Exposing REST + JSON endpoint using WEF

I wanted to figure out how to create a REST + JSON end point using WEF. So i decided to create a simple Java class that has sayHello(name) method, this method takes name as input and when you invoke it it returns Hello name as output These are the steps that i followed

• I did create a HelloWorldService.java class like this

  
  package com.webspherenotes.wef;
  
  public class HelloWorldService {
  
    public String sayHello(String name){
      System.out.println("Inside HelloWorldService.sayHello() Name = " + name);
      return "Hello " + name;
    }
  }
  
  

• Next i did create one empty model and i did name it HelloWorldServiceProvider.model
• THen in the HelloWorldServiceProvider.model i did add one Linked Java Object that points to HelloWorldService class like this
  
• Define HelloWorldService using Service Definition builder like this
  
• Now define sayHello() operation in the HelloWorldService using Service Operation builder like this
  
• With this we have a Service Provider model, Now we need to consumer it and expose it as REST Service, For that create another empty model called HelloWorldRESTService.model
• Add Service Consumer builder in the HelloWorldServiceConsumer.model like this
  
• Add a REST Service Enable builder in this model and expose it as JSON like this
  
• Now your application is ready so publish it on server

Next right click on the HelloWorldRESTService.model and run it as active model, you should get a web page like this

The HelloWorldService has only one operation sayHello so you get only one method listed here, select that method, you should get a page that lets you invoke the service

On this page enter a name and click on invoke service button and you should get JSON result like this