jaxrs-rest-client-example-with-basic-authentication-codingpedia.java

/**
* In this example we'll GET a codingmark identified by its location callling the following REST resource
*   https://www.codingmarks.org/public/codingmarks?location={myLocation} 
* which is protected with Basic-Authentication
**/

import javax.ws.rs.NotFoundException;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.*;
........

    Client codingmarksApiClient = ClientBuilder.newClient();

    String username="test_user";
    String password="supersecret";
    String usernameAndPassword = username + ":" + password;
    String authorizationHeaderValue = "Basic " + java.util.Base64.getEncoder().encodeToString( usernameAndPassword.getBytes() );

    String myLocation = "https://www.codingpedia.org//ama/jaxrs-rest-client-example-with-basic-authentication"

    Codingmark codingmark  = codingmarksApiClient
            .target("https://www.codingmarks.org/")
            .path("public/codingmarks")
            .queryParam("location", location)
            .request(MediaType.APPLICATION_JSON)
            .header("Authorization", authorizationHeaderValue)
            .get(Codingmark.class);
            
     // Variant which returns a Response Object, which gives fine-grained control of the HTTP Response on the client side
     Response response  = codingmarksApiClient
             .target("https://www.codingmarks.org/")
             .path("public/codingmarks")
             .queryParam("location", location)
             .request(MediaType.APPLICATION_JSON)
             .header("Authorization", authorizationHeaderValue)
             .get();
    try {
       if (response.getStatus() == 200) {
          Codingmark codingmarkFromReponse = response.readEntity(Codingmark.class);
       }
    } finally {
      response.close();
      /**
      * Remember to always close() the Response objects. Response objects reference open socket streams.  
      */
    } 
    
    /**
    * Blog post at
    * http://www.codingpedia.org/ama/jaxrs-rest-client-example-with-basic-authentication
    */
.........