🏨 Booking.com Clone - Backend

This project is a backend implementation for a Booking.com clone. It provides APIs to manage hotel reservations, user authentication, reviews, and more. Built with Node.js, TypeScript, and Express, this backend is designed to be robust and scalable.

✨Features

• User Authentication: Secure login and registration using JWT and password hashing with bcryptjs.
• Hotel Management: Manage hotels, rooms, and availability.
• Search and Filters: Comprehensive search functionality with filters for price, rating, location, and more.
• Reservations: Manage hotel reservations, including availability checks and cancellation policies.
• Reviews: Users can leave and view reviews for hotels.
• Email Notifications: Reservation confirmations sent via email using nodemailer.

💻 Tech Stack

• Node.js: Runtime environment for building server-side applications.
• Express.js: Web framework for routing and middleware.
• TypeScript: Strongly typed JavaScript for maintainable and error-free code.
• MySQL: Relational database for storing hotel, user, and reservation data.
• MongoDB: Non-relational database for storing users.
• JWT: JSON Web Token for secure authentication.
• Nodemailer: Email service for sending notifications.
• dotenv: Manage environment variables.

⚡ Installation

Prerequisites

• Node.js (v18 or later)
• MySQL Server
• MongoDB Server

Steps

1. Clone the repository:

   git clone https://github.com/your-username/booking-clone-backend.git
   cd booking-clone-backend```
   

2. Install dependencies: npm install

3. Configure environment variables: Create a .env file in the root directory with the following variables:

   MYSQL_HOST=your-mysql-host
   MYSQL_USER=your-mysql-username
   MYSQL_PASSWORD=your-mysql-password
   MYSQL_DATABASE=your-database-name
   JWT_SECRET=your-secret-key
   EMAIL_USER=your-email
   EMAIL_PASS=your-email-password
   

4. Set up the database:

• Use the provided SQL scripts to initialize the MySQL schema.
• Run the seed scripts to populate sample data:

  npm run seed

5. Start the development server:

   npm run dev

6. Build and run the production server:

   npm run build
   npm start

🌐 API Endpoints

Authentication

• POST /api/auth/register: Register a new user.
• POST /api/auth/login: Login and receive a JWT.

Hotels

• GET /api/hotels: Fetch hotels with filters and pagination.
• POST /api/hotels: Add a new hotel (admin only).
• GET /api/hotels/:id: Get details of a specific hotel.

Rooms

• GET /api/rooms: Fetch available rooms for a hotel.
• POST /api/rooms: Add a new room to a hotel.

Reservations

• POST /api/reservations: Create a reservation.
• GET /api/reservations/:id: Get details of a reservation.

Reviews

• POST /api/reviews: Add a review for a hotel.
• GET /api/reviews/:hotelId: Fetch reviews for a hotel.

Scripts

• npm run dev: Run the server in development mode with nodemon.
• npm run build: Compile the TypeScript code to JavaScript.
• npm start: Start the production server.
• npm run seed: Seed the database with initial data.

📂 Folder Structure

   src/
├── controllers/       # Define the business logic for API endpoints
├── routes/            # Define API routes
├── models/            # Database schemas and models
├── middleware/        # Custom middleware functions
├── utils/             # Utility functions (e.g., email notifications)
├── config/            # Database and environment configurations
└── index.ts           # Entry point of the application 

Future Improvements

• Add real-time availability updates with WebSockets.
• Implement other booking functionlities such as rent a car and book an attraction.