Spring Boot Microservice Architecture using Eureka

A set of sample applications designed using Spring Boot to demonstrate setting up a microservice architecture and using service discovery to access the different service.

Project Structure

• dataservice - Represents the service that would be connected to your datastore and could have multiple nodes.
• restservice - Represents the client facing REST API server which could have multiple nodes and could be serviced via an Application Gateway
• eureka - Represents the Eureka discovery service server which the other services call to register themselves. This could also be deployed on multiple nodes to handle failover of the Eureka server.

Usage

You can spin up the services by the following command via the command line: mvn spring-boot:run

To spin up multiple dataservice nodes you can use the following command: mvn spring-boot:run -Dspring-boot.run.arguments="--server.port=8082 --data.service.identifier=dataservice-2" You will have to edit the port and service identifier based on how many instances you want to spin up.

You can then access the following urls on the restservice:

• Fetch Instance Information (dataservice can be replaced with any name based on the spring.application.name property) http://localhost:8080/instance/dataservice

• Fetch data (In case you have multiple dataservice nodes running this should return different values based on the data.service.identifier property in the dataservice project) http://localhost:8080/data/name