Merge pull request #4209 from BitGo/rbf-test

feat: add an example to test bitcoin replace by fee feature

examples/ts/btc/rbf/config.ts

@@ -0,0 +1,7 @@
+export const rbfConfig = {
+  accessToken: '',
+  walletId: '',
+  walletPassphrase: '',
+  env: 'test',
+  coin: 'tbtc',
+};

examples/ts/btc/rbf/index.ts

@@ -0,0 +1,57 @@
+/**
+ * Send a transaction to be replaced from a multi-sig wallet at BitGo.
+ * Then quickly send a replacement transaction with a higher fee.
+ *
+ * Copyright 2024, BitGo, Inc.  All Rights Reserved.
+ */
+import { BitGo, EnvironmentName } from '../../../../modules/bitgo';
+import { rbfConfig } from './config';
+
+const bitgo = new BitGo({ env: rbfConfig.env as EnvironmentName });
+bitgo.authenticateWithAccessToken({ accessToken: rbfConfig.accessToken });
+
+const RECEIVE_ADDRESS = '';
+
+async function getWallet() {
+  return await bitgo.coin(rbfConfig.coin).wallets().get({ id: rbfConfig.walletId });
+}
+
+function delay(ms: number) {
+  console.log('Start delay for ', ms / 1000, 'secs');
+  return new Promise((resolve) => setTimeout(resolve, ms));
+}
+
+async function main() {
+  console.log('Starting...');
+
+  const wallet = await getWallet();
+  const txToBeReplaced = await wallet.sendMany({
+    recipients: [
+      {
+        amount: '50000',
+        address: RECEIVE_ADDRESS,
+      },
+    ],
+    isReplaceableByFee: true,
+    feeRate: 1000, // 1 sat/vbyte
+    walletPassphrase: rbfConfig.walletPassphrase,
+  });
+  console.log('Transaction to be replaced: ', txToBeReplaced);
+
+  await delay(45_000); // Delay for 45secs so that the original tx gets propagated to the network
+  console.log('End delay');
+
+  const idOfTxToBeReplaced = txToBeReplaced.txid;
+  const replacementTx = await wallet.sendMany({
+    recipients: [],
+    rbfTxIds: [idOfTxToBeReplaced],
+    feeMultiplier: 3.5,
+    walletPassphrase: rbfConfig.walletPassphrase,
+  });
+  console.log('Replacement Transaction: ', replacementTx);
+}
+
+main().catch((e) => {
+  console.error(e);
+  process.exit(1);
+});