ibole-microservice-example

An example of applying ibole-microservice library.

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Overview

• Service Provider

  microservice-example-server

• Service Consumer

  microservice-example-client

• Common stuffing(Stub, Request, Response...) shares for server and client side

  microservice-example-common

Project Dependency

Architecture

Code Snippet with Explanations

Server

GreeterServiceImpl:

@ServiceExporter - Marks the annotated class to be registered as the implementation bean as part of service definition of micro-service.

@Service
@ServiceExporter
public class GreeterServiceImpl extends GreeterImplBase {
  ...
}

Client

GreeterClientController:

@Reference - Discover the expected service from registry center and return instantiated client stub with the specific custom options.

@Controller
public class GreeterClientController{

  @Reference(timeout = 3000, preferredZone="myzone", usedTls=true)
  private GreeterBlockingStub blockingStub;
    ...  
  }
}

Run the Example

• Prerequisite

  Java version: 1.8+

  Maven: 3.3.9 (Install and configure)

• Generate server/client stub for IDL 'helloworld.proto'

    cd ~/microservice-example-common  
    mvn compile  

• Run server application

    cd ~/microservice-example-server  
    mvn clean package
    java -jar target/microservice-example-server-1.0.1.jar  

• Run client web application

    cd ~/microservice-example-client  
    mvn jetty:run

Open the URL to run the greet example: http://localhost:8080/microservice-example-client/greet