Hardhat Using Typescript

This project is a simple demonstration of using Hardhat with TypeScript to develop, compile, test, and deploy smart contracts.

Creating a Hardhat + TypeScript Project From Scratch

1. Initialize NPM

mkdir ts-hardhat
cd ts-hardhat
npm init

2. Install Hardhat

npm install --save-dev hardhat

3. Create Hardhat Project

npx hardhat --init

Compile Your Contracts

To compile your Solidity smart contracts:

npx hardhat compile

This generates artifacts in the artifacts/ folder.

Run Tests

Your test files live inside the test/ folder.

To run tests:

npx hardhat test

Deploying the Contract

The deployment script is inside scripts/deploy.ts.

Example deploy.ts

import { network } from "hardhat";

const { ethers } = await network.connect();

async function main() {
  const contractFactory = await ethers.getContractFactory('FundMe');
  const fundMe = await contractFactory.deploy();
  const address = await fundMe.getAddress();

  console.log(`Contract deploy at ${address}`);
}

main()
  .then(() => process.exit(0))
  .catch((err) => process.exit(1))

Run Deployment

• Deploy the contract

npx hardhat run scripts/deploy.ts

• Deploy to a Custom Network (Example: Hardhat Local Node)

  1. Start node:

  npx hardhat node

  2. Deploy:

  npx hardhat run scripts/deploy.ts --network hardhatLocal

Summary of Commands

Purpose	Command
Create project	npx hardhat --init
Compile contracts	npx hardhat compile
Run tests	npx hardhat test
Deploy	npx hardhat run scripts/deploy.ts --network <network>
Start local node	npx hardhat node