Overview
Key Features
- RESTful API Design: Clean, well-structured REST endpoints following best practices
- User Authentication: Secure JWT-based authentication with password encryption
- Tour Management: CRUD operations for tours with rich metadata
- Booking System: Complete booking workflow with availability management
- Payment Integration: Secure payment processing integration
- Advanced Filtering: Complex query filtering, sorting, and pagination
- Geospatial Features: Location-based queries using MongoDB geospatial indexes
- Data Validation: Comprehensive input validation and sanitization
- Error Handling: Robust error handling with meaningful error messages
- Security: Protection against common vulnerabilities (XSS, NoSQL injection, etc.)
- Performance: Optimized queries with indexing and aggregation pipelines
Technologies Used
- Runtime: Node.js
- Framework: Express.js
- Database: MongoDB with Mongoose ODM
- Authentication: JWT (JSON Web Tokens)
- Password Hashing: bcrypt
- Validation: Joi or express-validator
- Security: helmet, express-rate-limit, express-mongo-sanitize
- Geospatial: MongoDB geospatial queries
- File Upload: multer for image uploads
- Email: Nodemailer for email notifications
Technical Highlights
- MVC Architecture: Clean separation of concerns with Models, Views (API responses), and Controllers
- Middleware Stack: Custom middleware for authentication, error handling, and request processing
- Database Design: Optimized schema design with proper indexing
- API Versioning: Support for API versioning for backward compatibility
- Documentation: Comprehensive API documentation
- Error Handling: Centralized error handling with custom error classes
- Security Best Practices: Protection against common web vulnerabilities
- Performance Optimization: Query optimization, caching strategies, and efficient data loading
API Endpoints
Authentication
- POST /api/v1/users/signup - User registration
- POST /api/v1/users/login - User login
- POST /api/v1/users/forgotPassword - Password reset request
- PATCH /api/v1/users/resetPassword/:token - Password reset
Tours
- GET /api/v1/tours - Get all tours with filtering, sorting, pagination
- GET /api/v1/tours/:id - Get single tour
- POST /api/v1/tours - Create tour (admin only)
- PATCH /api/v1/tours/:id - Update tour (admin only)
- DELETE /api/v1/tours/:id - Delete tour (admin only)
Bookings
- GET /api/v1/bookings - Get all bookings
- POST /api/v1/bookings - Create booking
- GET /api/v1/bookings/:id - Get single booking
- PATCH /api/v1/bookings/:id - Update booking
- DELETE /api/v1/bookings/:id - Cancel booking
Reviews
- GET /api/v1/reviews - Get all reviews
- POST /api/v1/reviews - Create review
- GET /api/v1/reviews/:id - Get single review
- PATCH /api/v1/reviews/:id - Update review
- DELETE /api/v1/reviews/:id - Delete review
Architecture
- Layered Architecture: Separation of routes, controllers, services, and models
- Middleware Chain: Request processing through authentication, validation, and error handling
- Database Layer: Mongoose models with schema validation
- Business Logic: Service layer for complex business operations
- Error Handling: Global error handler with proper HTTP status codes
- Security Layer: Multiple security middleware for protection
Advanced Features
Geospatial Queries
- Find tours within a certain distance from a location
- Calculate distances between locations
- Location-based tour recommendations
Aggregation Pipeline
- Complex data aggregation for statistics
- Tour ratings calculation
- Revenue and booking analytics
- Monthly tour statistics
Filtering and Sorting
- Filter by price range, difficulty, duration
- Sort by price, ratings, popularity
- Pagination with limit and skip
- Field limiting for optimized responses
Challenges and Solutions
Challenge 1: Complex Query Building
Solution: Implemented query builder pattern that constructs MongoDB queries dynamically based on request parameters. Added support for advanced filtering, sorting, and field selection.
Challenge 2: Geospatial Data
Solution: Used MongoDB geospatial indexes and queries to find tours within specified distances. Implemented efficient distance calculations using geospatial operators.
Challenge 3: Security
Solution: Implemented multiple security layers including helmet for HTTP headers, express-rate-limit for DDoS protection, express-mongo-sanitize for NoSQL injection prevention, and parameter validation.
Challenge 4: Performance
Solution: Implemented database indexing on frequently queried fields, used aggregation pipelines for complex queries, and added pagination to limit response sizes.
Real-World Applications
- E-commerce Backends: Similar structure for product management
- Booking Platforms: Hotels, flights, events booking systems
- Location-Based Services: Apps requiring geospatial queries
- SaaS Platforms: Multi-tenant applications with user management
- Enterprise APIs: Large-scale API development
Outcome
- Proficiency in Node.js and Express.js backend development
- Understanding of RESTful API design principles
- Database design and optimization skills
- Security implementation and best practices
- Authentication and authorization patterns
- Performance optimization techniques
- API documentation and testing