[[oktatas:programozás:java:java_rest_api_kliens|< Java REST API kliens]]

====== Java REST API kliens - resclient ======

  * **Szerző:** Sallai András
  * Copyright (c) 2024, Sallai András
  * Szerkesztve: 2024
  * Licenc: [[https://creativecommons.org/licenses/by-sa/4.0/|CC BY-SA 4.0]]
  * Web: https://szit.hu

===== Maven =====

<code xml pom.xml>
<dependency>
    <groupId>hu.szit</groupId>
    <artifactId>resclient</artifactId>
    <version>1.3.2</version>
</dependency>
</code>

Ha moduláris alkalmazást készítünk, a module-info.java fájlba:

<code java module-info.java>
module valami {
    requires hu.szit.resclient;
    opens com.example to hu.szit.resclient;
}
</code>

GitHub weblap:
  * https://github.com/andteki/resclient
===== CRUD műveletek aszinkron módban =====

<code java UseResclient.java>
import hu.szit.ResClientAsync;

public class UseResclient {
  
  public static void get() {
    String url = "https://jsonplaceholder.typicode.com/users";
    ResClientAsync client = new ResClientAsync();
    String res = client.get(url).join();
    System.out.println(res);
  }

  public static void post() {
    String url = "https://jsonplaceholder.typicode.com/users";
    ResClientAsync client = new ResClientAsync();
    String body = "{\"name\":\"John\", \"age\":30, \"city\":\"New York\"}";
    String res = client.post(url, body).join();
    System.out.println(res);
  }

  public static void put() {
    String url = "https://jsonplaceholder.typicode.com/users/1";
    ResClientAsync client = new ResClientAsync();
    String body = "{\"name\":\"John\", \"age\":30, \"city\":\"New York\"}";
    String res = client.put(url, body).join();
    System.out.println(res);
  }

  public static void delete() {
    String url = "https://jsonplaceholder.typicode.com/users/1";
    ResClientAsync client = new ResClientAsync();
    String res = client.delete(url).join();
    System.out.println(res);
  }
}

</code>

===== CRUD műveletek szinkron módban =====

<code java UseResclient.java>
import hu.szit.ResClient;

public class UseResclient {
  public static void get() {
    String url = "https://jsonplaceholder.typicode.com/users";
    ResClient client = new ResClient();
    String res = client.get(url);
    System.out.println(res);
  }

  public static void post() {
    String url = "https://jsonplaceholder.typicode.com/users";
    ResClient client = new ResClient();
    String body = "{ \"name\": \"John\", \"age\": 30 }";
    String res = client.post(url, body);
    System.out.println(res);
  }

  public static void put() {
    String url = "https://jsonplaceholder.typicode.com/users/1";
    ResClient client = new ResClient();
    String body = "{ \"name\": \"John\", \"age\": 30 }";
    String res = client.put(url, body);
    System.out.println(res);
  }

  public static void delete() {
    String url = "https://jsonplaceholder.typicode.com/users/1";
    ResClient client = new ResClient();
    String res = client.delete(url);
    System.out.println(res);
  }
}

</code>