE).
+				AddOp(txscript.OP_IF).
+				AddData(protocolId).
+				AddData(TagContentType.Bytes()).
+				AddData([]byte("text/plain;charset=utf-8")).
+				AddData(TagBody.Bytes()).
+				AddData([]byte("foo")).
+				AddOp(txscript.OP_ENDIF).
+				AddOp(txscript.OP_FALSE).
+				AddOp(txscript.OP_IF).
+				AddData(protocolId).
+				AddData(TagContentType.Bytes()).
+				AddData([]byte("text/plain;charset=utf-8")).
+				AddData(TagBody.Bytes()).
+				AddData([]byte("bar")).
+				AddOp(txscript.OP_ENDIF).
+				Script()),
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Content:     []byte("foo"),
+						ContentType: "text/plain;charset=utf-8",
+					},
+				},
+				{
+					Inscription: Inscription{
+						Content:     []byte("bar"),
+						ContentType: "text/plain;charset=utf-8",
+					},
+					Offset: 1,
+				},
+			},
+		)
+	})
+	t.Run("invalid_utf8_does_not_render_inscription_invalid", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagContentType.Bytes(),
+				[]byte("text/plain;charset=utf-8"),
+				TagBody.Bytes(),
+				{0b10000000},
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Content:     []byte{0b10000000},
+						ContentType: "text/plain;charset=utf-8",
+					},
+				},
+			},
+		)
+	})
+	t.Run("no_endif", func(t *testing.T) {
+		testParseWitness(
+			t,
+			utils.Must(NewPushScriptBuilder().
+				AddOp(txscript.OP_FALSE).
+				AddOp(txscript.OP_IF).
+				AddData(protocolId).
+				Script()),
+			[]*Envelope{},
+		)
+	})
+	t.Run("no_op_false", func(t *testing.T) {
+		testParseWitness(
+			t,
+			utils.Must(NewPushScriptBuilder().
+				AddOp(txscript.OP_IF).
+				AddData(protocolId).
+				AddOp(txscript.OP_ENDIF).
+				Script()),
+			[]*Envelope{},
+		)
+	})
+	t.Run("empty_envelope", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{},
+			[]*Envelope{},
+		)
+	})
+	t.Run("wrong_protocol_identifier", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				[]byte("foo"),
+			},
+			[]*Envelope{},
+		)
+	})
+	t.Run("extract_from_second_input", func(t *testing.T) {
+		testTx(
+			t,
+			&types.Transaction{
+				Version:  2,
+				LockTime: 0,
+				TxIn: []*types.TxIn{{}, {
+					Witness: wire.TxWitness{
+						utils.Must(NewPushScriptBuilder().
+							AddOp(txscript.OP_FALSE).
+							AddOp(txscript.OP_IF).
+							AddData(protocolId).
+							AddData(TagContentType.Bytes()).
+							AddData([]byte("text/plain;charset=utf-8")).
+							AddData(TagBody.Bytes()).
+							AddData([]byte("ord")).
+							AddOp(txscript.OP_ENDIF).
+							Script(),
+						),
+						{},
+					},
+				}},
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Content:     []byte("ord"),
+						ContentType: "text/plain;charset=utf-8",
+					},
+					InputIndex: 1,
+				},
+			},
+		)
+	})
+	t.Run("inscribe_png", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagContentType.Bytes(),
+				[]byte("image/png"),
+				TagBody.Bytes(),
+				{0x01, 0x02, 0x03},
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Content:     []byte{0x01, 0x02, 0x03},
+						ContentType: "image/png",
+					},
+				},
+			},
+		)
+	})
+	t.Run("unknown_odd_fields", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagNop.Bytes(),
+				{0x00},
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{},
+				},
+			},
+		)
+	})
+	t.Run("unknown_even_fields", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagUnbound.Bytes(),
+				{0x00},
+			},
+			[]*Envelope{
+				{
+					Inscription:           Inscription{},
+					UnrecognizedEvenField: true,
+				},
+			},
+		)
+	})
+	t.Run("pointer_field_is_recognized", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagPointer.Bytes(),
+				{0x01},
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Pointer: lo.ToPtr(uint64(1)),
+					},
+				},
+			},
+		)
+	})
+	t.Run("duplicate_pointer_field_makes_inscription_unbound", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagPointer.Bytes(),
+				{0x01},
+				TagPointer.Bytes(),
+				{0x00},
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Pointer: lo.ToPtr(uint64(1)),
+					},
+					DuplicateField:        true,
+					UnrecognizedEvenField: true,
+				},
+			},
+		)
+	})
+	t.Run("incomplete_field", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagNop.Bytes(),
+			},
+			[]*Envelope{
+				{
+					Inscription:     Inscription{},
+					IncompleteField: true,
+				},
+			},
+		)
+	})
+	t.Run("metadata_is_parsed_correctly", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagMetadata.Bytes(),
+				{},
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Metadata: []byte{},
+					},
+				},
+			},
+		)
+	})
+	t.Run("metadata_is_parsed_correctly_from_chunks", func(t *testing.T) {
+		testEnvelope(
+			t,
+			[][]byte{
+				protocolId,
+				TagMetadata.Bytes(),
+				{0x00},
+				TagMetadata.Bytes(),
+				{0x01},
+			},
+			[]*Envelope{
+				{
+					Inscription: Inscription{
+						Metadata: []byte{0x00, 0x01},
+					},
+					DuplicateField: true,
+				},
+			},
+		)
+	})
+	t.Run("pushnum_opcodes_are_parsed_correctly", func(t *testing.T) {
+		pushNumOpCodes := map[byte][]byte{
+			txscript.OP_1NEGATE: {0x81},
+			txscript.OP_1:       {0x01},
+			txscript.OP_2:       {0x02},
+			txscript.OP_3:       {0x03},
+			txscript.OP_4:       {0x04},
+			txscript.OP_5:       {0x05},
+			txscript.OP_6:       {0x06},
+			txscript.OP_7:       {0x07},
+			txscript.OP_8:       {0x08},
+			txscript.OP_9:       {0x09},
+			txscript.OP_10:      {0x10},
+			txscript.OP_11:      {0x11},
+			txscript.OP_12:      {0x12},
+			txscript.OP_13:      {0x13},
+			txscript.OP_14:      {0x14},
+			txscript.OP_15:      {0x15},
+			txscript.OP_16:      {0x16},
+		}
+		for opCode, value := range pushNumOpCodes {
+			script := utils.Must(NewPushScriptBuilder().
+				AddOp(txscript.OP_FALSE).
+				AddOp(txscript.OP_IF).
+				AddData(protocolId).
+				AddData(TagBody.Bytes()).
+				AddOp(opCode).
+				AddOp(txscript.OP_ENDIF).
+				Script())
+
+			testParseWitness(
+				t,
+				script,
+				[]*Envelope{
+					{
+						Inscription: Inscription{
+							Content: value,
+						},
+						PushNum: true,
+					},
+				},
+			)
+		}
+	})
+	t.Run("stuttering", func(t *testing.T) {
+		script := utils.Must(NewPushScriptBuilder().
+			AddOp(txscript.OP_FALSE).
+			AddOp(txscript.OP_FALSE).
+			AddOp(txscript.OP_IF).
+			AddData(protocolId).
+			AddOp(txscript.OP_ENDIF).
+			Script())
+		testParseWitness(
+			t,
+			script,
+			[]*Envelope{
+				{
+					Inscription: Inscription{},
+					Stutter:     true,
+				},
+			},
+		)
+
+		script = utils.Must(NewPushScriptBuilder().
+			AddOp(txscript.OP_FALSE).
+			AddOp(txscript.OP_IF).
+			AddOp(txscript.OP_FALSE).
+			AddOp(txscript.OP_IF).
+			AddOp(txscript.OP_FALSE).
+			AddOp(txscript.OP_IF).
+			AddData(protocolId).
+			AddOp(txscript.OP_ENDIF).
+			Script())
+		testParseWitness(
+			t,
+			script,
+			[]*Envelope{
+				{
+					Inscription: Inscription{},
+					Stutter:     true,
+				},
+			},
+		)
+
+		script = utils.Must(NewPushScriptBuilder().
+			AddOp(txscript.OP_FALSE).
+			AddOp(txscript.OP_FALSE).
+			AddOp(txscript.OP_AND).
+			AddOp(txscript.OP_FALSE).
+			AddOp(txscript.OP_IF).
+			AddData(protocolId).
+			AddOp(txscript.OP_ENDIF).
+			Script())
+		testParseWitness(
+			t,
+			script,
+			[]*Envelope{
+				{
+					Inscription: Inscription{},
+					Stutter:     false,
+				},
+			},
+		)
+	})
+}

modules/brc20/internal/ordinals/height.go

@@ -0,0 +1,13 @@
+package ordinals
+
+import "github.com/gaze-network/indexer-network/common"
+
+func GetJubileeHeight(network common.Network) uint64 {
+	switch network {
+	case common.NetworkMainnet:
+		return 824544
+	case common.NetworkTestnet:
+		return 2544192
+	}
+	panic("unsupported network")
+}

modules/brc20/internal/ordinals/inscription.go

@@ -0,0 +1,27 @@
+package ordinals
+
+import "time"
+
+type Inscription struct {
+	Content         []byte
+	ContentEncoding string
+	ContentType     string
+	Delegate        *InscriptionId
+	Metadata        []byte
+	Metaprotocol    string
+	Parent          *InscriptionId // in 0.14, inscription has only one parent
+	Pointer         *uint64
+}
+
+// TODO: refactor ordinals.InscriptionEntry to entity.InscriptionEntry
+type InscriptionEntry struct {
+	Id              InscriptionId
+	Number          int64
+	SequenceNumber  uint64
+	Cursed          bool
+	CursedForBRC20  bool
+	CreatedAt       time.Time
+	CreatedAtHeight uint64
+	Inscription     Inscription
+	TransferCount   uint32
+}

