Introduction to Programming

The HTTP server as a microservice

As an example, here is a verticle that acts as an HTTP server:

package com.packt.javapath.ch18demo.microservices;import io.vertx.rxjava.core.AbstractVerticle;import io.vertx.rxjava.core.http.HttpServer;public class HttpServer1 extends AbstractVerticle{   private int port;   public HttpServer1(int port) {       this.port = port;   }   public void start() throws Exception {      HttpServer server = vertx.createHttpServer();      server.requestStream().toObservable()         .subscribe(request -> request.response()             .end("Hello from " + Thread.currentThread().getName() +                                          " on port " + port + "!\n\n"));      server.rxListen(port).subscribe();      System.out.println(Thread.currentThread().getName() +                                  " is waiting on port " + port + "...");   }}

In the ...