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Airline/GetSetFly - Microservices-based Flight Booking System

Airline/GetSetFly is a backend project developed for managing flight bookings and notifications using a microservices architecture. It consists of several services built with Node.js, Express.js, and MySQL's Sequelize ORM. The project follows best practices for backend development, including role-based authorization, rate-limiting, and message queuing for efficient communication between services.

Services

1. API Gateway

  • Entry point for accessing all other services
  • Implements authentication and role-based authorization
  • Uses Proxy for redirecting requests/API calls to the appropriate service
  • Implements rate-limiting to prevent server overload

2. Flight Service

  • Provides information about flights, airplanes, cities, and airports
  • Supports CRUD operations for flights
  • Implements associations for tables related to flights, airplanes, cities, and airports
  • Allows users to filter flights based on various criteria including price, available seats, departure and arrival airports.
  • Leverages the power of SQL queries to efficiently filter flight data based on the provided criteria. It utilizes Sequelize ORM's query-building capabilities to construct dynamic queries and retrieve relevant flight information from the database.

3. Flight Booking Service

  • Allows authenticated users, admins, and flight companies to book tickets
  • Publishes events to the Message Queue after successful booking
  • Prevents multiple payments from the same user using transactional queries and RabbitMQ's Pub/Sub architecture

4. Flight Notification Service

  • Sends email notifications to customers after successful ticket bookings
  • Acts as a Subscriber to the events published by the Booking Service via message queues

Features

  • Microservices Architecture: Scalable and maintainable architecture with separate services for different functionalities.
  • Authentication and Authorization: Role-based access control for securing resources.
  • Rate Limiting: Prevents server overload by restricting the number of requests per IP address.
  • Message Queues: Efficient communication between services using RabbitMQ's Pub/Sub architecture.
  • Transactional Queries: Prevents concurrency issues during ticket booking by using transactional queries provided by MySQL.
  • Association: Utilizes associations in the database schema to represent relationships between entities.

Getting Started

To run the project locally, follow these steps:

  1. Clone the repository: git clone https://github.com/Mohitsen11/Flights_Booking_Service.git
  2. Install dependencies: npm install
  3. Configure environment variables
  4. Start each service: npm run start

Contributing

Contributions are welcome! If you find any issues or have suggestions for improvements, please feel free to open an issue or submit a pull request.