How to use JS SDK bridge token between Ethereum and Manta

Bridge ETH/ERC20 Between L1 and L2

Repo Link: bridge-between-l1-l2

Install

yarn

Setting Account

Prepare an account private key on L1 Sepolia and need some ETH

// open .env file
PRIVATE_KEY = YOUR_PRIVATE_KEY;

Choose Network

// mainnet
const networkConfig = config.mainnet;

// sepolia testnet
const networkConfig = config.sepoliaTestnet;

Bridge ETH from L1 to L2

await depositETH();

Bridge ERC20 Token from L1 to L2

// need to fill in the corresponding token address and decimals first
const erc20Token = {
    l1Address: "",
    l2Address: "",
    decimals: 18,
};
await depositERC20();

Bridge ETH/ERC20 from L2 to L1

1. Initiate Withdrawal

// withdraw ETH
const withdrawTxhash = await withdrawETH();

// withdraw ERC20 token
const withdrawTxhash = await withdrawERC20();

2. Wait for 45 minutes
3. Prove Withdrawal

await proveWithdrawMessage(withdrawTxhash);

4. Wait for 3 days (Testnet: one minute)

5. Claim Withdrawal

await finalizeWithdrawMessage(withdrawTxhash);

Bridge History

• Check history and status on SocialScan
  • Mainnet: https://manta.socialscan.io/address/${address}#exitTxns
  • Testnet: https://manta-sepolia-testnet.socialscan.io/address/${address}#exitTxns
• Check history and status via SocialScan's API
  • Mainnet: https://api.w3w.ai/manta-pacific/v1/explorer/l2_to_l1_transactions?address=${address}
  • Testnet: https://api.w3w.ai/manta-sepolia-testnet/v2/explorer/l2_to_l1_transactions?address=${address}

Withdraw Status

export enum WithdrawStatus {
    WAIT_TO_PROVE = 1,
    READY_TO_PROVE = 2,
    IN_CHALLENGE_PERIOD = 3,
    READY_FOR_RELAY = 4,
    RELAYED = 5,
}