Event Driven Microservice Case Study

Event Driven Microservice Beginner Case Study using Spring Boot & RabbitMQ

Technology Stack

• Java 11
• Spring Boot
• Spring Data JPA
• RabbitMQ
• Lombok
• H2 Database
• Docker (Compose)

Running the Application

  $ docker compose up

Architecture Diagram

Requests

Create Order

POST http://localhost:9091/orders

{
  "userId": 123
}

Get Order By Id

GET http://localhost:9091/orders/:orderId

Update Order

Order Status Types:

• order_create
• order_cancelled
• order_delivered
• order_return

PATCH http://localhost:9091/orders/:orderId?orderStatus=order_delivered

Email Service Example Log

  Notifying user with id = 123 for order status change to order_delivered with order id = 1