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Using Hardhat

Welcome to our beginners guide to ISME L2 EVM contracts and dApp development. This tutorial aims to quickly get you set up to build something from scratch.

Hardhat is an Ethereum development environment. Compile your contracts and run them on a development network. Get Solidity stack traces, console.log and more.

You can use Hardhat to edit, compile, debug, and deploy your smart contracts to ISME L2.

Creating a Hardhat Project​

  1. Create a directory for your project:
mkdir hardhat && cd hardhat
  1. Initialize the project, which will create a package.json file
npm init -y
  1. Install Hardhat
npm install hardhat
  1. Create a project
$ npx hardhat init
888    888                      888 888               888
888    888                      888 888               888
888    888                      888 888               888
8888888888  8888b.  888d888 .d88888 88888b.   8888b.  888888
888    888     "88b 888P"  d88" 888 888 "88b     "88b 888
888    888 .d888888 888    888  888 888  888 .d888888 888
888    888 888  888 888    Y88b 888 888  888 888  888 Y88b.
888    888 "Y888888 888     "Y88888 888  888 "Y888888  "Y888

👷 Welcome to Hardhat v2.22.3 👷‍

? What do you want to do? …
  Create a JavaScript project
  Create a TypeScript project
  Create a TypeScript project (with Viem)
❯ Create an empty hardhat.config.js
  Quit

Get ISME L2 Testnet Token​

Faucet: https://testnet-l2faucet.onebitdev.com

Ps. Receive 1 ETH per request/24hours

Deploy to ISME L2 Testnet​

When Hardhat is run, it searches for the closest hardhat.config.js file starting from the current working directory. This file normally lives in the ISME of your project and an empty hardhat.config.js is enough for Hardhat to work. The entirety of your setup is contained in this file.

Add ISME L2 Testnet to your hardhat.config.js

l2root: {
    url: `https://testnet-l2root.onebitdev.com`,
    chainId: 901,
    accounts: [YOUR_PRIVATE_KEY]
}

Deploy:

npx hardhat run scripts/deploy.js --network l2root