modules/brc20/internal/ordinals/inscription_id.go

@@ -0,0 +1,67 @@
+package ordinals
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/cockroachdb/errors"
+)
+
+type InscriptionId struct {
+	TxHash chainhash.Hash
+	Index  uint32
+}
+
+func (i InscriptionId) String() string {
+	return fmt.Sprintf("%si%d", i.TxHash.String(), i.Index)
+}
+
+func NewInscriptionId(txHash chainhash.Hash, index uint32) InscriptionId {
+	return InscriptionId{
+		TxHash: txHash,
+		Index:  index,
+	}
+}
+
+var ErrInscriptionIdInvalidSeparator = fmt.Errorf("invalid inscription id: must contain exactly one separator")
+
+func NewInscriptionIdFromString(s string) (InscriptionId, error) {
+	parts := strings.SplitN(s, "i", 2)
+	if len(parts) != 2 {
+		return InscriptionId{}, errors.WithStack(ErrInscriptionIdInvalidSeparator)
+	}
+	txHash, err := chainhash.NewHashFromStr(parts[0])
+	if err != nil {
+		return InscriptionId{}, errors.Wrap(err, "invalid inscription id: cannot parse txHash")
+	}
+	index, err := strconv.ParseUint(parts[1], 10, 32)
+	if err != nil {
+		return InscriptionId{}, errors.Wrap(err, "invalid inscription id: cannot parse index")
+	}
+	return InscriptionId{
+		TxHash: *txHash,
+		Index:  uint32(index),
+	}, nil
+}
+
+// MarshalJSON implements json.Marshaler
+func (r InscriptionId) MarshalJSON() ([]byte, error) {
+	return []byte(`"` + r.String() + `"`), nil
+}
+
+// UnmarshalJSON implements json.Unmarshaler
+func (r *InscriptionId) UnmarshalJSON(data []byte) error {
+	// data must be quoted
+	if len(data) < 2 || data[0] != '"' || data[len(data)-1] != '"' {
+		return errors.New("must be string")
+	}
+	data = data[1 : len(data)-1]
+	parsed, err := NewInscriptionIdFromString(string(data))
+	if err != nil {
+		return errors.WithStack(err)
+	}
+	*r = parsed
+	return nil
+}

modules/brc20/internal/ordinals/inscription_id_test.go

@@ -0,0 +1,109 @@
+package ordinals
+
+import (
+	"testing"
+
+	"github.com/Cleverse/go-utilities/utils"
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewInscriptionIdFromString(t *testing.T) {
+	tests := []struct {
+		name        string
+		input       string
+		expected    InscriptionId
+		shouldError bool
+	}{
+		{
+			name:  "valid inscription id 1",
+			input: "1111111111111111111111111111111111111111111111111111111111111111i0",
+			expected: InscriptionId{
+				TxHash: *utils.Must(chainhash.NewHashFromStr("1111111111111111111111111111111111111111111111111111111111111111")),
+				Index:  0,
+			},
+		},
+		{
+			name:  "valid inscription id 2",
+			input: "1111111111111111111111111111111111111111111111111111111111111111i1",
+			expected: InscriptionId{
+				TxHash: *utils.Must(chainhash.NewHashFromStr("1111111111111111111111111111111111111111111111111111111111111111")),
+				Index:  1,
+			},
+		},
+		{
+			name:  "valid inscription id 3",
+			input: "1111111111111111111111111111111111111111111111111111111111111111i4294967295",
+			expected: InscriptionId{
+				TxHash: *utils.Must(chainhash.NewHashFromStr("1111111111111111111111111111111111111111111111111111111111111111")),
+				Index:  4294967295,
+			},
+		},
+		{
+			name:        "error no separator",
+			input:       "abc",
+			shouldError: true,
+		},
+		{
+			name:        "error invalid index",
+			input:       "xyzixyz",
+			shouldError: true,
+		},
+		{
+			name:        "error invalid index",
+			input:       "abcixyz",
+			shouldError: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			actual, err := NewInscriptionIdFromString(tt.input)
+			if tt.shouldError {
+				assert.Error(t, err)
+			} else {
+				assert.NoError(t, err)
+				assert.Equal(t, tt.expected, actual)
+			}
+		})
+	}
+}
+
+func TestInscriptionIdString(t *testing.T) {
+	tests := []struct {
+		name     string
+		expected string
+		input    InscriptionId
+	}{
+		{
+			name:     "valid inscription id 1",
+			expected: "1111111111111111111111111111111111111111111111111111111111111111i0",
+			input: InscriptionId{
+				TxHash: *utils.Must(chainhash.NewHashFromStr("1111111111111111111111111111111111111111111111111111111111111111")),
+				Index:  0,
+			},
+		},
+		{
+			name:     "valid inscription id 2",
+			expected: "1111111111111111111111111111111111111111111111111111111111111111i1",
+			input: InscriptionId{
+				TxHash: *utils.Must(chainhash.NewHashFromStr("1111111111111111111111111111111111111111111111111111111111111111")),
+				Index:  1,
+			},
+		},
+		{
+			name:     "valid inscription id 3",
+			expected: "1111111111111111111111111111111111111111111111111111111111111111i4294967295",
+			input: InscriptionId{
+				TxHash: *utils.Must(chainhash.NewHashFromStr("1111111111111111111111111111111111111111111111111111111111111111")),
+				Index:  4294967295,
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			assert.Equal(t, tt.expected, tt.input.String())
+		})
+	}
+}

modules/brc20/internal/ordinals/sat_point.go

@@ -0,0 +1,68 @@
+package ordinals
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/btcsuite/btcd/wire"
+	"github.com/cockroachdb/errors"
+)
+
+type SatPoint struct {
+	OutPoint wire.OutPoint
+	Offset   uint64
+}
+
+func (s SatPoint) String() string {
+	return fmt.Sprintf("%s:%d", s.OutPoint.String(), s.Offset)
+}
+
+var ErrSatPointInvalidSeparator = fmt.Errorf("invalid sat point: must contain exactly two separators")
+
+func NewSatPointFromString(s string) (SatPoint, error) {
+	parts := strings.SplitN(s, ":", 3)
+	if len(parts) != 3 {
+		return SatPoint{}, errors.WithStack(ErrSatPointInvalidSeparator)
+	}
+	txHash, err := chainhash.NewHashFromStr(parts[0])
+	if err != nil {
+		return SatPoint{}, errors.Wrap(err, "invalid inscription id: cannot parse txHash")
+	}
+	index, err := strconv.ParseUint(parts[1], 10, 32)
+	if err != nil {
+		return SatPoint{}, errors.Wrap(err, "invalid inscription id: cannot parse index")
+	}
+	offset, err := strconv.ParseUint(parts[2], 10, 64)
+	if err != nil {
+		return SatPoint{}, errors.Wrap(err, "invalid sat point: cannot parse offset")
+	}
+	return SatPoint{
+		OutPoint: wire.OutPoint{
+			Hash:  *txHash,
+			Index: uint32(index),
+		},
+		Offset: offset,
+	}, nil
+}
+
+// MarshalJSON implements json.Marshaler
+func (r SatPoint) MarshalJSON() ([]byte, error) {
+	return []byte(`"` + r.String() + `"`), nil
+}
+
+// UnmarshalJSON implements json.Unmarshaler
+func (r *SatPoint) UnmarshalJSON(data []byte) error {
+	// data must be quoted
+	if len(data) < 2 || data[0] != '"' || data[len(data)-1] != '"' {
+		return errors.New("must be string")
+	}
+	data = data[1 : len(data)-1]
+	parsed, err := NewSatPointFromString(string(data))
+	if err != nil {
+		return errors.WithStack(err)
+	}
+	*r = parsed
+	return nil
+}

modules/brc20/internal/ordinals/sat_point_test.go

@@ -0,0 +1,89 @@
+package ordinals
+
+import (
+	"testing"
+
+	"github.com/Cleverse/go-utilities/utils"
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/btcsuite/btcd/wire"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewSatPointFromString(t *testing.T) {
+	tests := []struct {
+		name        string
+		input       string
+		expected    SatPoint
+		shouldError bool
+	}{
+		{
+			name:  "valid sat point",
+			input: "1111111111111111111111111111111111111111111111111111111111111111:1:2",
+			expected: SatPoint{
+				OutPoint: wire.OutPoint{
+					Hash:  *utils.Must(chainhash.NewHashFromStr("1111111111111111111111111111111111111111111111111111111111111111")),
+					Index: 1,
+				},
+				Offset: 2,
+			},
+		},
+		{
+			name:        "error no separator",
+			input:       "abc",
+			shouldError: true,
+		},
+		{
+			name:        "error invalid output index",
+			input:       "abc:xyz",
+			shouldError: true,
+		},
+		{
+			name:        "error no offset",
+			input:       "1111111111111111111111111111111111111111111111111111111111111111:1",
+			shouldError: true,
+		},
+		{
+			name:        "error invalid offset",
+			input:       "1111111111111111111111111111111111111111111111111111111111111111:1:foo",
+			shouldError: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			actual, err := NewSatPointFromString(tt.input)
+			if tt.shouldError {
+				assert.Error(t, err)
+			} else {
+				assert.NoError(t, err)
+				assert.Equal(t, tt.expected, actual)
+			}
+		})
+	}
+}
+
+func TestSatPointString(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    SatPoint
+		expected string
+	}{
+		{
+			name: "valid sat point",
+			input: SatPoint{
+				OutPoint: wire.OutPoint{
+					Hash:  *utils.Must(chainhash.NewHashFromStr("1111111111111111111111111111111111111111111111111111111111111111")),
+					Index: 1,
+				},
+				Offset: 2,
+			},
+			expected: "1111111111111111111111111111111111111111111111111111111111111111:1:2",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			assert.Equal(t, tt.expected, tt.input.String())
+		})
+	}
+}

