Metis bridge example

00-withdraw.mjs

import { ethers } from "ethers";
import { readFile } from "fs/promises";
import IL2StandardBridge from "./IL2StandardBridge.json" assert { type: "json" };
import OVM_GasPriceOracle from "./OVM_GasPriceOracle.json" assert { type: "json" };
import IERC20 from "./IERC20.json.json" assert { type: "json" };

const privateKey = await readFile("key.txt", { encoding: "utf-8" });

const rpcClient = new ethers.JsonRpcProvider(
  "https://andromeda.metis.io"
);

const wallet = new ethers.Wallet(privateKey, rpcClient);

const l2BridgeAddress = "0x4200000000000000000000000000000000000010"
const l2Bridge = new ethers.Contract(
  l1BridgeAddress,
  IL2StandardBridge,
  wallet
);

const oracle = new ethers.Contract("0x420000000000000000000000000000000000000F", OVM_GasPriceOracle, rpcClient)

const fee = await oracle.minErc20BridgeCost()
if (fee < 1e18){ // min to 1 Metis
  fee = 1e18
}

// to withdraw

// if you want to withdraw ETH, use 0x420000000000000000000000000000000000000A instead
// or change it to another one
const metisERC20 = "0xDeadDeAddeAddEAddeadDEaDDEAdDeaDDeAD0000"
const metisToken = new ethers.Contract(
  metisERC20,
  IERC20,
  wallet
);

const withdrawTokenValue = 1e16 // change it!
const withdrawToAddress = "__placeholder__"

// Approve your token to the bridge
await metisToken.approve(l2BridgeAddress, withdrawTokenValue)

const l1Gas = 20_0000 // your l1 gas limit

await l2Bridge.withdrawTo(metisERC20, withdrawToAddress, withdrawTokenValue, l1Gas, "", {value: fee})

01-deposit.mjs

import { ethers } from "ethers";
import { readFile } from "fs/promises";
import IL1StandardBridge from "./IL1StandardBridge.json" assert { type: "json" };
import Lib_AddressManager from "./Lib_AddressManager.json" assert { type: "json" };
import iMVM_DiscountOracle from "./iMVM_DiscountOracle.json" assert { type: "json" };
import IERC20 from "./IERC20.json" assert { type: "json" };

const privateKey = await readFile("key.txt", { encoding: "utf-8" });

const rpcClient = new ethers.JsonRpcProvider(
  "https://eth.llamarpc.com"
);

const addrManger = new ethers.Contract("0x918778e825747a892b17C66fe7D24C618262867d", Lib_AddressManager, rpcClient)

const oracle = new ethers.Contract(
  await addrManger.getAddress("MVM_DiscountOracle"),
  iMVM_DiscountOracle,
  rpcClient
);

const l2Gas = await oracle.getMinL2Gas() + 20_0000

const l2Fee = l2Gas * (await oracle.getDiscount())

const wallet = new ethers.Wallet(privateKey, rpcClient);

const l1BridgeAddress = "0x3980c9ed79d2c191A89E02Fa3529C60eD6e9c04b"
const l1Bridge = new ethers.Contract(
  l1BridgeAddress,
  IL1StandardBridge,
  wallet
);

const l2ChainId = 1088


// to deposit Ether

const depositToAddress = "__placeholder__"

const depositEther = 1e16 // change it!

await l1Bridge.depositETHToByChainId(l2ChainId, depositToAddress, l2Gas, "", {value: l2Fee + depositEther})


// to deposit ERC20 

const l1TokenAddress = "__placeholder__"

const l2TokenAddress = "__placeholder__"

const l1token = new ethers.Contract(
  l1TokenAddress,
  IERC20,
  wallet
);

const depositTokenValue = 1e16 // change it!

