A simplified blockchain implementation with proof-of-work mining, REST API microservice, and React frontend for visualization.

Rahman Azhar

This project implements a basic blockchain with proof-of-work mining and provides both a REST API microservice and a React-based frontend interface. The blockchain maintains data integrity through SHA-256 hashing and includes validation mechanisms to ensure chain consistency.

• Blockchain implementation with proof-of-work mining
• Chain validation system
• REST API endpoints for blockchain interaction
• React frontend for blockchain visualization
• Docker containerization for easy deployment

• /pkg/blockchain: Core blockchain implementation
• /api: REST API server implementation
• /frontend: React frontend application
• main.go: Backend application entry point
• Dockerfile & docker-compose.yml: Container configuration

1. Build and start the services:

docker-compose up --build

2. Access the application:

• Frontend: http://localhost:3000
• Backend API: http://localhost:8080

Returns the current state of the blockchain and its validity status.

Response format:

{
    "blocks": [
        {
            "timestamp": 1234567890,
            "data": "Block Data",
            "hash": "block_hash",
            "prevHash": "previous_block_hash",
            "nonce": 123
        }
    ],
    "valid": true
}

Adds a new block to the blockchain.

Request format:

{
    "data": "Your block data here"
}

• Backend: Go
• Frontend: React with Chakra UI
• Containerization: Docker & Docker Compose
• Hashing: SHA-256
• State Management: React Hooks
• API Communication: Axios
• Styling: Chakra UI components

To run the services separately for development:

1. Backend:

go run main.go

2. Frontend:

cd frontend
npm install
npm start

• Real-time blockchain visualization
• Block mining with proof-of-work
• Chain validation checking
• Interactive block addition
• Responsive design
• Automatic chain updates