modules/brc20/internal/ordinals/script_builder.go

@@ -0,0 +1,170 @@
+package ordinals
+
+import (
+	"encoding/binary"
+	"fmt"
+
+	"github.com/btcsuite/btcd/txscript"
+)
+
+// PushScriptBuilder is a helper to build scripts that requires data pushes to use OP_PUSHDATA* or OP_DATA_* opcodes only.
+// Empty data pushes are still encoded as OP_0.
+type PushScriptBuilder struct {
+	script []byte
+	err    error
+}
+
+func NewPushScriptBuilder() *PushScriptBuilder {
+	return &PushScriptBuilder{}
+}
+
+// canonicalDataSize returns the number of bytes the canonical encoding of the
+// data will take.
+func canonicalDataSize(data []byte) int {
+	dataLen := len(data)
+
+	// When the data consists of a single number that can be represented
+	// by one of the "small integer" opcodes, that opcode will be instead
+	// of a data push opcode followed by the number.
+	if dataLen == 0 {
+		return 1
+	}
+
+	if dataLen < txscript.OP_PUSHDATA1 {
+		return 1 + dataLen
+	} else if dataLen <= 0xff {
+		return 2 + dataLen
+	} else if dataLen <= 0xffff {
+		return 3 + dataLen
+	}
+
+	return 5 + dataLen
+}
+
+func pushDataToBytes(data []byte) []byte {
+	if len(data) == 0 {
+		return []byte{txscript.OP_0}
+	}
+	script := make([]byte, 0)
+	dataLen := len(data)
+	if dataLen < txscript.OP_PUSHDATA1 {
+		script = append(script, byte(txscript.OP_DATA_1-1+dataLen))
+	} else if dataLen <= 0xff {
+		script = append(script, txscript.OP_PUSHDATA1, byte(dataLen))
+	} else if dataLen <= 0xffff {
+		buf := make([]byte, 2)
+		binary.LittleEndian.PutUint16(buf, uint16(dataLen))
+		script = append(script, txscript.OP_PUSHDATA2)
+		script = append(script, buf...)
+	} else {
+		buf := make([]byte, 4)
+		binary.LittleEndian.PutUint32(buf, uint32(dataLen))
+		script = append(script, txscript.OP_PUSHDATA4)
+		script = append(script, buf...)
+	}
+	// Append the actual data.
+	script = append(script, data...)
+	return script
+}
+
+// AddData pushes the passed data to the end of the script.  It automatically
+// chooses canonical opcodes depending on the length of the data.  A zero length
+// buffer will lead to a push of empty data onto the stack (OP_0) and any push
+// of data greater than MaxScriptElementSize will not modify the script since
+// that is not allowed by the script engine.  Also, the script will not be
+// modified if pushing the data would cause the script to exceed the maximum
+// allowed script engine size.
+func (b *PushScriptBuilder) AddData(data []byte) *PushScriptBuilder {
+	if b.err != nil {
+		return b
+	}
+	// Pushes that would cause the script to exceed the largest allowed
+	// script size would result in a non-canonical script.
+	dataSize := canonicalDataSize(data)
+	if len(b.script)+dataSize > txscript.MaxScriptSize {
+		str := fmt.Sprintf("adding %d bytes of data would exceed the "+
+			"maximum allowed canonical script length of %d",
+			dataSize, txscript.MaxScriptSize)
+		b.err = txscript.ErrScriptNotCanonical(str)
+		return b
+	}
+
+	// Pushes larger than the max script element size would result in a
+	// script that is not canonical.
+	dataLen := len(data)
+	if dataLen > txscript.MaxScriptElementSize {
+		str := fmt.Sprintf("adding a data element of %d bytes would "+
+			"exceed the maximum allowed script element size of %d",
+			dataLen, txscript.MaxScriptElementSize)
+		b.err = txscript.ErrScriptNotCanonical(str)
+		return b
+	}
+
+	b.script = append(b.script, pushDataToBytes(data)...)
+	return b
+}
+
+// AddFullData should not typically be used by ordinary users as it does not
+// include the checks which prevent data pushes larger than the maximum allowed
+// sizes which leads to scripts that can't be executed.  This is provided for
+// testing purposes such as regression tests where sizes are intentionally made
+// larger than allowed.
+//
+// Use AddData instead.
+func (b *PushScriptBuilder) AddFullData(data []byte) *PushScriptBuilder {
+	if b.err != nil {
+		return b
+	}
+
+	b.script = append(b.script, pushDataToBytes(data)...)
+	return b
+}
+
+// AddOp pushes the passed opcode to the end of the script.  The script will not
+// be modified if pushing the opcode would cause the script to exceed the
+// maximum allowed script engine size.
+func (b *PushScriptBuilder) AddOp(opcode byte) *PushScriptBuilder {
+	if b.err != nil {
+		return b
+	}
+
+	// Pushes that would cause the script to exceed the largest allowed
+	// script size would result in a non-canonical script.
+	if len(b.script)+1 > txscript.MaxScriptSize {
+		str := fmt.Sprintf("adding an opcode would exceed the maximum "+
+			"allowed canonical script length of %d", txscript.MaxScriptSize)
+		b.err = txscript.ErrScriptNotCanonical(str)
+		return b
+	}
+
+	b.script = append(b.script, opcode)
+	return b
+}
+
+// AddOps pushes the passed opcodes to the end of the script.  The script will
+// not be modified if pushing the opcodes would cause the script to exceed the
+// maximum allowed script engine size.
+func (b *PushScriptBuilder) AddOps(opcodes []byte) *PushScriptBuilder {
+	if b.err != nil {
+		return b
+	}
+
+	// Pushes that would cause the script to exceed the largest allowed
+	// script size would result in a non-canonical script.
+	if len(b.script)+len(opcodes) > txscript.MaxScriptSize {
+		str := fmt.Sprintf("adding opcodes would exceed the maximum "+
+			"allowed canonical script length of %d", txscript.MaxScriptSize)
+		b.err = txscript.ErrScriptNotCanonical(str)
+		return b
+	}
+
+	b.script = append(b.script, opcodes...)
+	return b
+}
+
+// Script returns the currently built script.  When any errors occurred while
+// building the script, the script will be returned up the point of the first
+// error along with the error.
+func (b *PushScriptBuilder) Script() ([]byte, error) {
+	return b.script, b.err
+}

modules/brc20/internal/ordinals/tag.go

@@ -0,0 +1,81 @@
+package ordinals
+
+// Tags represent data fields in a runestone. Unrecognized odd tags are ignored. Unrecognized even tags produce a cenotaph.
+type Tag uint8
+
+var (
+	TagBody    = Tag(0)
+	TagPointer = Tag(2)
+	// TagUnbound is unrecognized
+	TagUnbound = Tag(66)
+
+	TagContentType     = Tag(1)
+	TagParent          = Tag(3)
+	TagMetadata        = Tag(5)
+	TagMetaprotocol    = Tag(7)
+	TagContentEncoding = Tag(9)
+	TagDelegate        = Tag(11)
+	// TagNop is unrecognized
+	TagNop = Tag(255)
+)
+
+var allTags = map[Tag]struct{}{
+	TagPointer: {},
+
+	TagContentType:     {},
+	TagParent:          {},
+	TagMetadata:        {},
+	TagMetaprotocol:    {},
+	TagContentEncoding: {},
+	TagDelegate:        {},
+}
+
+func (t Tag) IsValid() bool {
+	_, ok := allTags[t]
+	return ok
+}
+
+var chunkedTags = map[Tag]struct{}{
+	TagMetadata: {},
+}
+
+func (t Tag) IsChunked() bool {
+	_, ok := chunkedTags[t]
+	return ok
+}
+
+func (t Tag) Bytes() []byte {
+	if t == TagBody {
+		return []byte{} // body tag is empty data push
+	}
+	return []byte{byte(t)}
+}
+
+func ParseTag(input interface{}) (Tag, error) {
+	switch input := input.(type) {
+	case Tag:
+		return input, nil
+	case int:
+		return Tag(input), nil
+	case int8:
+		return Tag(input), nil
+	case int16:
+		return Tag(input), nil
+	case int32:
+		return Tag(input), nil
+	case int64:
+		return Tag(input), nil
+	case uint:
+		return Tag(input), nil
+	case uint8:
+		return Tag(input), nil
+	case uint16:
+		return Tag(input), nil
+	case uint32:
+		return Tag(input), nil
+	case uint64:
+		return Tag(input), nil
+	default:
+		panic("invalid tag input type")
+	}
+}

