N17R - Web3, Day 1

This repo teaches you a basic use of hardhat for smart contracts development. We are going to create a simple implementation of ERC20 standard, test it and deploy to testnet.

Setup

This project was bootstrapped using npx hardhat init CLI tool. Please refer to this page for more information.

Install

git clone https://github.com/ironsoul0/n17r-web3-day1
cd n17r-web3-day1
yarn

Scripts

All scripts that you can use are defined in package.json under scripts. Let's go through each of them.

1. Run local hardhat chain for deploying smart contracts.

yarn chain

2. Deploy smart contracts to local chain. This requires you to have an active instance of local chain running. Refer to scripts/deploy.js file for implementation.

yarn deploy

3. Run tests. No need for local chain running. Refer to test/erc20.js for implementation details.

yarn test

4. You can also deploy to Ethereum Rinkeby testnet by running the following command (advanced):

yarn deploy --network rinkeby

This will require you to create .env file inside your root folder with the following environment variables: RINKEBY_URL pointing to your Infura node, PRIVATE_KEY of your account.

Links

Please refer to these links for further understanding of Smart Contracts development.

• Solidity by Example
• CryptoZombies
• OpenZeppelin Smart Contracts