My favorite setup for writing Solidity smart contracts.
- Hardhat: compile and run the smart contracts on a local development network
- TypeChain: generate TypeScript types for smart contracts
- Ethers: renowned Ethereum library and wallet implementation
- Hardhat Toolbox: bundles all recommended packages and plugins. Good alternative for Waffle
- Solhint: linter
- Solcover: code coverage
- Prettier Plugin Solidity: code formatter
This is a GitHub template, which means you can reuse it as many times as you want. You can do that by clicking the "Use this template" button at the top of the page.
Before running any command, you need to create a .env file and set a BIP-39 compatible mnemonic as an environment
variable. Follow the example in .env.example. If you don't already have a mnemonic, use this website to generate one.
Then, proceed with installing dependencies:
yarn installCompile the smart contracts with Hardhat:
$ yarn compileCompile the smart contracts and generate TypeChain artifacts:
$ yarn typechainLint the Solidity code:
$ yarn lint:solLint the TypeScript code:
$ yarn lint:tsRun the Mocha tests:
$ yarn testGenerate the code coverage report:
$ yarn coverageSee the gas usage per unit test and average gas per method call:
$ REPORT_GAS=true yarn testDelete the smart contract artifacts, the coverage reports and the Hardhat cache:
$ yarn cleanDeploy the contracts to Hardhat Network:
$ yarn deploy --greeting "Bonjour, le monde!"If you use VSCode, you can enjoy syntax highlighting for your Solidity code via the vscode-solidity extension. The recommended approach to set the compiler version is to add the following fields to your VSCode user settings:
{
"solidity.compileUsingRemoteVersion": "v0.8.4+commit.c7e474f2",
"solidity.defaultCompiler": "remote"
}Where of course v0.8.4+commit.c7e474f2 can be replaced with any other version.