Hardhat Minimal Setup project

I created this project as a reminder or, if you like, a template for future projects.

This project uses and is ready to configure the following plugins:

• solidity-coverage - coverage of contract code with tests
• hardhat-gas-reporter - gas cost estimate, uses CoinMarketCap to get prices
• hardhat-etherscan - to verify contracts on Etherscan/Bscscan/etc

Also in hardhat.config.json I added the setting for working with the actual Goerli test network using the Alchemy service.

WARNING: copy .env.example to .env!

Project creatiion

The following commands have been used:

mkdir {project}
cd {project}
npm init
npm install --save-dev hardhat
npx hardhat

Typical commands when working with a project

Compilation

npx hardhat clean && npx hardhat compile

Running tests, checking code coverage with tests

npx hardhat test [--grep text]
REPORT_GAS=true npx hardhat test
npx hardhat coverage

In test code, you can add .only to it to run a specific test, or you can use grep in the console when calling the tests.

Tasks

The tasks code is in the tasks folder, the launch examples is in the code.

Running a local node and deploying a contract on it

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

Running a local node in fork mode

There is ALCHEMY_FORK_API_KEY parameter in the .env.example should be set.

npx hardhat node --config hardhat-fork.config.js

Contract code verification on Etherscan

npx hardhat verify --network goerli {contractAddress}

Command line completion

For convenience, in order not to write npx hardhat and commands are automatically substituted, you can:

sudo npm install --global hardhat-shorthand
hardhat-completion install

Now you can type commands as follows by finishing them with TAB:

> hh te[press TAB]
> hh test