Blockchain DApp Project - Buy Me a Chai

This project is a decentralized application (DApp) where users can "buy chai" by sending a small amount of cryptocurrency (ETH) along with a message. This DApp showcases a simple way to send Ethereum transactions and messages on the blockchain.

Table of Contents

• Features
• Project Structure
• Technologies Used
• Getting Started
  • Prerequisites
  • Installation
  • Running the DApp
• Contract Deployment
• Usage
• License

Features

• Users can send ETH to "buy chai" and leave a message.
• Each transaction is stored on the blockchain.
• Displays a list of recent messages and chai purchases.
• Shows the account of the user making the transaction.

Technologies Used

• Solidity: For writing the smart contract.
• React: For the frontend interface.
• Ethers.js: To interact with the Ethereum blockchain from the frontend.
• Hardhat: For smart contract development and deployment.
• Metamask: Wallet integration for Ethereum transactions.

Getting Started

Prerequisites

• Node.js and npm installed.
• Metamask extension in your browser.
• Hardhat installed globally.

Installation

1. Clone the repository:

   git clone https://github.com/Yashkrit-Singh/hardhat_Project_ChaiDapp.git
   cd your-repo-name
   

2. Install dependencies:

   npm install
   

3. Navigate to the client folder and install dependencies for the frontend:

   cd client
   npm install
   

Running the DApp

1. Start the Hardhat Node:

   npx hardhat node
   

2. Deploy the Contract:

   • In a new terminal, deploy the contract on the local Hardhat network:

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

   • To deploy the contract to a testnet (like Sepolia), update the hardhat.config.cjs file with your API keys and deploy it:

       npx hardhat run scripts/deploy.js --network sepolia
     

3. Run the Frontend:

   cd client
   npm start
   
   

Usage

• Connect Wallet: Open the DApp and connect your Metamask wallet.
• Buy Chai: Enter your name, message, and click "Pay" to send ETH along with your message.
• View Memos: All messages and transactions are displayed in the "Memos" section.

License

This project is licensed under the MIT License - see the LICENSE file for details.