opbnb testnet withdraw poc with viem

withdraw_poc.ts

// doc reference: https://viem.sh/op-stack/guides/withdrawals
import {
  createPublicClient,
  createWalletClient,
  defineChain,
  http,
  parseAbi,
  parseEther,
} from "viem";
import { privateKeyToAccount } from "viem/accounts";
import { base, bsc, bscTestnet } from "viem/chains";
import {
  chainConfig,
  getWithdrawals,
  publicActionsL1,
  publicActionsL2,
  walletActionsL1,
  walletActionsL2,
} from "viem/op-stack";

const sourceId = 97;

const opbnbTestnet = defineChain({
  id: 5611,
  name: "opBNB Testnet",
  nativeCurrency: { name: "tBNB", symbol: "tBNB", decimals: 18 },
  rpcUrls: {
    default: {
      http: ["https://opbnb-testnet-rpc.bnbchain.org"],
    },
  },
  blockExplorers: {
    default: {
      name: "BscScan",
      url: "https://opbnb-testnet.bscscan.com",
      apiUrl: "https://api-testnet.bscscan.com/api",
    },
  },
  contracts: {
    ...chainConfig.contracts,
    l2OutputOracle: {
      [sourceId]: {
        address: "0xFf2394Bb843012562f4349C6632a0EcB92fC8810",
      },
    },
    multicall3: {
      address: "0xca11bde05977b3631167028862be2a173976ca11",
      //   blockCreated: 5022,
    },
    portal: {
      [sourceId]: {
        address: "0x4386C8ABf2009aC0c263462Da568DD9d46e52a31",
        // blockCreated: 17482143,
      },
    },
    l1StandardBridge: {
      [sourceId]: {
        address: "0x677311Fd2cCc511Bbc0f581E8d9a07B033D5E840",
        // blockCreated: 17482143,
      },
    },
  },
  sourceId,
});

const L2OutputOracleAbi = [
  "function latestBlockNumber() external view returns (uint256)",
];

async function main() {
  console.log(`opBNB bridge test`);
  const publicClientL1 = createPublicClient({
    chain: bscTestnet,
    transport: http(),
  }).extend(publicActionsL1());
  const publicClientL2 = createPublicClient({
    chain: opbnbTestnet,
    transport: http(),
  }).extend(publicActionsL2());

  const txHash =
    "0xb5658f429c2d7895d2f0306791e1871d2e3f5b28489076aad7cfca89c45d075c";
  const receipt = await publicClientL2.getTransactionReceipt({ hash: txHash });
  console.dir({ receipt }, { depth: null });
  const [withdrawal] = await getWithdrawals(receipt);
  console.dir({ withdrawal }, { depth: null });

  const latestBlockNumberInL2OutputOracle = await publicClientL1.readContract({
    address: "0xFf2394Bb843012562f4349C6632a0EcB92fC8810",
    abi: parseAbi(L2OutputOracleAbi),
    functionName: "latestBlockNumber",
  });
  console.dir({ latestBlockNumberInL2OutputOracle }, { depth: null });
  const output = await publicClientL1.getL2Output({
    l2BlockNumber: latestBlockNumberInL2OutputOracle,
    targetChain: opbnbTestnet,
  });
  console.dir({ output }, { depth: null });

  // Build parameters to prove the withdrawal on the L2.
  const proveArgs = await publicClientL2.buildProveWithdrawal({
    output,
    withdrawal,
  });
  console.dir({ proveArgs }, { depth: null });

  // check init account from wallet details: https://viem.sh/docs/clients/wallet#1-initialize-a-wallet-client-1
  const account = privateKeyToAccount(process.env.PRIVATE_KEY);
  const addr = account.address;
  console.dir({ addr }, { depth: null });
  const l1WalletClient = createWalletClient({
    account,
    chain: bscTestnet,
    transport: http(),
  }).extend(walletActionsL1());

  // send prove transaction
  // const proveTx = await l1WalletClient.proveWithdrawal(proveArgs)
  // console.dir({ proveTx }, { depth: null });

  // finalize
  const finalizeHash = await l1WalletClient.finalizeWithdrawal({
    targetChain: publicClientL2.chain,
    withdrawal,
  });
  console.dir({ finalizeHash }, { depth: null });
}

main();