added support for type-2 tx signing

CHANGELOG.md

@@ -46,4 +46,5 @@
 
 ### 1.0.9 (2023-12-12)
 
-- Added gas estimation for EIP-1559 transaction on arbitrum.
+- Added gas estimation for EIP-1559 transaction on arbitrum.
+- Added support for Type-2 transactions signing.

package.json

@@ -45,14 +45,15 @@
     "nyc": "^15.0.0"
   },
   "dependencies": {
+    "@ethereumjs/common": "^4.1.0",
+    "@ethereumjs/tx": "^5.1.0",
     "axios": "^1.6.2",
     "bip39": "^3.0.4",
     "browser-passworder": "^2.0.3",
     "crypto-js": "^4.1.1",
     "eth-hd-keyring": "^3.6.0",
     "eth-sig-util": "^3.0.1",
     "eth-simple-keyring": "^4.2.0",
-    "ethereumjs-tx": "^1.3.7",
     "ethereumjs-util": "^7.1.0",
     "hdkey": "^2.0.1",
     "loglevel": "^1.7.1",

src/index.js

@@ -2,13 +2,16 @@
 const { EventEmitter } = require('events')
 const log = require('loglevel')
 const ethUtil = require('ethereumjs-util')
-const Tx = require('ethereumjs-tx');
 
 const bip39 = require('bip39')
 const ObservableStore = require('obs-store')
 const encryptor = require('browser-passworder')
 const { normalize: normalizeAddress } = require('eth-sig-util')
 
+const { Common, Hardfork } =require('@ethereumjs/common')
+const { FeeMarketEIP1559Transaction } = require('@ethereumjs/tx');
+const { bufferToHex } = require('ethereumjs-util')
+
 const SimpleKeyring = require('eth-simple-keyring')
 const HdKeyring = require('eth-hd-keyring')
 
@@ -254,27 +257,29 @@ class KeyringController extends EventEmitter {
     // SIGNING METHODS
     //
 
-    /**
-     * Sign Arbitrum Transaction
-     *
-     * Signs an Arbitrum transaction object.
-     *
-     * @param {Object} arbitrumTx - The transaction to sign.
-     * @param {Object} web3 - web3 object.
-     * @returns {string} The signed transaction raw string.
-     */
+   /**
+    * Sign arbitrum Transaction 
+    *
+    * Signs an arbitrum transaction object.
+    *
+    * @param {Object} rawTx - The transaction to sign.
+    * @returns {string} The signed transaction raw string.
+    */
 
-    async signTransaction(arbitrumTx, privateKey) {
-        const tx = new Tx(arbitrumTx);
+   async signTransaction(rawTx, privateKey) {
 
-        const pkey = Buffer.from(privateKey, 'hex');
+    const pkey = Buffer.from(privateKey, 'hex');
 
-        tx.sign(pkey);
+    const common = Common.custom({ chainId: chainId }, { hardfork: Hardfork.London })
 
-        const signedTx = `0x${tx.serialize().toString('hex')}`;
+    const tx = FeeMarketEIP1559Transaction.fromTxData(rawTx, { common });
 
-        return signedTx;
-    }
+    const signedTransaction = tx.sign(pkey);
+
+    const signedTx = bufferToHex(signedTransaction.serialize());
+
+    return signedTx
+}
 
     /**
      * Sign Transaction or Message to get v,r,s