chore(root): add script for matic to pol migration

COIN-1651
TICKET: COIN-1651

examples/ts/eth/getContractDataForPolMigration.ts

@@ -0,0 +1,24 @@
+/**
+ * Get contract data required for Matic to Pol migration
+ *
+ * Copyright 2024, BitGo, Inc.  All Rights Reserved.
+ */
+import * as ethAbi from 'ethereumjs-abi';
+
+// Get data for calling approve method in MaticToken contract
+function getApproveCallData() {
+    // Amount here needs to be replaced with the amount of tokens to be migrated
+    const data = ethAbi.methodID('approve', [ 'address', 'uint256' ]).toString('hex') + ethAbi.rawEncode([ 'address', 'uint256' ], [ '0x29e7DF7b6A1B2b07b731457f499E1696c60E2C4e', '1000000000000000000' ]).toString('hex')
+    console.log('Data for calling approve method in MaticToken contract', `0x${data}`);
+}
+
+getApproveCallData();
+
+// Get data for calling migrate method in PolygonMigration contract
+function getMigrateCallData() {
+    // Amount here needs to be replaced with the amount of tokens to be migrated
+    const data = ethAbi.methodID('migrate', [ 'uint256' ]).toString('hex') + ethAbi.rawEncode([ 'uint256' ], [ '1000000000000000000' ]).toString('hex')
+    console.log('Data for calling migrate method in PolygonMigration contract', `0x${data}`);
+}
+
+getMigrateCallData();