Smart Wallets: Programmable Token Custody on Strails

const { ethers } = require("ethers");

// Connect your owner EOA
const provider = new ethers.JsonRpcProvider("https://mainnet.base.org");
const signer = new ethers.Wallet("YOUR_PRIVATE_KEY", provider);

// Attach to your Smart Wallet contract
const walletAddress = "0xYourSmartWalletAddress";
const walletABI = [
  "function execute(address to, uint256 value, bytes data) returns (bytes)"
];
const smartWallet = new ethers.Contract(walletAddress, walletABI, signer);

// Token details
const tokenAddress = "0xTokenContractAddress"; // e.g. cNGN contract
const recipient    = "0xRecipientAddress";
const amount       = ethers.parseUnits("1000", 6); // 1 000 cNGN - 6 decimals

// Encode the ERC-20 transfer call
const transferData = new ethers.Interface([
  "function transfer(address to, uint256 amount)"
]).encodeFunctionData("transfer", [recipient, amount]);

// Send the withdrawal transaction
const tx = await smartWallet.execute(tokenAddress, 0, transferData);
await tx.wait();

console.log("Withdrawal successful:", tx.hash);

import {
  createWalletClient,
  http,
  encodeFunctionData,
  parseUnits,
} from "viem";
import { base } from "viem/chains";
import { privateKeyToAccount } from "viem/accounts";

// Connect your owner EOA
const account = privateKeyToAccount("0xYOUR_PRIVATE_KEY");

const client = createWalletClient({
  account,
  chain: base,
  transport: http(),
});

// Encode the ERC-20 transfer call
const transferData = encodeFunctionData({
  abi: [
    {
      name: "transfer",
      type: "function",
      inputs: [
        { name: "to",     type: "address" },
        { name: "amount", type: "uint256" },
      ],
      outputs: [{ type: "bool" }],
    },
  ],
  functionName: "transfer",
  args: ["0xRecipientAddress", parseUnits("1000", 6)],
});

// Call execute on your Smart Wallet
const hash = await client.writeContract({
  address: "0xYourSmartWalletAddress",
  abi: [
    {
      name: "execute",
      type: "function",
      inputs: [
        { name: "to",    type: "address" },
        { name: "value", type: "uint256" },
        { name: "data",  type: "bytes"   },
      ],
      outputs: [{ type: "bytes" }],
    },
  ],
  functionName: "execute",
  args: ["0xTokenContractAddress", 0n, transferData],
});

console.log("Transaction hash:", hash);