launchpad_contract

TypeScript Solidity Boilerplate Starter Kit

A BoilerPlate Template Project To Start Solidity Development With Hardhat and Typescript. All you have to do is create a new repository from the template and start coding your smart contracts.

Hardhat Configuration

• Typechain plugin enabled (typescript type bindings for smart contracts)
• hardhat-deploy plugin enabled
• Testing environment configured and operational, with test coverage
• Prettier and eslint configured for project files and solidity smart contract
• Solhint configured for enforcing best practices
• Github actions workflows prepared for CI/CD
• Prepared Smart Contract Examples, Tests, Deployments and Tasks for Common ERC Standards (ERC20, ERC721, ERC1155)

Check the Hardhat documentation for more information.

https://hardhat.org/getting-started/

Project Structure

.
├── contracts
│   ├── BasicERC1155.sol
│   ├── BasicERC20.sol
│   └── BasicERC721.sol
├── deploy
│   ├── Deploy_BasicERC1155.ts
│   ├── Deploy_BasicERC20.ts
│   └── Deploy_BasicERC721.ts
├── deployments
├── hardhat.config.ts
├── tasks
│   ├── erc1155
│   ├── erc20
│   ├── erc721
│   └── utils
└── test
    ├── BasicERC1155.ts
    ├── BasicERC20.ts
    └── BasicERC721.ts

Supported Networks

• Hardhat Network (localhost)
• Ethereum Mainnet
• Ethereum Sepolia Testnet
• Polygon Mainnet
• Polygon Mumbai Testnet

Feel free to add more networks in hardhat.config.ts file.

Hardhat Shorthand

We recommend installing hh autocomplete so you can use hh shorthand globally.

npm i -g hardhat-shorthand

https://hardhat.org/guides/shorthand.html

Common Shorthand Commands

• hh compile - to compile smart contract and generate typechain ts bindings
• hh test - to run tests
• hh deploy - to deploy to local network (see options for more)
• hh node - to run a localhost node
• hh help - to see all available commands
• hh TABTAB - to use autocomplete

Usage

Setup

1. Install Dependencies

npm install

2. Compile Contracts

npm run compile

3. Environment Setup

Create .env file and add your environment variables. You can use .env.example as a template.

If you are going to use public network, make sure you include the right RPC provider for that network.

Make sure you include either MNEMONIC or PRIVATE_KEY in your .env file.

Example Flow - Deploy ERC721 Token

This is an example flow to deploy an ERC721 token to a public network and interact with it.

1. Deploy BasicERC721 Contract

hh deploy --network sepolia --tags BasicERC721

2. Verify Contract

hh --network sepolia etherscan-verify

3. Interact With Contract - Mint

hh erc721-mint \
 --contract 0x77337983A7D1699FaF51a5f43b9907fB7B614097 \
 --recipient 0x73faDd7E476a9Bc2dA6D1512A528366A3E50c3cF \
 --network sepolia

---

Testing

Run Tests

npm run test

Run Coverage

npm run coverage

---

Project Hygiene

Prettier - Non Solidity Files

npm run format:check
npm run format:write

Lint - Non Solidity Files

npm run lint:check
npm run lint:fix

Prettier - Solidity

npm run sol:format:check
npm run sol:format:write

Solhint - Enforcing styles and security best practices

npm run solhint