Synapse Ledger

Decentralized Data Marketplace for Ethical AI Training

🌟 Overview

Synapse Ledger revolutionizes the data economy by enabling individuals to monetize anonymized data while providing AI developers access to ethically-sourced, verified datasets. Our platform uses blockchain-based smart contracts for transparent royalty distribution, IPFS for decentralized storage, and advanced privacy-preserving mechanisms.

🎯 Mission

To create a transparent, fair, and decentralized data marketplace that empowers data contributors while accelerating ethical AI development.

✨ Features

👥 For Data Contributors

📤 Data Upload & Anonymization - Securely upload photos, text, code repositories
💰 Real-time Royalty Tracking - Monitor earnings and payment distribution
🔒 Privacy Controls - Maintain anonymity with advanced privacy mechanisms
🎯 Stake Management - Participate in targeted data pools for higher rewards

🤖 For AI Developers

🛒 Dataset Marketplace - Browse, filter, and purchase verified datasets
📊 Quality Metrics - Access metadata, quality scores, and provenance verification
🔌 API Integration - Seamless data access with comprehensive APIs
📈 Usage Analytics - Track data usage and compliance metrics
✅ Regulatory Compliance - Built-in compliance checks and documentation

🏛️ Platform Features

⚡ Smart Contract Automation - Automated royalty distribution
🏆 Community Quality Scoring - Decentralized data quality assessment
🗳️ DAO Governance - Community-driven platform decisions
🔄 Federated Learning Compatible - On-device preprocessing support

🛠️ Tech Stack

Layer	Technologies
Frontend	Next.js 15, React 19, TypeScript, Tailwind CSS
Backend	Node.js, Express, TypeScript, Drizzle ORM
Smart Contracts	Solidity, Hardhat, OpenZeppelin, Ethereum
Storage	Pinata, IPFS
Web3	Ethers.js v6
Database	PostgreSQL with Drizzle ORM
UI Components	Radix UI, shadcn/ui, Lucide Icons
Deployment	Docker, Vercel

🏗️ System Architecture

┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│   Frontend      │    │   Backend       │    │ Smart Contracts │
│   (Next.js)     │◄──►│   (Node.js)     │◄──►│   (Solidity)    │
│                 │    │                 │    │                 │
│ • Wallet UI     │    │ • REST API      │    │ • DataRegistry  │
│ • Marketplace   │    │ • Express       │    │ • RoyaltyDist   │
│ • Data Upload   │    │ • Drizzle ORM   │    │ • SynTK Token   │
│ • Dashboard     │    │ • IPFS Service  │    │ • Marketplace   │
└─────────────────┘    └─────────────────┘    └─────────────────┘
         │                       │                       │
         └───────────────────────┼───────────────────────┘
                                 │
                    ┌─────────────────┐
                    │   Storage       │
                    │   (IPFS/Pinata) │
                    │                 │
                    │ • File Storage  │
                    │ • PostgreSQL    │
                    │ • Access Control│
                    └─────────────────┘

🚀 Getting Started

Prerequisites

Node.js 18+
PostgreSQL 15+
MetaMask or compatible Web3 wallet
Docker (optional, for database)

📦 Installation

1. Clone the Repository

git clone https://github.com/Soundcreates/Synapse.git
cd Synapse

2. Backend Setup (Node.js/TypeScript)

cd backend2
npm install
cp .env.example .env
# Configure your environment variables

# Option 1: Use Docker for PostgreSQL
docker-compose up -d

# Option 2: Use local PostgreSQL
# Make sure PostgreSQL is running locally

# Generate and run migrations
npm run db:generate
npm run migrate

# Start development server
npm run dev

3. Frontend Setup (Next.js)

cd client3
npm install
cp .env.example .env
# Configure your environment variables
npm run dev

4. Smart Contracts (Hardhat)

cd hardhat
npm install
cp .env.example .env
# Configure your environment variables
npx hardhat test
npx hardhat run scripts/deploy.js --network mumbai

🔧 Environment Configuration

Create .env files in each directory:

Backend (.env)

# Database Configuration
DATABASE_URL=postgresql://postgres:synapse@localhost:5432/SynapseDB

# Pinata IPFS Configuration
PINATA_API_KEY=your-pinata-api-key
PINATA_SECRET_API_KEY=your-pinata-secret-key

# Port Configuration
PORT=5000

# Blockchain Configuration
ETHEREUM_RPC_URL=https://sepolia.infura.io/v3/your-key

Frontend (.env)

# API Configuration
NEXT_PUBLIC_API_BASE_URL=http://localhost:5000

# Smart Contract Addresses
NEXT_PUBLIC_DATA_REGISTRY_ADDRESS=0x...
NEXT_PUBLIC_TOKEN_MARKETPLACE_ADDRESS=0x...
NEXT_PUBLIC_SYNTK_TOKEN_ADDRESS=0x...
NEXT_PUBLIC_ROYALTY_DISTRIBUTION_ADDRESS=0x...