// Approve your token to the bridge
await l1token.approve(l1BridgeAddress, depositTokenValue)

await l1Bridge.depositERC20ToByChainId(l2ChainId, l1TokenAddress, l2TokenAddress,depositToAddress, depositTokenValue, l2Gas, "", {value: l2Fee})

IERC20.json

[
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "internalType": "address",
        "name": "owner",
        "type": "address"
      },
      {
        "indexed": true,
        "internalType": "address",
        "name": "spender",
        "type": "address"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "Approval",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "internalType": "address",
        "name": "from",
        "type": "address"
      },
      {
        "indexed": true,
        "internalType": "address",
        "name": "to",
        "type": "address"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "Transfer",
    "type": "event"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "owner",
        "type": "address"
      },
      {
        "internalType": "address",
        "name": "spender",
        "type": "address"
      }
    ],
    "name": "allowance",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "spender",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "amount",
        "type": "uint256"
      }
    ],
    "name": "approve",
    "outputs": [
      {
        "internalType": "bool",
        "name": "",
        "type": "bool"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "account",
        "type": "address"
      }
    ],
    "name": "balanceOf",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "totalSupply",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "recipient",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "amount",
        "type": "uint256"
      }
    ],
    "name": "transfer",
    "outputs": [
      {
        "internalType": "bool",
        "name": "",
        "type": "bool"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "sender",
        "type": "address"
      },
      {
        "internalType": "address",
        "name": "recipient",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "amount",
        "type": "uint256"
      }
    ],
    "name": "transferFrom",
    "outputs": [
      {
        "internalType": "bool",
        "name": "",
        "type": "bool"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  }
]

IL1StandardBridge.json

[
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "_chainid",
        "type": "uint256"
      },
      {
        "internalType": "address",
        "name": "_l1Token",
        "type": "address"
      },
      {
        "internalType": "address",
        "name": "_l2Token",
        "type": "address"
      },
      {
        "internalType": "address",
        "name": "_to",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "_amount",
        "type": "uint256"
      },
      {
        "internalType": "uint32",
        "name": "_l2Gas",
        "type": "uint32"
      },
      {
        "internalType": "bytes",
        "name": "_data",
        "type": "bytes"
      }
    ],
    "name": "depositERC20ToByChainId",
    "outputs": [],
    "stateMutability": "payable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "_chainId",
        "type": "uint256"
      },
      {
        "internalType": "address",
        "name": "_to",
        "type": "address"
      },
      {
        "internalType": "uint32",
        "name": "_l2Gas",
        "type": "uint32"
      },
      {
        "internalType": "bytes",
        "name": "_data",
        "type": "bytes"
      }
    ],
    "name": "depositETHToByChainId",
    "outputs": [],
    "stateMutability": "payable",
    "type": "function"
  }
]

iMVM_DiscountOracle.json

[
  {
    "inputs": [],
    "name": "getDiscount",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "getMinL2Gas",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "_sender",
        "type": "address"
      }
    ],
    "name": "isXDomainSenderAllowed",
    "outputs": [
      {
        "internalType": "bool",
        "name": "",
        "type": "bool"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "sender",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "_chainId",
        "type": "uint256"
      }
    ],
    "name": "processL2SeqGas",
    "outputs": [],
    "stateMutability": "payable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "bool",
        "name": "_allowAllXDomainSenders",
        "type": "bool"
      }
    ],
    "name": "setAllowAllXDomainSenders",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "_discount",
        "type": "uint256"
      }
    ],
    "name": "setDiscount",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "_minL2Gas",
        "type": "uint256"
      }
    ],
    "name": "setMinL2Gas",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "_sender",
        "type": "address"
      },
      {
        "internalType": "bool",
        "name": "_isWhitelisted",
        "type": "bool"
      }
    ],
    "name": "setWhitelistedXDomainSender",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  }
]

Lib_AddressManager.json

[
  {
    "inputs": [
      {
        "internalType": "string",
        "name": "_name",
        "type": "string"
      }
    ],
    "name": "getAddress",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  }
]

OVM_GasPriceOracle.json

[
  {
    "inputs": [],
    "name": "decimals",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "gasPrice",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "bytes",
        "name": "_data",
        "type": "bytes"
      }
    ],
    "name": "getL1Fee",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "bytes",
        "name": "_data",
        "type": "bytes"
      }
    ],
    "name": "getL1GasUsed",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "l1BaseFee",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "minErc20BridgeCost",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "overhead",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "owner",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "scalar",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  }
]