JAXRS Rest Client

Dec 20, 2017 / Updated on Dec 20, 2017

Option 1 : Using interface proxy

import javax.ws.rs.FormParam; 
import javax.ws.rs.HeaderParam; 
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.core.Response;

import org.apache.cxf.jaxrs.client.JAXRSClientFactory; 
import org.apache.cxf.jaxrs.client.WebClient; 
import org.apache.cxf.transports.http.configuration.HTTPClientPolicy;

public class RestClient
{

   public static void main(String[] args) {
       final MyApiClient client = JAXRSClientFactory.create("<http://localhost:8080/api>", MyApiClient.class);

       final HTTPClientPolicy clientPolicy = WebClient.getConfig(client).getHttpConduit().getClient();
       clientPolicy.setConnectionTimeout(15 * 1000);
       clientPolicy.setReceiveTimeout(15 * 1000);

       final Response response = client.hello("your-authorization-token", "javawiki");
       System.out.println("Response Status: " + response.getStatus());
   }

}

@Path("/testapi") public interface MyApiClient
{

   @PUT
   @Path("/hello")
   Response hello(@HeaderParam("AUTHORIZATION") String authorization, @FormParam("name") String name);

}

Option 2: Direct client

import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.client.Entity;
import javax.ws.rs.core.Form;
import javax.ws.rs.core.Response;

public class RestClient
{

   public static void main(String[] args) {
       final Client client = ClientBuilder.newClient();

       client.property("http.connection.timeout", 15 * 1000); // milliseconds
       client.property("http.receive.timeout", 10 * 1000); // milliseconds

       final WebTarget target = client.target("http://localhost:8080/api/testapi/hello"); 
       final Response response = target.request(MediaType.APPLICATION_JSON_TYPE)
           .header("AUTHORIZATION", authorization)
           .put(Entity.form(new Form().param("name", "yottabrain")));
       System.out.println("Response: " + response.getStatus());

       client.close();
   }

}
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