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stacks-puppet-node/docs/rpc-endpoints.md
Pavitthra Pandurangan ea6e0c632f responded to comments
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# RPC Endpoints
### POST /v2/transactions
This endpoint is for posting _raw_ transaction data to the node's mempool.
Rejections result in a 400 error, with JSON data in the form:
```
{
"error": "transaction rejected",
"reason": "BadNonce",
"reason_data": {
"actual": 3,
"expected": 0,
"is_origin": true,
"principal": "ST2MVNFYF6H9DCMAV3HVNHTJVVE3CFWT1JYMH1EZB"
},
"txid": "0x4068179cb9169b969c80518d83890f8b808a70ab998dd227149221be9480a616"
}
```
Possible values for the "reason" field and "reason_data" field are:
* `Serialization`
* The `reason_data` field will be an object containing a `message`
string detailing the serialization error
* `Deserialization`
* The `reason_data` field will be an object containing a `message`
string detailing the deserialization error
* `SignatureValidation`
* The `reason_data` field will be an object containing a `message`
string detailing the signature validation error
* `BadNonce`
* The `reason_data` field will be an object containing:
* `expected` - a number representing the expected nonce,
* `actual` - a number representing the actual nonce,
* `is_origin` - a boolean representing whether the nonce error
occurred on the 'origin' or 'sponsor' of the transaction,
* `principal` - a string representing the principal address
that had the bad nonce
* `FeeTooLow`
* The `reason_data` field will be an object containing:
* `expected` - a number representing the minimum expected fee,
* `actual` - a number representing the supplied fee
* `NotEnoughFunds`
* The `reason_data` field will be an object containing:
* `expected` - a hex string representing the expected
number of microstacks
* `actual` - a hex string representing the actual
number of microstacks the account possesses
* `NoSuchContract`
* `NoSuchPublicFunction`
* `BadFunctionArgument`
* The `reason_data` field will be an object containing a `message`
string detailing why the supplied argument was bad.
* `ContractAlreadyExists`
* The `reason_data` field will be an object containing a `contract_identifier`
string representing the contract identifier that would be duplicated.
* `PoisonMicroblocksDoNotConflict`
* `PoisonMicroblockHasUnknownPubKeyHash`
* `PoisonMicroblockIsInvalid`
* `BadAddressVersionByte`
* `NoCoinbaseViaMempool`
* `ServerFailureNoSuchChainTip`
* `ServerFailureDatabase`
* The `reason_data` field will be an object containing a `message`
string detailing why the server had a database error
* `ServerFailureOther`
* The `reason_data` field will be an object containing a `message`
string providing more detail on the server failure
Reason types without additional information will not have a
`reason_data` field.
### GET /v2/pox
Get current PoX-relevant information. See OpenAPI [spec](./rpc/openapi.yaml) for details.
### GET /v2/accounts/[Principal]
Get the account data for the provided principal.
The principal string is either a Stacks address or a Contract identifier (e.g.,
`SP31DA6FTSJX2WGTZ69SFY11BH51NZMB0ZW97B5P0.get-info`
Returns JSON data in the form:
```
{
"balance": "0x100..",
"nonce": 1,
"balance_proof": "0x01fa...",
"nonce_proof": "0x01ab...",
}
```
Where balance is the hex encoding of a unsigned 128-bit integer
(big-endian), nonce is a unsigned 64-bit integer, and the proofs are
provided as hex strings.
For non-existent accounts, this _does not_ 404, rather it returns an
object with balance and nonce of 0.
This endpoint also accepts a querystring parameter `?proof=` which when supplied `0`, will return the
JSON object _without_ the `balance_proof` or `nonce_proof` fields.
### POST /v2/map_entry/[Stacks Address]/[Contract Name]/[Map Name]
Attempt to fetch data from a contract data map. The contract is identified with [Stacks Address] and
[Contract Name] in the URL path. The map is identified with [Map Name].
The _key_ to lookup in the map is supplied via the POST body. This should be supplied as the hex string
serialization of the key (which should be a Clarity value). Note, this is a _JSON_ string atom.
