Polygon_OZG

• Polygon_OZG
  • Example Lx/Ly Bridge
  • Setup
    • Frontend
    • Smart Contract
  • Resources

Example Lx/Ly Bridge

This application is an example of both frontend and smart contract implmentation of lx/ly bridge for ERC20 token bridging.

Frontend Claim Function Listener

Setup

Frontend

• Add the Wallet Connect project id to src/app/providers.tsx
• File To Edit

cd proto
yarn
yarn dev

Smart Contract

cd erc20bridge
npm i
npx hardhat compile

Smart Contract Addresses :

{
  "ERC20BridgeMainnet": "0x60281F9DE2c0311B5E9A407A658f6Da2F6d026b3",
  "ERC20BridgezkEVM": "0x8A82c434F2701A44258173287aa0497856735386",
  "erc20MainnetToken": "0x6c55287976DAd6AD30F55fdEF2F1268FDA84e0db",
  "erc20zkEVMToken": "0xea4e3eB04d7EEb22B679D7d753AcCf5e54c6C019",
  "deployerAddress": "0x858a9477F74baa24a7F062b74A7f2D064443DF2E",
  "tokenName": "customTokenName",
  "tokenSymbol": "CTN",
  "tokenInitialBalance": "1000000000000000000000000000"
}

All addresses are on testnet.

• Bridging from göerliETH to zkEVMTestnet can be done from the frontend.
• But we need to run a claim listener in order to process the claims when ready.

To run the claim listener :

npm run monitor:polygonZKEVMTestnet

ENV example :

MNEMONIC="test test test test test test test test test test test junk"
INFURA_PROJECT_ID=""
ETHERSCAN_API_KEY=""
ETHERSCAN_ZKEVM_API_KEY=""
PVTKEY=""

Resources

Problem Statement Link :

https://pushprotocol.notion.site/Polygon-557f8054f87e4dec8fe14fd55e76becd

More Code Examples :

https://github.com/0xPolygonHermez/code-examples

How ZkEVM Bridge Works ? :

https://wiki.polygon.technology/docs/zkevm/protocol/zkevm-bridge/