megaease / easemesh-demo-spring-boot

A pure spring-boot application (without eureka/consul/nacos) dedicated to demonstrating how to use the EaseMesh for doing governance of services

Introduction

The codebase is dedicated to demonstrating how to use the EaseMesh to governance of services All services in the repository are written in Java Language with the pure spring-boot framework. It's not required to introduce any service registry client library such as the Consul, Eureka, and Nacos.

The topology of services are illustrated as below:

We have three services which are front-service, middle-service, backend-service, each service has a expose a function via Restful API. All APIs have the same signature:

GET /greeting

When a request is sent to the front-service, the service will forward the request to the middle-service, the middle-service will forward to the backend-service, at last, the backend-service return a string with contents of greeting from backend to middle-service, middle-service appends greeting from middle service, and to the response and return to front-service, front-service appends greeting from the front, and to the response and returns to the client.

The front-service leverages the FeignClient call the middle-service, the middle-service leverages the RestTemplate to call backend-service. URLs of the FeignClient and the RestTemplate are configured in application.yml, it will inject to FeignClient annotation via @Value annotation.

Get Started

After the EaseMesh is install.