b0nesss/hardhat-fund-me

Advanced Sample Hardhat Project

This project was made during the 32 hour solidity course of Patrick Collins and demonstrates an advanced Hardhat use case, integrating other tools commonly used alongside Hardhat in the ecosystem.

The project comes with a sample contract, a test for that contract, a sample script that deploys that contract, and an example of a task implementation, which simply lists the available accounts. It also comes with a variety of other tools, preconfigured to work with the project code.

Try running some of the following tasks:

yarn hardhat accounts
yarn hardhat compile
yarn hardhat clean
yarn hardhat test
yarn hardhat node
yarn hardhat help
REPORT_GAS=true yarn hardhat test
yarn hardhat coverage
yarn hardhat run scripts/deploy.js
yarn scripts/deploy.js
yarn eslint '**/*.js'
yarn eslint '**/*.js' --fix
yarn prettier '**/*.{json,sol,md}' --check
yarn prettier '**/*.{json,sol,md}' --write
yarn solhint 'contracts/**/*.sol'
yarn solhint 'contracts/**/*.sol' --fix

Etherscan verification

To try out Etherscan verification, you first need to deploy a contract to an Ethereum network that's supported by Etherscan, such as sepolia.

In this project, copy the .env.example file to a file named .env, and then edit it to fill in the details. Enter your Etherscan API key, your sepolia node URL (eg from Alchemy), and the private key of the account which will send the deployment transaction. With a valid .env file in place, first deploy your contract:

hardhat run --network sepolia scripts/deploy.js

Then, copy the deployment address and paste it in to replace DEPLOYED_CONTRACT_ADDRESS in this command:

yarn hardhat verify --network sepolia DEPLOYED_CONTRACT_ADDRESS "Hello, Hardhat!"