wojciech-turek / blast-custom-erc20-bridging

A sample code on how to bridge custom ERC20 tokens on blast testnet.

Token Bridging ETH Sepolia => Blast Sepolia

This repo is a minimal demo how to bridge custom ERC20 tokens from ETH Sepolia to Blast Sepolia.

Environment Setup

Update the .env file with the following environment variables:

PRIVATE_KEY="0x..."

Deployment and Bridging

Deploy L1ERC20.sol to ETH Sepolia

npx hardhat deploy --network ethereum-sepolia --tags MyCustomL1Token

Update the deployment script with the previously deployed L1 contract address and deploy L2ERC20.sol to Blast Sepolia

npx hardhat deploy --network ethereum-sepolia --tags MyCustomL2Token

Bridge 1 token (configurable in config.ts) from ETH Sepolia to Blast Sepolia

npx hardhat run scripts/bridge.ts