Event Driven communication between microservices

A Java microservice applicaton to demonstrate the bidirectional communication between microservices using spring cloud stream

Getting started

Prerequisites

Below are the softwares that needs to be installed as a dependency

Java
Maven
Docker (to build Docker image)

Running the application

1 . Git clone the repo to any machine

2 . Start each of the microservice beginning with eureka-server

cd eureka-server
./mvnw spring-boot:run

3 . Start the rabbitmq and the zipkin containers

docker run -d --hostname my-test-rabbit --name test-rabbit -p 15672:15672 -p 5672:5672 rabbitmq:3-management
docker run -d -p 9411:9411 openzipkin/zipkin

4 . Access the Rabbitmq ui by navigating to

http://localhost:15672

Login using guest/guest as the credentials

4 . Once eureka-server is started and docker images are up and running we can start all other services

cd <microservice-name>
./mvnw spring-boot:run

4 . Now create a new order by navigating to

curl http://localhost:5000/api/order

This will send messages to both account service and product service.
Each of the service process the message and sends a response back to order service.\

Built With

• Maven - Dependency Management

Authors

Rakesh Venkatesh