Complete rewrite from Python/FastAPI to Node.js stack:
Features implemented:
- User authentication with JWT tokens and role-based access (DEVELOPER/BUYER)
- Blockchain wallet linking and management with Ethereum integration
- Carbon project creation and management for developers
- Marketplace for browsing and purchasing carbon offsets
- Transaction tracking with blockchain integration
- Comprehensive input validation with Joi
- Advanced security with Helmet, CORS, and rate limiting
- Error handling and logging middleware
- Health check endpoint with service monitoring
Technical stack:
- Node.js with Express.js and TypeScript
- Prisma ORM with SQLite database
- Web3.js and Ethers.js for blockchain integration
- JWT authentication with bcrypt password hashing
- Comprehensive validation and security middleware
- Production-ready error handling and logging
Database schema:
- Users with wallet linking capabilities
- Carbon projects with verification status
- Carbon offsets with blockchain token tracking
- Transactions with confirmation details
Environment variables required:
- JWT_SECRET (required)
- DATABASE_URL (optional, defaults to SQLite)
- BLOCKCHAIN_RPC_URL (optional, defaults to localhost)
- NODE_ENV, PORT, CORS_ORIGIN (optional)
Run with: npm install && npm run db:generate && npm run db:migrate && npm run dev