modules/brc20/internal/repository/postgres/brc20.go

@@ -0,0 +1,716 @@
+package postgres
+
+import (
+	"context"
+	"encoding/hex"
+
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/btcsuite/btcd/wire"
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common/errs"
+	"github.com/gaze-network/indexer-network/core/types"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/datagateway"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/entity"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/ordinals"
+	"github.com/gaze-network/indexer-network/modules/brc20/internal/repository/postgres/gen"
+	"github.com/jackc/pgx/v5"
+	"github.com/samber/lo"
+)
+
+var _ datagateway.BRC20DataGateway = (*Repository)(nil)
+
+// warning: GetLatestBlock currently returns a types.BlockHeader with only Height and Hash fields populated.
+// This is because it is known that all usage of this function only requires these fields. In the future, we may want to populate all fields for type safety.
+func (r *Repository) GetLatestBlock(ctx context.Context) (types.BlockHeader, error) {
+	block, err := r.queries.GetLatestIndexedBlock(ctx)
+	if err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			return types.BlockHeader{}, errors.WithStack(errs.NotFound)
+		}
+		return types.BlockHeader{}, errors.Wrap(err, "error during query")
+	}
+	hash, err := chainhash.NewHashFromStr(block.Hash)
+	if err != nil {
+		return types.BlockHeader{}, errors.Wrap(err, "failed to parse block hash")
+	}
+	return types.BlockHeader{
+		Height: int64(block.Height),
+		Hash:   *hash,
+	}, nil
+}
+
+// GetIndexedBlockByHeight implements datagateway.BRC20DataGateway.
+func (r *Repository) GetIndexedBlockByHeight(ctx context.Context, height int64) (*entity.IndexedBlock, error) {
+	model, err := r.queries.GetIndexedBlockByHeight(ctx, int32(height))
+	if err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			return nil, errors.WithStack(errs.NotFound)
+		}
+		return nil, errors.Wrap(err, "error during query")
+	}
+
+	indexedBlock, err := mapIndexedBlockModelToType(model)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to parse indexed block model")
+	}
+	return &indexedBlock, nil
+}
+
+func (r *Repository) GetProcessorStats(ctx context.Context) (*entity.ProcessorStats, error) {
+	model, err := r.queries.GetLatestProcessorStats(ctx)
+	if err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			return nil, errors.WithStack(errs.NotFound)
+		}
+		return nil, errors.WithStack(err)
+	}
+	stats := mapProcessorStatsModelToType(model)
+	return &stats, nil
+}
+
+func (r *Repository) GetInscriptionTransfersInOutPoints(ctx context.Context, outPoints []wire.OutPoint) (map[ordinals.SatPoint][]*entity.InscriptionTransfer, error) {
+	txHashArr := lo.Map(outPoints, func(outPoint wire.OutPoint, _ int) string {
+		return outPoint.Hash.String()
+	})
+	txOutIdxArr := lo.Map(outPoints, func(outPoint wire.OutPoint, _ int) int32 {
+		return int32(outPoint.Index)
+	})
+	models, err := r.queries.GetInscriptionTransfersInOutPoints(ctx, gen.GetInscriptionTransfersInOutPointsParams{
+		TxHashArr:   txHashArr,
+		TxOutIdxArr: txOutIdxArr,
+	})
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+	results := make(map[ordinals.SatPoint][]*entity.InscriptionTransfer)
+	for _, model := range models {
+		inscriptionTransfer, err := mapInscriptionTransferModelToType(model)
+		if err != nil {
+			return nil, errors.WithStack(err)
+		}
+		results[inscriptionTransfer.NewSatPoint] = append(results[inscriptionTransfer.NewSatPoint], &inscriptionTransfer)
+	}
+	return results, nil
+}
+
+func (r *Repository) GetInscriptionEntriesByIds(ctx context.Context, ids []ordinals.InscriptionId) (map[ordinals.InscriptionId]*ordinals.InscriptionEntry, error) {
+	idStrs := lo.Map(ids, func(id ordinals.InscriptionId, _ int) string { return id.String() })
+	models, err := r.queries.GetInscriptionEntriesByIds(ctx, idStrs)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	result := make(map[ordinals.InscriptionId]*ordinals.InscriptionEntry)
+	for _, model := range models {
+		inscriptionEntry, err := mapInscriptionEntryModelToType(model)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse inscription entry model")
+		}
+		result[inscriptionEntry.Id] = &inscriptionEntry
+	}
+	return result, nil
+}
+
+func (r *Repository) GetInscriptionNumbersByIds(ctx context.Context, ids []ordinals.InscriptionId) (map[ordinals.InscriptionId]int64, error) {
+	idStrs := lo.Map(ids, func(id ordinals.InscriptionId, _ int) string { return id.String() })
+	models, err := r.queries.GetInscriptionNumbersByIds(ctx, idStrs)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	result := make(map[ordinals.InscriptionId]int64)
+	for _, model := range models {
+		inscriptionId, err := ordinals.NewInscriptionIdFromString(model.Id)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse inscription id")
+		}
+		result[inscriptionId] = model.Number
+	}
+	return result, nil
+}
+
+func (r *Repository) GetInscriptionParentsByIds(ctx context.Context, ids []ordinals.InscriptionId) (map[ordinals.InscriptionId]ordinals.InscriptionId, error) {
+	idStrs := lo.Map(ids, func(id ordinals.InscriptionId, _ int) string { return id.String() })
+	models, err := r.queries.GetInscriptionParentsByIds(ctx, idStrs)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	result := make(map[ordinals.InscriptionId]ordinals.InscriptionId)
+	for _, model := range models {
+		if len(model.Parents) == 0 {
+			// no parent
+			continue
+		}
+		if len(model.Parents) > 1 {
+			// sanity check, should not happen since 0.14 ord supports only 1 parent
+			continue
+		}
+		inscriptionId, err := ordinals.NewInscriptionIdFromString(model.Id)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse inscription id")
+		}
+		parentId, err := ordinals.NewInscriptionIdFromString(model.Parents[0])
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse parent id")
+		}
+		result[inscriptionId] = parentId
+	}
+	return result, nil
+}
+
+func (r *Repository) GetLatestEventId(ctx context.Context) (int64, error) {
+	row, err := r.queries.GetLatestEventIds(ctx)
+	if err != nil {
+		return 0, errors.WithStack(err)
+	}
+	return max(row.EventDeployID.(int64), row.EventMintID.(int64), row.EventInscribeTransferID.(int64), row.EventTransferTransferID.(int64)), nil
+}
+
+func (r *Repository) GetBalancesBatchAtHeight(ctx context.Context, blockHeight uint64, queries []datagateway.GetBalancesBatchAtHeightQuery) (map[string]map[string]*entity.Balance, error) {
+	pkScripts := make([]string, 0)
+	ticks := make([]string, 0)
+	for _, query := range queries {
+		pkScripts = append(pkScripts, query.PkScriptHex)
+		ticks = append(ticks, query.Tick)
+	}
+	models, err := r.queries.GetBalancesBatchAtHeight(ctx, gen.GetBalancesBatchAtHeightParams{
+		PkscriptArr: pkScripts,
+		TickArr:     ticks,
+		BlockHeight: int32(blockHeight),
+	})
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	result := make(map[string]map[string]*entity.Balance)
+	for _, model := range models {
+		balance, err := mapBalanceModelToType(model)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse balance model")
+		}
+		if _, ok := result[model.Pkscript]; !ok {
+			result[model.Pkscript] = make(map[string]*entity.Balance)
+		}
+		result[model.Pkscript][model.Tick] = &balance
+	}
+	return result, nil
+}
+
+func (r *Repository) GetEventInscribeTransfersByInscriptionIds(ctx context.Context, ids []ordinals.InscriptionId) (map[ordinals.InscriptionId]*entity.EventInscribeTransfer, error) {
+	idStrs := lo.Map(ids, func(id ordinals.InscriptionId, _ int) string { return id.String() })
+	models, err := r.queries.GetEventInscribeTransfersByInscriptionIds(ctx, idStrs)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	result := make(map[ordinals.InscriptionId]*entity.EventInscribeTransfer)
+	for _, model := range models {
+		event, err := mapEventInscribeTransferModelToType(model)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse event inscribe transfer model")
+		}
+		result[event.InscriptionId] = &event
+	}
+	return result, nil
+}
+
+func (r *Repository) GetTickEntriesByTicks(ctx context.Context, ticks []string) (map[string]*entity.TickEntry, error) {
+	models, err := r.queries.GetTickEntriesByTicks(ctx, ticks)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	result := make(map[string]*entity.TickEntry)
