Flight Booking System API DESIGN

This is an API Design of the Flight Booking System which was designed using the MICROSERVICE Architecture.It has 4 microservices

1. Authentication Service
2. Booking Service
3. Flights Search Service
4. Remainder Service

High Level Design Diagram

Tech Stack

Server: Node, Express
DataBase : MySQL,Redis
Message Broker : RabbitMQ
Architechture : Microservice Architechture(Repository Pattern)
Tools : Postman , Sequelize

Features

• It is developed on the Microservice Architecture.
• Implemented JWT Token authentication mechanism for authentication and authorisation of users.
• Implemented API Gateway which authenticates thetoken and also apply Rate Limiting does which basically works as an Reverse Proxy and helps in preventing Dos Attacks.
• Implemented Caching(Cache Aside Pattern) in the Flights Search Serviceusing Redis there by optimizing the response time.
• Implemented CronJobs in Remainder Service which automatically delete the already sent emails to the customers and automatically sends an email to customer.
• Implemented interservice synchronous communication using HTTP(REST)APIs and also asychronous communication using Message Brokers like RabbitMQ.

Services

• Authentication service
  It is used to autheticate the user using the JWT tokens
  Github Repo Link : clickhere

• FlightsSearchService
  It is used to search the flights between two different cities
  Github Repo Link : clickhere

• Booking Service
  It is used to Book the flights .
  Github Repo Link : clickhere

• Remainder Service It is used to send emails to user regarding their flight bookings Github Repo Link : clickhere

• API Gateway
  It is used to route the client requests to their respective microservices also have ratelimiting in the API Gateway.
  Github Repo Link :clickhere