Flight Booking System

Description

This is an Airline managemnet and flight booking system based on microservices architecture. It has 4 microservices:

1. Flight Service
2. Booking Service
3. Authentication Service
4. Notification Service

Non Functional Requirements

Non functional Requirements

1. We can expect more flight searching than bookings
2. The system needs to be reliable in terms of booking
3. Expect that we will be having 100k total users.
4. 100k bookings might come up in quarter
5. In one day you might be getting 100 bookings
6. System should make sure that we don?t change the prices where the booking payment is going on.
7. System should be able to auto scale itself atleast for 3x more traffic.

Design

ER Diagram

For Flights DB

For Notification DB

Functionalities

1. Flight Service : CRUD operations on all flight db models
2. Booking Service : Book or cancel a booking
3. Notification Service : Send email notifications to users on booking, cancellation. Run CRON jobs to check for upcoming flights and send notifications.
4. Authentication Service : Signin, Signup, Reverse proxy for Flight Search and Booking Service

Tech Stack

1. NodeJS
2. ExpressJS
3. MySQL
4. Sequelize
5. RabbitMQ
6. NodeMailer
7. JWT