+	for _, model := range models {
+		tickEntry, err := mapTickEntryModelToType(model)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse tick entry model")
+		}
+		result[tickEntry.Tick] = &tickEntry
+	}
+	return result, nil
+}
+
+func (r *Repository) GetBalancesByTick(ctx context.Context, tick string, blockHeight uint64) ([]*entity.Balance, error) {
+	models, err := r.queries.GetBalancesByTick(ctx, gen.GetBalancesByTickParams{
+		Tick:        tick,
+		BlockHeight: int32(blockHeight),
+	})
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	result := make([]*entity.Balance, 0, len(models))
+	for _, model := range models {
+		balance, err := mapBalanceModelToType(gen.Brc20Balance(model))
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse balance model")
+		}
+		result = append(result, &balance)
+	}
+	return result, nil
+}
+
+func (r *Repository) GetBalancesByPkScript(ctx context.Context, pkScript []byte, blockHeight uint64) (map[string]*entity.Balance, error) {
+	models, err := r.queries.GetBalancesByPkScript(ctx, gen.GetBalancesByPkScriptParams{
+		Pkscript:    hex.EncodeToString(pkScript),
+		BlockHeight: int32(blockHeight),
+	})
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	result := make(map[string]*entity.Balance)
+	for _, model := range models {
+		balance, err := mapBalanceModelToType(gen.Brc20Balance(model))
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse balance model")
+		}
+		result[balance.Tick] = &balance
+	}
+	return result, nil
+}
+
+func (r *Repository) GetTransferableTransfersByPkScript(ctx context.Context, pkScript []byte, blockHeight uint64) ([]*entity.EventInscribeTransfer, error) {
+	models, err := r.queries.GetTransferableTransfersByPkScript(ctx, gen.GetTransferableTransfersByPkScriptParams{
+		Pkscript:    hex.EncodeToString(pkScript),
+		BlockHeight: int32(blockHeight),
+	})
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	result := make([]*entity.EventInscribeTransfer, 0, len(models))
+	for _, model := range models {
+		ent, err := mapEventInscribeTransferModelToType(model)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse event model")
+		}
+		result = append(result, &ent)
+	}
+	return result, nil
+}
+
+func (r *Repository) GetDeployEventByTick(ctx context.Context, tick string) (*entity.EventDeploy, error) {
+	model, err := r.queries.GetDeployEventByTick(ctx, tick)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	ent, err := mapEventDeployModelToType(model)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to parse event model")
+	}
+	return &ent, nil
+}
+
+func (r *Repository) GetFirstLastInscriptionNumberByTick(ctx context.Context, tick string) (first, last int64, err error) {
+	model, err := r.queries.GetFirstLastInscriptionNumberByTick(ctx, tick)
+	if err != nil {
+		return -1, -1, errors.WithStack(err)
+	}
+	return model.FirstInscriptionNumber, model.LastInscriptionNumber, nil
+}
+
+func (r *Repository) GetDeployEvents(ctx context.Context, pkScript []byte, tick string, height uint64) ([]*entity.EventDeploy, error) {
+	models, err := r.queries.GetDeployEvents(ctx, gen.GetDeployEventsParams{
+		FilterPkScript: pkScript != nil,
+		PkScript:       hex.EncodeToString(pkScript),
+		FilterTicker:   tick != "",
+		Ticker:         tick,
+		BlockHeight:    int32(height),
+	})
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	result := make([]*entity.EventDeploy, 0, len(models))
+	for _, model := range models {
+		ent, err := mapEventDeployModelToType(model)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse event model")
+		}
+		result = append(result, &ent)
+	}
+	return result, nil
+}
+
+func (r *Repository) GetMintEvents(ctx context.Context, pkScript []byte, tick string, height uint64) ([]*entity.EventMint, error) {
+	models, err := r.queries.GetMintEvents(ctx, gen.GetMintEventsParams{
+		FilterPkScript: pkScript != nil,
+		PkScript:       hex.EncodeToString(pkScript),
+		FilterTicker:   tick != "",
+		Ticker:         tick,
+		BlockHeight:    int32(height),
+	})
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	result := make([]*entity.EventMint, 0, len(models))
+	for _, model := range models {
+		ent, err := mapEventMintModelToType(model)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse event model")
+		}
+		result = append(result, &ent)
+	}
+	return result, nil
+}
+
+func (r *Repository) GetInscribeTransferEvents(ctx context.Context, pkScript []byte, tick string, height uint64) ([]*entity.EventInscribeTransfer, error) {
+	models, err := r.queries.GetInscribeTransferEvents(ctx, gen.GetInscribeTransferEventsParams{
+		FilterPkScript: pkScript != nil,
+		PkScript:       hex.EncodeToString(pkScript),
+		FilterTicker:   tick != "",
+		Ticker:         tick,
+		BlockHeight:    int32(height),
+	})
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	result := make([]*entity.EventInscribeTransfer, 0, len(models))
+	for _, model := range models {
+		ent, err := mapEventInscribeTransferModelToType(model)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse event model")
+		}
+		result = append(result, &ent)
+	}
+	return result, nil
+}
+
+func (r *Repository) GetTransferTransferEvents(ctx context.Context, pkScript []byte, tick string, height uint64) ([]*entity.EventTransferTransfer, error) {
+	models, err := r.queries.GetTransferTransferEvents(ctx, gen.GetTransferTransferEventsParams{
+		FilterPkScript: pkScript != nil,
+		PkScript:       hex.EncodeToString(pkScript),
+		FilterTicker:   tick != "",
+		Ticker:         tick,
+		BlockHeight:    int32(height),
+	})
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
+	result := make([]*entity.EventTransferTransfer, 0, len(models))
+	for _, model := range models {
+		ent, err := mapEventTransferTransferModelToType(model)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse event model")
+		}
+		result = append(result, &ent)
+	}
+	return result, nil
+}
+
+func (r *Repository) CreateIndexedBlock(ctx context.Context, block *entity.IndexedBlock) error {
+	params := mapIndexedBlockTypeToParams(*block)
+	if err := r.queries.CreateIndexedBlock(ctx, params); err != nil {
+		return errors.WithStack(err)
+	}
+	return nil
+}
+
+func (r *Repository) CreateProcessorStats(ctx context.Context, stats *entity.ProcessorStats) error {
+	params := mapProcessorStatsTypeToParams(*stats)
+	if err := r.queries.CreateProcessorStats(ctx, params); err != nil {
+		return errors.WithStack(err)
+	}
+	return nil
+}
+
+func (r *Repository) CreateTickEntries(ctx context.Context, blockHeight uint64, entries []*entity.TickEntry) error {
+	entryParams := make([]gen.CreateTickEntriesParams, 0)
+	for _, entry := range entries {
+		params, _, err := mapTickEntryTypeToParams(*entry, blockHeight)
+		if err != nil {
+			return errors.Wrap(err, "cannot map tick entry to create params")
+		}
+		entryParams = append(entryParams, params)
+	}
+	results := r.queries.CreateTickEntries(ctx, entryParams)
+	var execErrors []error
+	results.Exec(func(i int, err error) {
+		if err != nil {
+			execErrors = append(execErrors, err)
+		}
+	})
+	if len(execErrors) > 0 {
+		return errors.Wrap(errors.Join(execErrors...), "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) CreateTickEntryStates(ctx context.Context, blockHeight uint64, entryStates []*entity.TickEntry) error {
+	entryParams := make([]gen.CreateTickEntryStatesParams, 0)
+	for _, entry := range entryStates {
+		_, params, err := mapTickEntryTypeToParams(*entry, blockHeight)
+		if err != nil {
+			return errors.Wrap(err, "cannot map tick entry to create params")
+		}
+		entryParams = append(entryParams, params)
+	}
+	results := r.queries.CreateTickEntryStates(ctx, entryParams)
+	var execErrors []error
+	results.Exec(func(i int, err error) {
+		if err != nil {
+			execErrors = append(execErrors, err)
+		}
+	})
+	if len(execErrors) > 0 {
+		return errors.Wrap(errors.Join(execErrors...), "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) CreateInscriptionEntries(ctx context.Context, blockHeight uint64, entries []*ordinals.InscriptionEntry) error {
+	inscriptionEntryParams := make([]gen.CreateInscriptionEntriesParams, 0)
+	for _, entry := range entries {
+		params, _, err := mapInscriptionEntryTypeToParams(*entry, blockHeight)
