Sample Hardhat Project

This project demonstrates a basic Hardhat use case. It comes with a sample contract, a test for that contract, and a Hardhat Ignition module that deploys that contract.

Try running some of the following tasks:

npx hardhat help
npx hardhat test
REPORT_GAS=true npx hardhat test
npx hardhat node
npx hardhat ignition deploy ./ignition/modules/Lock.js

LOR DApp

This project is a decentralized application (DApp) for managing Letters of Recommendation (LOR) using Ethereum smart contracts. It includes smart contracts, deployment scripts, and a React-based frontend.

Prerequisites

• Node.js & npm
• Hardhat (for smart contract development)
• MetaMask (for interacting with the frontend)

Project Structure

• contracts/ — Solidity smart contracts
• scripts/ — Deployment scripts
• test/ — Test scripts for smart contracts
• front/ — React frontend

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Running Tests

1. Install dependencies:

   npm install

2. Run tests:

   npx hardhat test

   This will execute all tests in the test/ directory.

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Deploying Smart Contracts

1. Compile contracts:

   npx hardhat compile

2. Deploy to local network:

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

   To deploy to Sepolia or another testnet, configure your network in hardhat.config.js and use:

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

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Starting the Frontend

1. Navigate to the frontend directory:

   cd front

2. Install frontend dependencies:

   npm install

3. Start the frontend app:

   npm start

   The app will be available at http://localhost:3000.

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Notes

• Ensure your wallet (e.g., MetaMask) is connected to the correct network (local, Sepolia, etc.)
• Update contract addresses in the frontend as needed after deployment.
• Only authorized accounts can approve recommendations.

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Troubleshooting

• If you encounter issues, check your network configuration and contract addresses.
• For more details, see the comments in the source files.