hardhat boilerplate code and dapp starter

# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.

# dependencies

/node_modules

/.pnp

.pnp.js

# testing

/coverage

# production

/build

# misc

.DS_Store

.env.local

.env.development.local

.env.test.local

.env.production.local

npm-debug.log*

yarn-debug.log*

yarn-error.log*

node_modules

.env

# Hardhat files

/cache

/artifacts

# TypeChain files

/typechain

/typechain-types

# solidity-coverage files

/coverage

/coverage.json

# Hardhat Ignition default folder for deployments against a local node

ignition/deployments/chain-31337

Some notes:

For this dapp, I followed the HashLips tutorial https://www.youtube.com/watch?v=021VzH7mqSg. This tutorial is from 2022 and I mostly worked through this project at the end of 2024. This tutorial was not that old, but many of the API and project setup references were deprecated.

The sample project you get when installing Hardhat is different from the one referenced in the example. The project in the HashLips video is "Greeter," while the project I got was "Lock."

Install minimal dependencies at first out of that list.

For deployment, see https://hardhat.org/hardhat-runner/docs/guides/deploying. There is no deployment script in the current version, just this command. 

----------------------------------------------------

# Getting Started with Create React App

This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).

## Available Scripts

In the project directory, you can run:

### `npm start`

Runs the app in the development mode.\

Open [http://localhost:3000](http://localhost:3000) to view it in your browser.

The page will reload when you make changes.\

You may also see any lint errors in the console.

### `npm test`

Launches the test runner in the interactive watch mode.\

See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.

### `npm run build`

Builds the app for production to the `build` folder.\

It correctly bundles React in production mode and optimizes the build for the best performance.

The build is minified and the filenames include the hashes.\

Your app is ready to be deployed!

See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.

### `npm run eject`

**Note: this is a one-way operation. Once you `eject`, you can't go back!**

If you aren't satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.

Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you're on your own.

You don't have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn't feel obligated to use this feature. However we understand that this tool wouldn't be useful if you couldn't customize it when you are ready for it.

## Learn More

You can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).

To learn React, check out the [React documentation](https://reactjs.org/).

### Code Splitting

This section has moved here: [https://facebook.github.io/create-react-app/docs/code-splitting](https://facebook.github.io/create-react-app/docs/code-splitting)

### Analyzing the Bundle Size

This section has moved here: [https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size](https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size)

### Making a Progressive Web App

This section has moved here: [https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app](https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app)

### Advanced Configuration

This section has moved here: [https://facebook.github.io/create-react-app/docs/advanced-configuration](https://facebook.github.io/create-react-app/docs/advanced-configuration)

### Deployment

This section has moved here: [https://facebook.github.io/create-react-app/docs/deployment](https://facebook.github.io/create-react-app/docs/deployment)

### `npm run build` fails to minify

This section has moved here: [https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify](https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify)

// SPDX-License-Identifier: UNLICENSED

pragma solidity ^0.8.27;

// Uncomment this line to use console.log

// import "hardhat/console.sol";

contract Lock {

    uint public unlockTime;

    address payable public owner;

    event Withdrawal(uint amount, uint when);

    constructor(uint _unlockTime) payable {

        require(

            block.timestamp < _unlockTime,

            "Unlock time should be in the future"

        );

        unlockTime = _unlockTime;

        owner = payable(msg.sender);

    }

    function withdraw() public {

        // Uncomment this line, and the import of "hardhat/console.sol", to print a log in your terminal

        // console.log("Unlock time is %o and block timestamp is %o", unlockTime, block.timestamp);

        require(block.timestamp >= unlockTime, "You can't withdraw yet");

        require(msg.sender == owner, "You aren't the owner");

        emit Withdrawal(address(this).balance, block.timestamp);

        owner.transfer(address(this).balance);

    }

}

import { HardhatUserConfig } from "hardhat/config";

import "@nomicfoundation/hardhat-toolbox";

const config: HardhatUserConfig = {

  solidity: "0.8.27",

  paths: {

    "artifacts": "./src/artifacts",

  },

  networks: {

    hardhat: {

      chainId: 1337, // MetaMask always looks for chainId 1337

    },

  },

};

export default config;

{

  "_format": "hh-sol-dbg-1",

  "buildInfo": "../build-info/d228c7e93fde6b65bacea9821d90d085.json"

}

 No newline at end of file