Modern, secure backend API for the e-commerce website built with Node.js, Express, and MongoDB.

• Express.js server with comprehensive middleware setup
• MongoDB database with Mongoose ODM
• JWT Authentication with refresh tokens
• Security middleware (Helmet, CORS, Rate limiting)
• Error handling with custom error middleware
• Validation using express-validator
• Logging with Morgan
• Compression for optimized responses
• Environment-based configuration

1. Install dependencies:

   npm install

2. Environment variables: Copy .env.example to .env and configure your settings:

   cp .env.example .env

3. Start MongoDB: Make sure MongoDB is running on your system or update MONGODB_URI in .env

4. Test database connection:

   npm run test:db

5. Start development server:

   npm run dev

• npm start - Start production server
• npm run dev - Start development server with nodemon
• npm test - Run tests
• npm run test:watch - Run tests in watch mode
• npm run test:db - Test database connection
• npm run lint - Run ESLint
• npm run lint:fix - Fix ESLint issues

• GET /health - Server health status

• GET /api - API information and status

src/
├── config/          # Configuration files
│   ├── config.js    # App configuration
│   └── database.js  # Database connection
├── controllers/     # Route controllers
├── middleware/      # Custom middleware
│   ├── auth.js      # Authentication middleware
│   ├── errorHandler.js # Error handling
│   └── validation.js   # Validation middleware
├── models/          # Mongoose models
├── routes/          # API routes
├── services/        # Business logic services
├── utils/           # Utility functions
│   ├── asyncHandler.js # Async error handling
│   ├── response.js     # Response utilities
│   └── testConnection.js # DB connection test
└── index.js         # Server entry point

See .env.example for all required environment variables.

• Helmet - Security headers
• CORS - Cross-origin resource sharing
• Rate limiting - Prevent abuse
• JWT - Secure authentication
• Input validation - Prevent malicious input
• Error handling - Secure error responses

1. Implement data models (Product, User, Order, Category)
2. Create authentication system
3. Build API endpoints for products, users, orders
4. Add payment processing integration
5. Implement caching with Redis