From daf42cb84808382bb49ff52428d4966541d0554e Mon Sep 17 00:00:00 2001
From: Evan Zheng <evanzheng@bitgo.com>
Date: Wed, 19 Jul 2023 11:54:20 -0700
Subject: [PATCH] feat(bitgo): add example to sanitize unwitnessed txn from
 cardano cli EA-658

---
 .../js/ada/sanitize-unwitnessed-pledge-txn.js | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 examples/js/ada/sanitize-unwitnessed-pledge-txn.js

diff --git a/examples/js/ada/sanitize-unwitnessed-pledge-txn.js b/examples/js/ada/sanitize-unwitnessed-pledge-txn.js
new file mode 100644
index 0000000000..ced2aafb5e
--- /dev/null
+++ b/examples/js/ada/sanitize-unwitnessed-pledge-txn.js
@@ -0,0 +1,33 @@
+// There are known serialization inconsistencies between the cardano-cli and nodejs libraries. As a workaround, ADA pledge txn
+// needs to be re-serialized using the nodejs library before witnessed by node key and then submitted to BitGo pledge endpoint.
+// This script helps to re-serialize the pledge txn using the nodejs library.
+const fs = require('fs');
+const BitGoJS = require('bitgo');
+const { Transaction } = require('@bitgo/sdk-coin-ada');
+const bitgo = new BitGoJS.BitGo({ env: 'test' });
+const coin = 'tada';
+const basecoin = bitgo.coin(coin);
+
+const unwitnessedTxCborHex = 'replaced by CBOR hex of unwitnessed tx from cardano-cli';
+
+const tx = new Transaction(basecoin);
+tx.fromRawTransaction(unwitnessedTxCborHex);
+const sanitizedUnwitnessedTxn = tx.toBroadcastFormat();
+
+const unwitnessedTxn = JSON.stringify(
+  {
+    type: 'Unwitnessed Tx BabbageEra',
+    description: 'Ledger Cddl Format',
+    cborHex: sanitizedUnwitnessedTxn,
+  },
+  null,
+  4
+);
+
+fs.writeFile('sanitized_unwitnessed_pledge_txn.tx', unwitnessedTxn, (err) => {
+  if (err) {
+    console.error('Error writing to sanitized txn.', err);
+  } else {
+    console.log('Successfully saved to sanitized txn.');
+  }
+});