Returns JSON data in the form:
```
{
"data": "0x01ce...",
"proof": "0x01ab...",
}
```
Where data is the hex serialization of the map response. Note that map responses are Clarity _option_ types,
for non-existent values, this is a serialized `none`, and for all other responses, it is a serialized `(some ...)`
object.
This endpoint also accepts a querystring parameter `?proof=` which when supplied `0`, will return the
JSON object _without_ the `proof` field.
### GET /v2/fees/transfer
Get an estimated fee rate for STX transfer transactions. This a a fee rate / byte, and is returned as a JSON integer.
### GET /v2/contracts/interface/[Stacks Address]/[Contract Name]
Fetch the contract interface for a given contract, identified by [Stacks Address] and [Contract Name].
This returns a JSON object of the form:
```
{
"functions": [
{
"name": "exotic-block-height",
"access": "private",
"args": [
{
"name": "height",
"type": "uint128"
}
],
"outputs": {
"type": "bool"
}
},
{
"name": "update-info",
"access": "public",
"args": [],
"outputs": {
"type": {
"response": {
"ok": "bool",
"error": "none"
}
}
}
},
{
"name": "get-exotic-data-info",
"access": "read_only",
"args": [
{
"name": "height",
"type": "uint128"
}
],
"outputs": {
"type": {
"tuple": [
{
"name": "btc-hash",
"type": {
"buffer": {
"length": 32
}
}
},
{
"name": "burn-block-time",
"type": "uint128"
},
{
"name": "id-hash",
"type": {
"buffer": {
"length": 32
}
}
},
{
"name": "stacks-hash",
"type": {
"buffer": {
"length": 32
}
}
},
{
"name": "stacks-miner",
"type": "principal"
},
{
"name": "vrf-seed",
"type": {
"buffer": {
"length": 32
}
}
}
]
}
}
}
],
"variables": [],
"maps": [
{
"name": "block-data",
"key": [
{
"name": "height",
"type": "uint128"
}
],
"value": [
{
"name": "btc-hash",
"type": {
"buffer": {
"length": 32
}
}
},
{
"name": "burn-block-time",
"type": "uint128"
},
{
"name": "id-hash",
"type": {
"buffer": {
"length": 32
}
}
},
{
"name": "stacks-hash",
"type": {
"buffer": {
"length": 32
}
}
},
{
"name": "stacks-miner",
"type": "principal"
},
{
"name": "vrf-seed",
"type": {
"buffer": {
"length": 32
}
}
}
]
}
],
"fungible_tokens": [],
"non_fungible_tokens": []
}
```
### GET /v2/contracts/source/[Stacks Address]/[Contract Name]
Fetch the source for a smart contract, along with the block height it was
published in, and the MARF proof for the data.
```
{
"source": "(define-private ...",
"publish_height": 1,
"proof": "0x00213..."
}
```
This endpoint also accepts a querystring parameter `?proof=` which
when supplied `0`, will return the JSON object _without_ the `proof`
field.
### POST /v2/contracts/call-read/[Stacks Address]/[Contract Name]/[Function Name]
Call a read-only public function on a given smart contract.
The smart contract and function are specified using the URL path. The arguments and
the simulated `tx-sender` are supplied via the POST body in the following JSON format:
```
{
"sender": "SP31DA6FTSJX2WGTZ69SFY11BH51NZMB0ZW97B5P0.get-info",
"arguments": [ "0x0011...", "0x00231..." ]
}
```
Where sender is either a Contract identifier or a normal Stacks address, and arguments
is an array of hex serialized Clarity values.
This endpoint returns a JSON object of the following form:
```
{
"okay": true,
"result": "0x0011..."
}
```
Where `"okay"` is `true` if the function executed successfully, and result contains the
hex serialization of the Clarity return value.
If an error occurs in processing the function call, this endpoint returns a 200 response with a JSON
object of the following form:
```
{
"okay": false,
"cause": "Unchecked(PublicFunctionNotReadOnly(..."
}
```
### GET /v2/traits/[Stacks Address]/[Contract Name]/[Trait Stacks Address]/[Trait Contract Name]/[Trait Name]
Determine whether a given trait is implemented within the specified contract (either explicitly or implicitly).
See OpenAPI [spec](./rpc/openapi.yaml) for details.