Greetings - Dapp

This is a project to learn about writing a simple smart contract using Solidity and using Hardhat's sample project template, deploying it on local and testnet as well as testing with it

Table of contents

• Technologies

• Setup

• Instructions

Technologies

• Solidity

• React

• Hardhat

• Ethers

• Hardhat-Waffle

• Hardhat-ethers

• Chai

• dotenv

Setup

1. Create a directory

2. cd into that directory and run $ npx create-react-app [project name]

3. Install project dependencies

$ npm i -D hardhat ethers chai dotenv @nomiclabs/hardhat-ethers @nomiclabs/hardhat-waffle

4. Create a hardhat project by running

 $ npx hardhat

5. Select > Create simple project option

Instructions

Config

• Go to hardhat.config.js

• Updade Solidity to proper version

• Set artifacts path in src when project is compiled

paths: {
    artifacts: "./src/artifacts",
  },

• Configure local network for local testing

networks: {
    hardhat: {
      chainId: 1337,
    },

• Create .env file in root directory and add dotenv dependency in config file

Compile Contract

$ npx hardhat compile

Deploy (localhost)

• Generate hardhat local testing enviroment

npx hardhat node

$ npx hardhat run scripts/deploy.js --network localhost

Deploy (testnet)

• Generate hardhat local testing enviroment

$ npx hardhat node

$ npx hardhat run scripts/deploy.js --network [testnet name]

Connect Metamask

• Import local testing accounts to metamask using private key or get currency from testnet facuet and connect to testnet

React

• Connect to react

$ npm start