🎬 Movie Ticket Booking System – Microservices Architecture (Backend Only)

This is a backend-only Movie Ticket Booking System built using Spring Boot Microservices.
There is NO frontend/UI — all interactions happen through REST APIs using Postman or any HTTP client.

The project demonstrates a real microservices architecture using:

• API Gateway
• Eureka Service Registry
• Booking Service
• Payment Service
• Docker & Docker Compose
• Inter-service REST communication
• DTOs, Entities, Service Interfaces, Repositories

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📌 Architecture Overview

  Client (Postman / API Client)
           │
           ▼
    API Gateway (Routing)
           │
 ┌─────────┴──────────┐
 ▼                    ▼
Booking Service → Payment Service
           │
           ▼
    Eureka Service Registry
    
----------------------------------------------------------------------------    

 🧑‍💻 Client → 🚪 API Gateway → 🎟️ Booking Service → 💳 Payment Service  
                       ↓
                📘 Eureka Server

Each microservice runs independently and registers itself in Eureka.
The API Gateway routes all API requests to appropriate microservices.

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🏗 Microservices Included

🔹 1. API Gateway

• Acts as the single entry point for all client requests
• Routes requests to Booking and Payment services
• Built using Spring Cloud Gateway
• Supports simple load balancing

---

🔹 2. Eureka Server (Service Registry)

• All services register dynamically
• Enables discovery of microservices
• Avoids hardcoding service URLs

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🔹 3. Booking Service

Handles:

• Creating a booking
• Validating input
• Communicating with Payment Service
• Returning booking status

Includes:

• IBookingService (interface)
• BookingServiceIMpl (implementation)
• BookingRepository (JPA)
• DTOs, Entities
• Exception handling

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🔹 4. Payment Service

Responsible for:

• Payment initialization
• Payment verification
• Returning payment status

Includes:

• Payment service interface & implementation
• IPaymentRepo
• DTOs, Entities
• Razorpay (optional integration)

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🚀 Technologies Used

Component	Technology
Backend	Spring Boot
Routing	Spring Cloud Gateway
Service Discovery	Eureka Netflix
Build Tool	Maven
Communication	REST APIs
Language	Java
Deployment	Docker, Docker Compose

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🗂 Project Structure

🗂 Project Structure

📂 New folder/
├── 📁 api_gateway/
├── 📁 booking_Service/
├── 📁 movie-services-registry/
├── 📁 payment_sservice/
├── 🐳 docker-compose.yaml
├── 📄 pom.xml
└── 📘 README.md

⚙️ How to Run the Project

This project is backend-only, so everything is tested using Postman / API clients.
You can run the services manually or using Docker Compose.

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▶️ 1️⃣ Start Eureka Server

cd movie-services-registry
mvn spring-boot:run

▶️ 2️⃣ Start API Gateway

cd api_gateway
mvn spring-boot:run

▶️ 3️⃣ Start Booking Service

cd booking_Service
mvn spring-boot:run

▶️ 4️⃣ Start Payment Service

cd payment_sservice
mvn spring-boot:run

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🐳 Run Using Docker (Recommended)

This project includes Dockerfile for each microservice and a docker-compose.yaml to start everything together.

▶️ Start All Services

docker-compose up --build

▶️ Stop All Services

docker-compose down

🧩 Services Started by Docker

Service	Port
🟦 Eureka Server	8761
🟩 API Gateway	8080
🟧 Booking Service	8081
🟥 Payment Service	8082

You can open Eureka Dashboard at:

👉 http://localhost:8761/