Java Spring Boot Microservices: Build Airline Booking System

Build a Real Airline Booking Platform with Java Microservices

This course teaches you how real systems are built.

You’ll create a complete Airline Booking & Reservation Platform using Java Spring Boot Microservices — the same category of architecture used by airline booking systems and travel platforms worldwide.

Instead of small CRUD demos, you’ll design and build a distributed backend system with real business workflows, production-grade architecture, event-driven communication, caching strategies, security, and scalable service interactions.

By the end of this course, you’ll understand not only how to build microservices — but why modern systems are designed this way.

What You’ll Build

You’ll build a complete backend Airline Booking Platform featuring:

1. Flight Search Engine

2. Seat Availability Management

3. Fare Pricing System

4. Booking & Reservation Flow

5. Payment Integration

6. JWT Authentication & Authorization

7. Redis-Based Caching

8. Kafka Event-Driven Communication

9. API Gateway & Service Discovery

10. Notification System

11. Saga-Based Distributed Transactions

12. Dockerized Multi-Service Deployment

This project simulates a mini Global Distribution System (GDS) similar to systems used by airlines and travel companies.

Technologies Covered

Backend

• Java

• Spring Boot

• Spring Cloud

• Spring Security

• Spring Data JPA

• Spring Cloud Gateway

• Netflix Eureka

• OpenFeign

• Resilience4j

• Apache Kafka

• Redis

• MySQL

Security

• JWT Authentication

• Role-Based Access Control

• Token Revocation using Redis

Architecture

• Microservices Architecture

• Database per Service Pattern

• Event-Driven Systems

• Saga Pattern

• API Gateway Pattern

• Distributed Communication

DevOps

• Docker

• Docker Compose

• Google Jib

• Spring Boot Actuator

Integrations

• Razorpay

• Email Notifications

What You’ll Learn

Microservices Architecture

• Design scalable distributed systems

• Split domains into independent services

• Handle inter-service communication

• Implement API Gateway & Service Discovery

Kafka & Event-Driven Systems

• Build asynchronous workflows

• Publish & consume Kafka events

• Implement booking saga flows

• Handle failure recovery with compensation events

Security & Authentication

• Secure APIs using JWT

• Implement role-based access control

• Manage token blacklisting with Redis

Redis Caching

• Multi-layer caching strategies

• Cache invalidation techniques

• Performance optimization

Distributed System Design

• Fault tolerance

• Circuit breakers

• Retry mechanisms

• Service resilience patterns

Real Airline Domain Modeling

• Flights & schedules

• Fare rules

• Seat inventory

• Booking lifecycle

• Passenger management

DevOps & Deployment

• Containerize microservices

• Docker Compose orchestration

• Production-ready deployment workflows

Why This Course Is Different

Most microservices tutorials build simple ecommerce clones or CRUD demos.

This course focuses on:

• - Real-world architecture

• - Domain-driven thinking

• - Event-driven backend systems

• - Production-grade patterns

• - Large-scale project structure

• - Interview-level system design concepts

You won’t just learn frameworks.

You’ll learn how backend engineers think when building scalable systems.

Who This Course Is For

Perfect For:

• Java developers moving beyond CRUD applications

• Spring Boot developers learning microservices

• Backend engineers preparing for interviews

• Students building strong portfolio projects

• Developers interested in Kafka & distributed systems

Prerequisites:

• Basic Java knowledge

• Basic Spring Boot understanding

• REST API fundamentals

• SQL basics

  
  

No prior Kafka or microservices experience required.

Key Features of the Project

Passenger Features

• Flight search

• Booking flow

• Secure payments

• E-ticket generation

• Email confirmations

Airline Admin Features

• Flight scheduling

• Fare management

• Fleet management

• Seat inventory management

System Features

• API Gateway

• Kafka Event Streaming

• JWT Security

• Redis Caching

• Circuit Breakers

• Dockerized Architecture

What Makes This Valuable for Your Career

By the end of this course, you’ll have:

• A production-grade backend project

• Strong system design understanding

• Real microservices experience

• Kafka architecture knowledge

• A standout GitHub portfolio project

• Skills used in product-based companies

This project demonstrates real backend engineering skills that companies look for in Java developers.