Asynchronous HTTP Client for Java

Question

As a relative newbie in the Java world, I am finding many things frustratingly obtuse to accomplish that are relatively trivial in many other frameworks. A primary example i

Answer 1

there are libraries and frameworks written on top of NIO/Netty - RxNetty and Vertx which can be helpful to write asynchronous HTTP client

Below is an example code using vertx

public class Client extends AbstractVerticle {

  @Override
  public void start() throws Exception {
    //lambda callback would be called when the response comes back
    vertx.createHttpClient().getNow(8080, "localhost", "/", resp -> {
      System.out.println("Got response " + resp.statusCode());
      resp.bodyHandler(body -> {
        System.out.println("Got data " + body.toString("ISO-8859-1"));
      });
    });
   //this code statement will execute before response comes back
   System.out.println("I am not blocked");
  }
}

you can find the full blown example code from here