+		if err != nil {
+			return errors.Wrap(err, "cannot map inscription entry to create params")
+		}
+		inscriptionEntryParams = append(inscriptionEntryParams, params)
+	}
+	results := r.queries.CreateInscriptionEntries(ctx, inscriptionEntryParams)
+	var execErrors []error
+	results.Exec(func(i int, err error) {
+		if err != nil {
+			execErrors = append(execErrors, err)
+		}
+	})
+	if len(execErrors) > 0 {
+		return errors.Wrap(errors.Join(execErrors...), "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) CreateInscriptionEntryStates(ctx context.Context, blockHeight uint64, entryStates []*ordinals.InscriptionEntry) error {
+	inscriptionEntryStatesParams := make([]gen.CreateInscriptionEntryStatesParams, 0)
+	for _, entry := range entryStates {
+		_, params, err := mapInscriptionEntryTypeToParams(*entry, blockHeight)
+		if err != nil {
+			return errors.Wrap(err, "cannot map inscription entry to create params")
+		}
+		inscriptionEntryStatesParams = append(inscriptionEntryStatesParams, params)
+	}
+	results := r.queries.CreateInscriptionEntryStates(ctx, inscriptionEntryStatesParams)
+	var execErrors []error
+	results.Exec(func(i int, err error) {
+		if err != nil {
+			execErrors = append(execErrors, err)
+		}
+	})
+	if len(execErrors) > 0 {
+		return errors.Wrap(errors.Join(execErrors...), "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) CreateInscriptionTransfers(ctx context.Context, transfers []*entity.InscriptionTransfer) error {
+	params := lo.Map(transfers, func(transfer *entity.InscriptionTransfer, _ int) gen.CreateInscriptionTransfersParams {
+		return mapInscriptionTransferTypeToParams(*transfer)
+	})
+	results := r.queries.CreateInscriptionTransfers(ctx, params)
+	var execErrors []error
+	results.Exec(func(i int, err error) {
+		if err != nil {
+			execErrors = append(execErrors, err)
+		}
+	})
+	if len(execErrors) > 0 {
+		return errors.Wrap(errors.Join(execErrors...), "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) CreateEventDeploys(ctx context.Context, events []*entity.EventDeploy) error {
+	params := make([]gen.CreateEventDeploysParams, 0)
+	for _, event := range events {
+		param, err := mapEventDeployTypeToParams(*event)
+		if err != nil {
+			return errors.Wrap(err, "cannot map event deploy to create params")
+		}
+		params = append(params, param)
+	}
+	results := r.queries.CreateEventDeploys(ctx, params)
+	var execErrors []error
+	results.Exec(func(i int, err error) {
+		if err != nil {
+			execErrors = append(execErrors, err)
+		}
+	})
+	if len(execErrors) > 0 {
+		return errors.Wrap(errors.Join(execErrors...), "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) CreateEventMints(ctx context.Context, events []*entity.EventMint) error {
+	params := make([]gen.CreateEventMintsParams, 0)
+	for _, event := range events {
+		param, err := mapEventMintTypeToParams(*event)
+		if err != nil {
+			return errors.Wrap(err, "cannot map event mint to create params")
+		}
+		params = append(params, param)
+	}
+	results := r.queries.CreateEventMints(ctx, params)
+	var execErrors []error
+	results.Exec(func(i int, err error) {
+		if err != nil {
+			execErrors = append(execErrors, err)
+		}
+	})
+	if len(execErrors) > 0 {
+		return errors.Wrap(errors.Join(execErrors...), "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) CreateEventInscribeTransfers(ctx context.Context, events []*entity.EventInscribeTransfer) error {
+	params := make([]gen.CreateEventInscribeTransfersParams, 0)
+	for _, event := range events {
+		param, err := mapEventInscribeTransferTypeToParams(*event)
+		if err != nil {
+			return errors.Wrap(err, "cannot map event transfer to create params")
+		}
+		params = append(params, param)
+	}
+	results := r.queries.CreateEventInscribeTransfers(ctx, params)
+	var execErrors []error
+	results.Exec(func(i int, err error) {
+		if err != nil {
+			execErrors = append(execErrors, err)
+		}
+	})
+	if len(execErrors) > 0 {
+		return errors.Wrap(errors.Join(execErrors...), "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) CreateEventTransferTransfers(ctx context.Context, events []*entity.EventTransferTransfer) error {
+	params := make([]gen.CreateEventTransferTransfersParams, 0)
+	for _, event := range events {
+		param, err := mapEventTransferTransferTypeToParams(*event)
+		if err != nil {
+			return errors.Wrap(err, "cannot map event transfer to create params")
+		}
+		params = append(params, param)
+	}
+	results := r.queries.CreateEventTransferTransfers(ctx, params)
+	var execErrors []error
+	results.Exec(func(i int, err error) {
+		if err != nil {
+			execErrors = append(execErrors, err)
+		}
+	})
+	if len(execErrors) > 0 {
+		return errors.Wrap(errors.Join(execErrors...), "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) CreateBalances(ctx context.Context, balances []*entity.Balance) error {
+	params := lo.Map(balances, func(balance *entity.Balance, _ int) gen.CreateBalancesParams {
+		return mapBalanceTypeToParams(*balance)
+	})
+	results := r.queries.CreateBalances(ctx, params)
+	var execErrors []error
+	results.Exec(func(i int, err error) {
+		if err != nil {
+			execErrors = append(execErrors, err)
+		}
+	})
+	if len(execErrors) > 0 {
+		return errors.Wrap(errors.Join(execErrors...), "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) DeleteIndexedBlocksSinceHeight(ctx context.Context, height uint64) error {
+	if err := r.queries.DeleteIndexedBlocksSinceHeight(ctx, int32(height)); err != nil {
+		return errors.Wrap(err, "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) DeleteProcessorStatsSinceHeight(ctx context.Context, height uint64) error {
+	if err := r.queries.DeleteProcessorStatsSinceHeight(ctx, int32(height)); err != nil {
+		return errors.Wrap(err, "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) DeleteTickEntriesSinceHeight(ctx context.Context, height uint64) error {
+	if err := r.queries.DeleteTickEntriesSinceHeight(ctx, int32(height)); err != nil {
+		return errors.Wrap(err, "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) DeleteTickEntryStatesSinceHeight(ctx context.Context, height uint64) error {
+	if err := r.queries.DeleteTickEntryStatesSinceHeight(ctx, int32(height)); err != nil {
+		return errors.Wrap(err, "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) DeleteEventDeploysSinceHeight(ctx context.Context, height uint64) error {
+	if err := r.queries.DeleteEventDeploysSinceHeight(ctx, int32(height)); err != nil {
+		return errors.Wrap(err, "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) DeleteEventMintsSinceHeight(ctx context.Context, height uint64) error {
+	if err := r.queries.DeleteEventMintsSinceHeight(ctx, int32(height)); err != nil {
+		return errors.Wrap(err, "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) DeleteEventInscribeTransfersSinceHeight(ctx context.Context, height uint64) error {
+	if err := r.queries.DeleteEventInscribeTransfersSinceHeight(ctx, int32(height)); err != nil {
+		return errors.Wrap(err, "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) DeleteEventTransferTransfersSinceHeight(ctx context.Context, height uint64) error {
+	if err := r.queries.DeleteEventTransferTransfersSinceHeight(ctx, int32(height)); err != nil {
+		return errors.Wrap(err, "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) DeleteBalancesSinceHeight(ctx context.Context, height uint64) error {
+	if err := r.queries.DeleteBalancesSinceHeight(ctx, int32(height)); err != nil {
+		return errors.Wrap(err, "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) DeleteInscriptionEntriesSinceHeight(ctx context.Context, height uint64) error {
+	if err := r.queries.DeleteInscriptionEntriesSinceHeight(ctx, int32(height)); err != nil {
+		return errors.Wrap(err, "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) DeleteInscriptionEntryStatesSinceHeight(ctx context.Context, height uint64) error {
+	if err := r.queries.DeleteInscriptionEntryStatesSinceHeight(ctx, int32(height)); err != nil {
+		return errors.Wrap(err, "error during exec")
+	}
+	return nil
+}
+
+func (r *Repository) DeleteInscriptionTransfersSinceHeight(ctx context.Context, height uint64) error {
+	if err := r.queries.DeleteInscriptionTransfersSinceHeight(ctx, int32(height)); err != nil {
+		return errors.Wrap(err, "error during exec")
+	}
+	return nil
+}

