Write Contract

import Align from "@tolbel/align";

const align = new Align({
  apiKey: process.env.ALIGN_API_KEY!,
  environment: "sandbox",
});

const wallet = await align.blockchain.wallets.createFromPrivateKey(
  process.env.PRIVATE_KEY!
);

// Approve USDC spending
const ERC20_ABI = [
  "function approve(address spender, uint256 amount) returns (bool)",
];

const tx = await align.blockchain.contracts.write({
  contractAddress: "0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174",
  abi: ERC20_ABI,
  method: "approve",
  args: ["0xSpenderAddress...", "1000000000"], // 1000 USDC
  wallet,
  network: "polygon",
});

console.log(`TX Hash: ${tx.hash}`);

// Wait for confirmation
const receipt = await tx.wait();
console.log(`Confirmed in block ${receipt?.blockNumber}`);