Certificate DApp

The Certificate DApp is a decentralized application that allows the issuance and verification of certificates securely on the blockchain. This DApp leverages Ethereum blockchain technology and smart contracts to ensure the integrity and authenticity of issued certificates. Built using React for the frontend and Solidity for the smart contract, this project ensures that certificate data remains tamper-proof and accessible to everyone.

✨ Features

• Issue Certificates: Only the admin account (who deployed the smart contract) can issue new certificates by connecting to MetaMask.
• View Certificates: Anyone can view issued certificates by connecting their MetaMask wallet.
• Blockchain Storage: All certificate details are stored on the blockchain, ensuring they are secure, immutable, and verifiable.
• MetaMask Integration: Connect your MetaMask wallet to interact with the DApp. Ensure you're on the correct network to interact with the deployed smart contract.

🚀 Getting Started

To get the Certificate DApp up and running on your local machine, follow these steps:

Prerequisites

Ensure you have Node.js, MetaMask, and a preferred smart contract deployment tool installed.

Smart Contract Deployment

1. Deploy the Smart Contract:

   • Deploy the Cert.sol smart contract located in the contracts folder using your preferred deployment application (e.g., Hardhat, Truffle, Remix, etc.).

   • After deploying, copy the contract ABI from the generated Cert.json file. Depending on your deployment tool, this file will be generated in the corresponding artifacts or build folder.

   • Paste the ABI into the Cert.json file located in the src/scdata folder of your project.

   • Copy the deployed contract address and paste it into the deployed_addresses.json file in the src/scdata folder.

Installation

2. Clone the repository:

   git clone https://github.com/akhilkailas017/Certificate-dApp.git
   cd certificate-dapp

3. Install the dependencies:

   npm install

4. Start the development server:

   npm run dev

5. Connect MetaMask:

   • Open MetaMask in your browser.
   • Connect to the correct network where the smart contract is deployed.

6. Done! Now you can start issuing and viewing certificates on the blockchain.

🔗 Connecting to MetaMask

• Before issuing or viewing certificates, make sure to connect your MetaMask wallet.
• Only the admin account (the account that deployed the smart contract) can issue certificates.
• Any connected user can view the issued certificates.

📜 Smart Contract Details

• Technology Used: React, Solidity
• Smart Contract Deployment: Can be deployed using Hardhat, Truffle, Remix, or any preferred application.
• Smart Contract ABI and Address:
  • ABI: Stored in src/scdata/Cert.json.
  • Address: Stored in src/scdata/deployed_addresses.json.

👤 Admin Access

• The account that deploys the smart contract becomes the admin. This account has exclusive rights to issue certificates.
• Ensure that your MetaMask wallet is connected to the admin account to access the certificate issuance page.

🛠️ Tech Stack

• Frontend: React.js
• Blockchain: Ethereum
• Smart Contract Language: Solidity
• Wallet Integration: MetaMask

📝 Usage

1. Issue Certificate:

   • Navigate to the "Issue Certificate" page.
   • Ensure you're connected to MetaMask as the admin.
   • Fill in the certificate details and click "Issue".

2. View Certificate:

   • Navigate to the "View Certificate" page.
   • Connect to MetaMask with any account.
   • Enter the certificate ID to view its details on the blockchain.

🎥 Demo Video

📧 Contact

For any questions or issues, please contact [email protected].

📜 License

This project is licensed under the MIT License.