modules/brc20/internal/repository/postgres/gen/batch.go

@@ -0,0 +1,696 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.26.0
+// source: batch.go
+
+package gen
+
+import (
+	"context"
+	"errors"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+var (
+	ErrBatchAlreadyClosed = errors.New("batch already closed")
+)
+
+const createBalances = `-- name: CreateBalances :batchexec
+INSERT INTO "brc20_balances" ("pkscript", "block_height", "tick", "overall_balance", "available_balance") VALUES ($1, $2, $3, $4, $5)
+`
+
+type CreateBalancesBatchResults struct {
+	br     pgx.BatchResults
+	tot    int
+	closed bool
+}
+
+type CreateBalancesParams struct {
+	Pkscript         string
+	BlockHeight      int32
+	Tick             string
+	OverallBalance   pgtype.Numeric
+	AvailableBalance pgtype.Numeric
+}
+
+func (q *Queries) CreateBalances(ctx context.Context, arg []CreateBalancesParams) *CreateBalancesBatchResults {
+	batch := &pgx.Batch{}
+	for _, a := range arg {
+		vals := []interface{}{
+			a.Pkscript,
+			a.BlockHeight,
+			a.Tick,
+			a.OverallBalance,
+			a.AvailableBalance,
+		}
+		batch.Queue(createBalances, vals...)
+	}
+	br := q.db.SendBatch(ctx, batch)
+	return &CreateBalancesBatchResults{br, len(arg), false}
+}
+
+func (b *CreateBalancesBatchResults) Exec(f func(int, error)) {
+	defer b.br.Close()
+	for t := 0; t < b.tot; t++ {
+		if b.closed {
+			if f != nil {
+				f(t, ErrBatchAlreadyClosed)
+			}
+			continue
+		}
+		_, err := b.br.Exec()
+		if f != nil {
+			f(t, err)
+		}
+	}
+}
+
+func (b *CreateBalancesBatchResults) Close() error {
+	b.closed = true
+	return b.br.Close()
+}
+
+const createEventDeploys = `-- name: CreateEventDeploys :batchexec
+INSERT INTO "brc20_event_deploys" ("id", "inscription_id", "inscription_number", "tick", "original_tick", "tx_hash", "block_height", "tx_index", "timestamp", "pkscript", "satpoint", "total_supply", "decimals", "limit_per_mint", "is_self_mint") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15)
+`
+
+type CreateEventDeploysBatchResults struct {
+	br     pgx.BatchResults
+	tot    int
+	closed bool
+}
+
+type CreateEventDeploysParams struct {
+	Id                int64
+	InscriptionID     string
+	InscriptionNumber int64
+	Tick              string
+	OriginalTick      string
+	TxHash            string
+	BlockHeight       int32
+	TxIndex           int32
+	Timestamp         pgtype.Timestamp
+	Pkscript          string
+	Satpoint          string
+	TotalSupply       pgtype.Numeric
+	Decimals          int16
+	LimitPerMint      pgtype.Numeric
+	IsSelfMint        bool
+}
+
+func (q *Queries) CreateEventDeploys(ctx context.Context, arg []CreateEventDeploysParams) *CreateEventDeploysBatchResults {
+	batch := &pgx.Batch{}
+	for _, a := range arg {
+		vals := []interface{}{
+			a.Id,
+			a.InscriptionID,
+			a.InscriptionNumber,
+			a.Tick,
+			a.OriginalTick,
+			a.TxHash,
+			a.BlockHeight,
+			a.TxIndex,
+			a.Timestamp,
+			a.Pkscript,
+			a.Satpoint,
+			a.TotalSupply,
+			a.Decimals,
+			a.LimitPerMint,
+			a.IsSelfMint,
+		}
+		batch.Queue(createEventDeploys, vals...)
+	}
+	br := q.db.SendBatch(ctx, batch)
+	return &CreateEventDeploysBatchResults{br, len(arg), false}
+}
+
+func (b *CreateEventDeploysBatchResults) Exec(f func(int, error)) {
+	defer b.br.Close()
+	for t := 0; t < b.tot; t++ {
+		if b.closed {
+			if f != nil {
+				f(t, ErrBatchAlreadyClosed)
+			}
+			continue
+		}
+		_, err := b.br.Exec()
+		if f != nil {
+			f(t, err)
+		}
+	}
+}
+
+func (b *CreateEventDeploysBatchResults) Close() error {
+	b.closed = true
+	return b.br.Close()
+}
+
+const createEventInscribeTransfers = `-- name: CreateEventInscribeTransfers :batchexec
+INSERT INTO "brc20_event_inscribe_transfers" ("id", "inscription_id", "inscription_number", "tick", "original_tick", "tx_hash", "block_height", "tx_index", "timestamp", "pkscript", "satpoint", "output_index", "sats_amount", "amount") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14)
+`
+
+type CreateEventInscribeTransfersBatchResults struct {
+	br     pgx.BatchResults
+	tot    int
+	closed bool
+}
+
+type CreateEventInscribeTransfersParams struct {
+	Id                int64
+	InscriptionID     string
+	InscriptionNumber int64
+	Tick              string
+	OriginalTick      string
+	TxHash            string
+	BlockHeight       int32
+	TxIndex           int32
+	Timestamp         pgtype.Timestamp
+	Pkscript          string
+	Satpoint          string
+	OutputIndex       int32
+	SatsAmount        int64
+	Amount            pgtype.Numeric
+}
+
+func (q *Queries) CreateEventInscribeTransfers(ctx context.Context, arg []CreateEventInscribeTransfersParams) *CreateEventInscribeTransfersBatchResults {
+	batch := &pgx.Batch{}
+	for _, a := range arg {
+		vals := []interface{}{
+			a.Id,
+			a.InscriptionID,
+			a.InscriptionNumber,
+			a.Tick,
+			a.OriginalTick,
+			a.TxHash,
+			a.BlockHeight,
+			a.TxIndex,
+			a.Timestamp,
+			a.Pkscript,
+			a.Satpoint,
+			a.OutputIndex,
+			a.SatsAmount,
+			a.Amount,
+		}
+		batch.Queue(createEventInscribeTransfers, vals...)
+	}
+	br := q.db.SendBatch(ctx, batch)
+	return &CreateEventInscribeTransfersBatchResults{br, len(arg), false}
+}
+
+func (b *CreateEventInscribeTransfersBatchResults) Exec(f func(int, error)) {
+	defer b.br.Close()
+	for t := 0; t < b.tot; t++ {
+		if b.closed {
+			if f != nil {
+				f(t, ErrBatchAlreadyClosed)
+			}
+			continue
+		}
+		_, err := b.br.Exec()
+		if f != nil {
+			f(t, err)
+		}
+	}
+}
+
+func (b *CreateEventInscribeTransfersBatchResults) Close() error {
+	b.closed = true
+	return b.br.Close()
+}
+
+const createEventMints = `-- name: CreateEventMints :batchexec
+INSERT INTO "brc20_event_mints" ("id", "inscription_id", "inscription_number", "tick", "original_tick", "tx_hash", "block_height", "tx_index", "timestamp", "pkscript", "satpoint", "amount", "parent_id") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13)
+`
+
+type CreateEventMintsBatchResults struct {
+	br     pgx.BatchResults
+	tot    int
+	closed bool
+}
+
+type CreateEventMintsParams struct {
+	Id                int64
+	InscriptionID     string
+	InscriptionNumber int64
+	Tick              string
+	OriginalTick      string
+	TxHash            string
+	BlockHeight       int32
+	TxIndex           int32
+	Timestamp         pgtype.Timestamp
+	Pkscript          string
+	Satpoint          string
+	Amount            pgtype.Numeric
+	ParentID          pgtype.Text
+}
+
+func (q *Queries) CreateEventMints(ctx context.Context, arg []CreateEventMintsParams) *CreateEventMintsBatchResults {
+	batch := &pgx.Batch{}
+	for _, a := range arg {
+		vals := []interface{}{
+			a.Id,
+			a.InscriptionID,
+			a.InscriptionNumber,
+			a.Tick,
+			a.OriginalTick,
+			a.TxHash,
+			a.BlockHeight,
+			a.TxIndex,
+			a.Timestamp,
+			a.Pkscript,
+			a.Satpoint,
+			a.Amount,
+			a.ParentID,
+		}
+		batch.Queue(createEventMints, vals...)
+	}
+	br := q.db.SendBatch(ctx, batch)
+	return &CreateEventMintsBatchResults{br, len(arg), false}
+}
+
+func (b *CreateEventMintsBatchResults) Exec(f func(int, error)) {
+	defer b.br.Close()
+	for t := 0; t < b.tot; t++ {
+		if b.closed {
+			if f != nil {
+				f(t, ErrBatchAlreadyClosed)
+			}
+			continue
+		}
+		_, err := b.br.Exec()
+		if f != nil {
+			f(t, err)
+		}
+	}
+}
+
+func (b *CreateEventMintsBatchResults) Close() error {
+	b.closed = true
+	return b.br.Close()
+}
+
+const createEventTransferTransfers = `-- name: CreateEventTransferTransfers :batchexec
+INSERT INTO "brc20_event_transfer_transfers" ("id", "inscription_id", "inscription_number", "tick", "original_tick", "tx_hash", "block_height", "tx_index", "timestamp", "from_pkscript", "from_satpoint", "from_input_index", "to_pkscript", "to_satpoint", "to_output_index", "spent_as_fee", "amount") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17)
+`
+
+type CreateEventTransferTransfersBatchResults struct {
+	br     pgx.BatchResults
+	tot    int
+	closed bool
+}
+
+type CreateEventTransferTransfersParams struct {
+	Id                int64
+	InscriptionID     string
+	InscriptionNumber int64
+	Tick              string
+	OriginalTick      string
+	TxHash            string
+	BlockHeight       int32
+	TxIndex           int32
+	Timestamp         pgtype.Timestamp
+	FromPkscript      string
+	FromSatpoint      string
+	FromInputIndex    int32
+	ToPkscript        string
+	ToSatpoint        string
+	ToOutputIndex     int32
+	SpentAsFee        bool
+	Amount            pgtype.Numeric
+}
+
+func (q *Queries) CreateEventTransferTransfers(ctx context.Context, arg []CreateEventTransferTransfersParams) *CreateEventTransferTransfersBatchResults {
+	batch := &pgx.Batch{}
+	for _, a := range arg {
+		vals := []interface{}{
+			a.Id,
+			a.InscriptionID,
+			a.InscriptionNumber,
+			a.Tick,
+			a.OriginalTick,
+			a.TxHash,
+			a.BlockHeight,
+			a.TxIndex,
+			a.Timestamp,
+			a.FromPkscript,
+			a.FromSatpoint,
+			a.FromInputIndex,
+			a.ToPkscript,
+			a.ToSatpoint,
+			a.ToOutputIndex,
+			a.SpentAsFee,
+			a.Amount,
+		}
+		batch.Queue(createEventTransferTransfers, vals...)
+	}
+	br := q.db.SendBatch(ctx, batch)
+	return &CreateEventTransferTransfersBatchResults{br, len(arg), false}
+}
+
+func (b *CreateEventTransferTransfersBatchResults) Exec(f func(int, error)) {