# Pinata Configuration
NEXT_PUBLIC_PINATA_GATEWAY=https://gateway.pinata.cloud

# Network Configuration
NEXT_PUBLIC_CHAIN_ID=11155111
NEXT_PUBLIC_NETWORK_NAME=sepolia

Smart Contracts (.env)

PRIVATE_KEY=your-private-key
SEPOLIA_RPC_URL=https://sepolia.infura.io/v3/your-key
ETHERSCAN_API_KEY=your-etherscan-key

🐳 Docker Support

For easy development setup, you can use Docker for the PostgreSQL database:

cd backend2
docker-compose up -d

This will start a PostgreSQL container with the default configuration.

🚀 Development Workflow

Start the database: cd backend2 && docker-compose up -d
Run migrations: npm run migrate
Start backend: npm run dev (runs on port 5000)
Start frontend: cd ../client3 && npm run dev (runs on port 3000)
Deploy contracts: cd ../hardhat && npx hardhat run scripts/deploy.ts --network sepolia

🔗 Local Development URLs

Frontend: http://localhost:3000
Backend API: http://localhost:5000
Database Studio: npm run db:studio (Drizzle Studio)
PostgreSQL: localhost:5432

📋 Core Components

Smart Contracts

DataRegistry.sol - Core marketplace functionality for dataset registration
RoyaltyDistribution.sol - Automated royalty payment management
SynTK.sol - ERC-20 token for platform transactions and governance
TokenMarketplace.sol - Marketplace for trading data access tokens

Backend Services

Express API - RESTful endpoints for all platform operations
Drizzle ORM - Type-safe database operations with PostgreSQL
Pinata Service - IPFS file upload and retrieval management
Data Controllers - Dataset management and validation
Multer Middleware - File upload handling and processing

Frontend Features

Next.js 15 - Modern React framework with App Router
Wallet Integration - Seamless Web3 wallet connection with MetaMask
Data Upload - Intuitive file upload with progress tracking
Marketplace - Advanced search and filtering capabilities
Dashboard - Real-time analytics and earnings tracking
Responsive Design - Mobile-first design with Tailwind CSS
Component Library - Radix UI components with shadcn/ui styling

🧪 Testing & Quality Assurance

Smart Contracts

cd hardhat
npx hardhat test
npx hardhat coverage

Backend

cd backend2
npm test
npm run build

Frontend

cd client3
npm run lint
npm run build

Test Coverage Goals

Smart Contracts: >95% coverage
Backend: >85% coverage
Frontend: >80% coverage

🚢 Deployment

Production Deployment

Backend (Railway/Docker)

# Build the application
cd backend2
npm run build

# Deploy using Docker
docker build -t synapse-backend .
docker run -p 5000:5000 synapse-backend

Frontend (Vercel)

# Deploy to Vercel
cd client3
npm run build
vercel --prod

Smart Contracts (Sepolia/Ethereum)

cd hardhat
npx hardhat run scripts/deploy.ts --network sepolia
npx hardhat verify --network sepolia <contract-address>

Infrastructure

Backend: Docker containers (Railway, AWS, or self-hosted)
Frontend: Vercel (Static site generation)
Database: PostgreSQL (Docker, Railway, or AWS RDS)
Storage: Pinata IPFS for decentralized file storage
Blockchain: Ethereum Sepolia Testnet / Ethereum Mainnet

📊 Monitoring & Analytics

Health Monitoring

Backend: Health endpoints at /health
Database: PostgreSQL connection monitoring
Smart Contracts: Event monitoring and gas tracking
IPFS: File availability checks via Pinata

Performance Metrics

API response times and throughput
Database query performance
IPFS upload/download speeds
Smart contract gas optimization

Analytics Dashboards

User engagement metrics
Transaction volume and fees
Data quality scores
Revenue distribution

📂 Project Structure

Synapse/
├── backend2/                 # Node.js/Express backend
│   ├── config/              # Database configuration
│   ├── controller/          # API controllers
│   ├── middleware/          # Express middleware
│   ├── migrations/          # Database migrations
│   ├── models/              # Drizzle ORM models
│   ├── routes/              # API routes
│   ├── service/             # Business logic services
│   ├── docker-compose.yml   # PostgreSQL container
│   └── main.ts              # Application entry point
│
├── client3/                 # Next.js frontend
│   ├── app/                 # Next.js App Router pages
│   ├── components/          # React components
│   ├── contractData/        # Smart contract ABIs
│   ├── hooks/               # Custom React hooks
│   ├── lib/                 # Utility functions
│   ├── public/              # Static assets
│   └── utils/               # Helper utilities
│
├── hardhat/                 # Smart contracts
│   ├── contracts/           # Solidity contracts
│   ├── scripts/             # Deployment scripts
│   ├── test/                # Contract tests
│   └── typechain-types/     # Generated TypeScript types
│
└── docs/                    # Documentation files

