This is a modified version of ETH Balance Checker contract ready for Optimistic Ethereum added on top of the official Optimism Tutorial
We're using an Ethereum development framework called Hardhat to make our lives a lot easier. If you haven't used Hardhat before, we hope you'll be pleasantly surprised! Hardhat is well designed and full of useful features. Go ahead and set up Hardhat by running:
yarn install
yarn compile
yarn test
If everything is going as planned, you should see a bunch of green checkmarks.
The BalanceChecker contract has been deployed to Optimism (Kovan) at the address:
0x8583d862c067624178dca3e2ee172878f1d1eaa8