+	defer b.br.Close()
+	for t := 0; t < b.tot; t++ {
+		if b.closed {
+			if f != nil {
+				f(t, ErrBatchAlreadyClosed)
+			}
+			continue
+		}
+		_, err := b.br.Exec()
+		if f != nil {
+			f(t, err)
+		}
+	}
+}
+
+func (b *CreateEventTransferTransfersBatchResults) Close() error {
+	b.closed = true
+	return b.br.Close()
+}
+
+const createInscriptionEntries = `-- name: CreateInscriptionEntries :batchexec
+INSERT INTO "brc20_inscription_entries" ("id", "number", "sequence_number", "delegate", "metadata", "metaprotocol", "parents", "pointer", "content", "content_encoding", "content_type", "cursed", "cursed_for_brc20", "created_at", "created_at_height") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15)
+`
+
+type CreateInscriptionEntriesBatchResults struct {
+	br     pgx.BatchResults
+	tot    int
+	closed bool
+}
+
+type CreateInscriptionEntriesParams struct {
+	Id              string
+	Number          int64
+	SequenceNumber  int64
+	Delegate        pgtype.Text
+	Metadata        []byte
+	Metaprotocol    pgtype.Text
+	Parents         []string
+	Pointer         pgtype.Int8
+	Content         []byte
+	ContentEncoding pgtype.Text
+	ContentType     pgtype.Text
+	Cursed          bool
+	CursedForBrc20  bool
+	CreatedAt       pgtype.Timestamp
+	CreatedAtHeight int32
+}
+
+func (q *Queries) CreateInscriptionEntries(ctx context.Context, arg []CreateInscriptionEntriesParams) *CreateInscriptionEntriesBatchResults {
+	batch := &pgx.Batch{}
+	for _, a := range arg {
+		vals := []interface{}{
+			a.Id,
+			a.Number,
+			a.SequenceNumber,
+			a.Delegate,
+			a.Metadata,
+			a.Metaprotocol,
+			a.Parents,
+			a.Pointer,
+			a.Content,
+			a.ContentEncoding,
+			a.ContentType,
+			a.Cursed,
+			a.CursedForBrc20,
+			a.CreatedAt,
+			a.CreatedAtHeight,
+		}
+		batch.Queue(createInscriptionEntries, vals...)
+	}
+	br := q.db.SendBatch(ctx, batch)
+	return &CreateInscriptionEntriesBatchResults{br, len(arg), false}
+}
+
+func (b *CreateInscriptionEntriesBatchResults) Exec(f func(int, error)) {
+	defer b.br.Close()
+	for t := 0; t < b.tot; t++ {
+		if b.closed {
+			if f != nil {
+				f(t, ErrBatchAlreadyClosed)
+			}
+			continue
+		}
+		_, err := b.br.Exec()
+		if f != nil {
+			f(t, err)
+		}
+	}
+}
+
+func (b *CreateInscriptionEntriesBatchResults) Close() error {
+	b.closed = true
+	return b.br.Close()
+}
+
+const createInscriptionEntryStates = `-- name: CreateInscriptionEntryStates :batchexec
+INSERT INTO "brc20_inscription_entry_states" ("id", "block_height", "transfer_count") VALUES ($1, $2, $3)
+`
+
+type CreateInscriptionEntryStatesBatchResults struct {
+	br     pgx.BatchResults
+	tot    int
+	closed bool
+}
+
+type CreateInscriptionEntryStatesParams struct {
+	Id            string
+	BlockHeight   int32
+	TransferCount int32
+}
+
+func (q *Queries) CreateInscriptionEntryStates(ctx context.Context, arg []CreateInscriptionEntryStatesParams) *CreateInscriptionEntryStatesBatchResults {
+	batch := &pgx.Batch{}
+	for _, a := range arg {
+		vals := []interface{}{
+			a.Id,
+			a.BlockHeight,
+			a.TransferCount,
+		}
+		batch.Queue(createInscriptionEntryStates, vals...)
+	}
+	br := q.db.SendBatch(ctx, batch)
+	return &CreateInscriptionEntryStatesBatchResults{br, len(arg), false}
+}
+
+func (b *CreateInscriptionEntryStatesBatchResults) Exec(f func(int, error)) {
+	defer b.br.Close()
+	for t := 0; t < b.tot; t++ {
+		if b.closed {
+			if f != nil {
+				f(t, ErrBatchAlreadyClosed)
+			}
+			continue
+		}
+		_, err := b.br.Exec()
+		if f != nil {
+			f(t, err)
+		}
+	}
+}
+
+func (b *CreateInscriptionEntryStatesBatchResults) Close() error {
+	b.closed = true
+	return b.br.Close()
+}
+
+const createInscriptionTransfers = `-- name: CreateInscriptionTransfers :batchexec
+INSERT INTO "brc20_inscription_transfers" ("inscription_id", "inscription_number", "inscription_sequence_number", "block_height", "tx_index", "tx_hash", "from_input_index", "old_satpoint_tx_hash", "old_satpoint_out_idx", "old_satpoint_offset", "new_satpoint_tx_hash", "new_satpoint_out_idx", "new_satpoint_offset", "new_pkscript", "new_output_value", "sent_as_fee", "transfer_count") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17)
+`
+
+type CreateInscriptionTransfersBatchResults struct {
+	br     pgx.BatchResults
+	tot    int
+	closed bool
+}
+
+type CreateInscriptionTransfersParams struct {
+	InscriptionID             string
+	InscriptionNumber         int64
+	InscriptionSequenceNumber int64
+	BlockHeight               int32
+	TxIndex                   int32
+	TxHash                    string
+	FromInputIndex            int32
+	OldSatpointTxHash         pgtype.Text
+	OldSatpointOutIdx         pgtype.Int4
+	OldSatpointOffset         pgtype.Int8
+	NewSatpointTxHash         pgtype.Text
+	NewSatpointOutIdx         pgtype.Int4
+	NewSatpointOffset         pgtype.Int8
+	NewPkscript               string
+	NewOutputValue            int64
+	SentAsFee                 bool
+	TransferCount             int32
+}
+
+func (q *Queries) CreateInscriptionTransfers(ctx context.Context, arg []CreateInscriptionTransfersParams) *CreateInscriptionTransfersBatchResults {
+	batch := &pgx.Batch{}
+	for _, a := range arg {
+		vals := []interface{}{
+			a.InscriptionID,
+			a.InscriptionNumber,
+			a.InscriptionSequenceNumber,
+			a.BlockHeight,
+			a.TxIndex,
+			a.TxHash,
+			a.FromInputIndex,
+			a.OldSatpointTxHash,
+			a.OldSatpointOutIdx,
+			a.OldSatpointOffset,
+			a.NewSatpointTxHash,
+			a.NewSatpointOutIdx,
+			a.NewSatpointOffset,
+			a.NewPkscript,
+			a.NewOutputValue,
+			a.SentAsFee,
+			a.TransferCount,
+		}
+		batch.Queue(createInscriptionTransfers, vals...)
+	}
+	br := q.db.SendBatch(ctx, batch)
+	return &CreateInscriptionTransfersBatchResults{br, len(arg), false}
+}
+
+func (b *CreateInscriptionTransfersBatchResults) Exec(f func(int, error)) {
+	defer b.br.Close()
+	for t := 0; t < b.tot; t++ {
+		if b.closed {
+			if f != nil {
+				f(t, ErrBatchAlreadyClosed)
+			}
+			continue
+		}
+		_, err := b.br.Exec()
+		if f != nil {
+			f(t, err)
+		}
+	}
+}
+
+func (b *CreateInscriptionTransfersBatchResults) Close() error {
+	b.closed = true
+	return b.br.Close()
+}
+
+const createTickEntries = `-- name: CreateTickEntries :batchexec
+INSERT INTO "brc20_tick_entries" ("tick", "original_tick", "total_supply", "decimals", "limit_per_mint", "is_self_mint", "deploy_inscription_id", "deployed_at", "deployed_at_height") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)
+`
+
+type CreateTickEntriesBatchResults struct {
+	br     pgx.BatchResults
+	tot    int
+	closed bool
+}
+
+type CreateTickEntriesParams struct {
+	Tick                string
+	OriginalTick        string
+	TotalSupply         pgtype.Numeric
+	Decimals            int16
+	LimitPerMint        pgtype.Numeric
+	IsSelfMint          bool
+	DeployInscriptionID string
+	DeployedAt          pgtype.Timestamp
+	DeployedAtHeight    int32
+}
+
+func (q *Queries) CreateTickEntries(ctx context.Context, arg []CreateTickEntriesParams) *CreateTickEntriesBatchResults {
+	batch := &pgx.Batch{}
+	for _, a := range arg {
+		vals := []interface{}{
+			a.Tick,
+			a.OriginalTick,
+			a.TotalSupply,
+			a.Decimals,
+			a.LimitPerMint,
+			a.IsSelfMint,
+			a.DeployInscriptionID,
+			a.DeployedAt,
+			a.DeployedAtHeight,
+		}
+		batch.Queue(createTickEntries, vals...)
+	}
+	br := q.db.SendBatch(ctx, batch)
+	return &CreateTickEntriesBatchResults{br, len(arg), false}
+}
+
+func (b *CreateTickEntriesBatchResults) Exec(f func(int, error)) {
+	defer b.br.Close()
+	for t := 0; t < b.tot; t++ {
+		if b.closed {
+			if f != nil {
+				f(t, ErrBatchAlreadyClosed)
+			}
+			continue
+		}
+		_, err := b.br.Exec()
+		if f != nil {
+			f(t, err)
+		}
+	}
+}
+
+func (b *CreateTickEntriesBatchResults) Close() error {
+	b.closed = true
+	return b.br.Close()
+}
+
+const createTickEntryStates = `-- name: CreateTickEntryStates :batchexec
+INSERT INTO "brc20_tick_entry_states" ("tick", "block_height", "minted_amount", "burned_amount", "completed_at", "completed_at_height") VALUES ($1, $2, $3, $4, $5, $6)
+`
+
+type CreateTickEntryStatesBatchResults struct {
+	br     pgx.BatchResults
+	tot    int
+	closed bool
+}
+
+type CreateTickEntryStatesParams struct {
+	Tick              string
+	BlockHeight       int32
+	MintedAmount      pgtype.Numeric
+	BurnedAmount      pgtype.Numeric
+	CompletedAt       pgtype.Timestamp
+	CompletedAtHeight pgtype.Int4
+}
+
+func (q *Queries) CreateTickEntryStates(ctx context.Context, arg []CreateTickEntryStatesParams) *CreateTickEntryStatesBatchResults {
+	batch := &pgx.Batch{}
+	for _, a := range arg {
+		vals := []interface{}{
+			a.Tick,
+			a.BlockHeight,
+			a.MintedAmount,
+			a.BurnedAmount,
+			a.CompletedAt,
+			a.CompletedAtHeight,
+		}
+		batch.Queue(createTickEntryStates, vals...)
+	}
+	br := q.db.SendBatch(ctx, batch)
+	return &CreateTickEntryStatesBatchResults{br, len(arg), false}
+}
+
+func (b *CreateTickEntryStatesBatchResults) Exec(f func(int, error)) {
+	defer b.br.Close()
+	for t := 0; t < b.tot; t++ {
+		if b.closed {
+			if f != nil {
+				f(t, ErrBatchAlreadyClosed)
+			}
+			continue
+		}
+		_, err := b.br.Exec()
+		if f != nil {
+			f(t, err)
+		}
+	}
+}
+
+func (b *CreateTickEntryStatesBatchResults) Close() error {
+	b.closed = true
+	return b.br.Close()
+}