From 59fb1a99dc3c6e831f8f08e6c84e1a4d43106852 Mon Sep 17 00:00:00 2001
From: Kyle Fang <zhigang1992@gmail.com>
Date: Wed, 23 Aug 2023 16:55:47 +0800
Subject: [PATCH] feat: add ability to fetch token list

---
 src/alexSDK.ts         |  5 +++++
 src/utils/tokenlist.ts | 17 +++++++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 src/utils/tokenlist.ts

diff --git a/src/alexSDK.ts b/src/alexSDK.ts
index 40a4ee8..ca22bfc 100644
--- a/src/alexSDK.ts
+++ b/src/alexSDK.ts
@@ -16,6 +16,7 @@ import {
   broadcastSponsoredTx,
   isSponsoredSwapEnabled,
 } from './utils/sponsoredTx';
+import { fetchTokenList, TokenInfo } from './utils/tokenlist';
 export { SponsoredTxError, SponsoredTxErrorCode } from './utils/sponsoredTx';
 
 export class AlexSDK {
@@ -109,4 +110,8 @@ export class AlexSDK {
   isSponsoredSwapEnabled(): Promise<boolean> {
     return isSponsoredSwapEnabled().catch(() => false);
   }
+
+  fetchTokenList(): Promise<TokenInfo[]> {
+    return fetchTokenList()
+  }
 }
diff --git a/src/utils/tokenlist.ts b/src/utils/tokenlist.ts
new file mode 100644
index 0000000..dd5f729
--- /dev/null
+++ b/src/utils/tokenlist.ts
@@ -0,0 +1,17 @@
+export type TokenInfo = {
+  type: 'fungibleToken',
+  id: string,
+  displayPrecision: number,
+  icon: string,
+  availableInSwap: boolean,
+  contractAddress: string,
+  decimals: number
+}
+
+export function fetchTokenList(): Promise<TokenInfo[]> {
+  return fetch('https://token-list.alexlab.co', {
+    mode: 'cors'
+  })
+    .then(res => res.json())
+    .then(data => data.tokens)
+}