Merge pull request #6826 from BitGo/feat/COIN-4135-allow-token-approval-for-bsc

feat: allow bsc to enable token for send many

Author: hafeezshaik933

examples/ts/enable-token-send-many.ts

@@ -0,0 +1,51 @@
+/**
+ * Approve an ERC20 token for use with a batcher contract at BitGo.
+ *
+ * Copyright 2023, BitGo, Inc.  All Rights Reserved.
+ */
+import { BitGoAPI } from '@bitgo/sdk-api';
+import { Tbsc } from '@bitgo/sdk-coin-bsc';
+require('dotenv').config({ path: '../../.env' });
+
+const bitgo = new BitGoAPI({
+  accessToken: process.env.TESTNET_ACCESS_TOKEN,
+  env: 'staging',
+});
+
+const coin = 'tbsc';
+bitgo.register(coin, Tbsc.createInstance);
+
+const walletId = process.env.TESTNET_BSC_WALLET_ID;
+const walletPassphrase = process.env.TESTNET_BSC_WALLET_PASSPHRASE;
+const tokenName = 'tbsc:busd'; // Replace with the token you want to approve
+
+async function main() {
+  if (!walletId) {
+    throw new Error('Please set TESTNET_BSC_WALLET_ID environment variable');
+  }
+  if (!walletPassphrase) {
+    throw new Error('Please set TESTNET_BSC_WALLET_PASSPHRASE environment variable');
+  }
+
+  const walletInstance = await bitgo.coin(coin).wallets().get({ id: walletId });
+
+  console.log('Wallet ID:', walletInstance.id());
+  console.log('Current Receive Address:', walletInstance.receiveAddress());
+
+  console.log(`Approving token ${tokenName} for use with batcher contract...`);
+
+  try {
+    const approvalTransaction = await walletInstance.sendMany({ type: 'tokenApproval', walletPassphrase, tokenName });
+
+    console.log('Token Approval Transaction:', JSON.stringify(approvalTransaction, null, 4));
+    console.log('Transaction ID:', approvalTransaction.txid);
+    console.log('Status:', approvalTransaction.status);
+  } catch (e) {
+    console.error('Error approving token:', e.message);
+    if (e.stack) {
+      console.error(e.stack);
+    }
+  }
+}
+
+main().catch((e) => console.error(e));

modules/sdk-coin-bsc/src/bsc.ts

@@ -75,7 +75,7 @@ export class Bsc extends AbstractEthLikeNewCoins {
       !txParams?.recipients &&
       !(
         txParams.prebuildTx?.consolidateId ||
-        (txParams.type && ['acceleration', 'fillNonce', 'transferToken'].includes(txParams.type))
+        (txParams.type && ['acceleration', 'fillNonce', 'transferToken', 'tokenApproval'].includes(txParams.type))
       )
     ) {
       throw new Error(`missing txParams`);