🗺️ Roadmap

Phase 1 - Core Platform ✅

Smart contract development (DataRegistry, TokenMarketplace, SynTK, RoyaltyDistribution)
Backend API with Express and TypeScript
PostgreSQL database with Drizzle ORM
IPFS integration with Pinata
Next.js frontend with Web3 integration

Phase 2 - Enhanced Features �

Advanced search and filtering in marketplace
User authentication and profiles
Dataset quality scoring system
Royalty distribution automation
Mobile-responsive design improvements

Phase 3 - Community & Governance 📋

DAO governance implementation
Community-driven quality assessment
Staking and reward mechanisms
Advanced privacy features

Phase 4 - Scale & Enterprise 🏢

Multi-chain support (Polygon, Arbitrum)
Enterprise API packages
Advanced analytics dashboard
Regulatory compliance tools

🔧 Troubleshooting

Common Issues

Database Connection Issues

# Check if PostgreSQL is running
docker ps

# Restart the database container
cd backend2
docker-compose down
docker-compose up -d

# Check database logs
docker-compose logs postgres

Migration Issues

# Reset migrations (development only)
npm run clear-db
npm run db:generate
npm run migrate

Frontend Build Issues

# Clear Next.js cache
cd client3
rm -rf .next
npm run build

Smart Contract Deployment Issues

# Check network configuration
cd hardhat
npx hardhat verify --list-networks

# Check gas prices and account balance
npx hardhat balance --account <your-address>

Environment Variables Checklist

Make sure you have configured:

✅ Database connection string
✅ Pinata API keys
✅ Smart contract addresses
✅ RPC endpoints
✅ Private keys (for deployment)

🤝 Contributing

We welcome contributions! Please see our Contributing Guide for details.

Development Workflow

Fork the repository
Create a feature branch (git checkout -b feature/amazing-feature)
Commit your changes (git commit -m 'Add amazing feature')
Push to the branch (git push origin feature/amazing-feature)
Open a Pull Request

Code Standards

Follow existing code style and conventions
Write comprehensive tests for new features
Update documentation for API changes
Ensure all tests pass before submitting PR

📄 License

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

🔗 Links

Repository: GitHub - Synapse
Issues: Report bugs and feature requests
Discussions: GitHub Discussions
Releases: Latest releases

📞 Support

GitHub Issues: Report bugs and feature requests
GitHub Discussions: Technical discussions and questions
Email: Contact the development team through GitHub

Built with ❤️ by the Synapse Ledger Team

Empowering ethical AI through decentralized data markets

"

Name		Name	Last commit message	Last commit date
Latest commit History 61 Commits
backend2		backend2
client3		client3
hardhat		hardhat
.gitignore		.gitignore
README.md		README.md

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Synapse Ledger

🌟 Overview

🎯 Mission

✨ Features

👥 For Data Contributors

🤖 For AI Developers

🏛️ Platform Features

🛠️ Tech Stack

🏗️ System Architecture

🚀 Getting Started

Prerequisites

📦 Installation

1. Clone the Repository

2. Backend Setup (Node.js/TypeScript)

3. Frontend Setup (Next.js)

4. Smart Contracts (Hardhat)

🔧 Environment Configuration

Backend (.env)

Frontend (.env)

Smart Contracts (.env)

🐳 Docker Support

🚀 Development Workflow

🔗 Local Development URLs

📋 Core Components

Smart Contracts

Backend Services

Frontend Features

🧪 Testing & Quality Assurance

Smart Contracts

Backend

Frontend

Test Coverage Goals

🚢 Deployment

Production Deployment

Backend (Railway/Docker)

Frontend (Vercel)

Smart Contracts (Sepolia/Ethereum)

Infrastructure

📊 Monitoring & Analytics

Health Monitoring

Performance Metrics

Analytics Dashboards

📂 Project Structure

🗺️ Roadmap

Phase 1 - Core Platform ✅

Phase 2 - Enhanced Features �

Phase 3 - Community & Governance 📋

Phase 4 - Scale & Enterprise 🏢

🔧 Troubleshooting

Common Issues

Database Connection Issues

Migration Issues

Frontend Build Issues

Smart Contract Deployment Issues

Environment Variables Checklist

🤝 Contributing

Development Workflow

Code Standards

📄 License

🔗 Links

📞 Support

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