Introduction to Programming

Vert.x basics

The building block in Vert.x world is a class that implements the io.vertx.core.Verticle interface:

package io.vertx.core;public interface Verticle {  Vertx getVertx();  void init(Vertx vertx, Context context);  void start(Future<Void> future) throws Exception;  void stop(Future<Void> future) throws Exception;}

The implementation of the preceding interface is called a verticle. Most of the method names of the preceding interface are self-explanatory. The getVertex() method provides access to the Vertx object—the entry point into the Vert.x Core API that has methods that allow us to build the following functionalities necessary for microservice building:

• Creating DNS clients
• Creating periodic services
• Creating Datagram sockets