Update on weld-vertx

2016-6-21   vertx , integration   Martin Kouba

This is a follow-up on the article Weld meets Vert.x. Weld team has just released the first alpha version of weld-vertx (artifacts are available in Maven Central). Since the last time we talked about weld-vertx two new features were added. First, it’s possible to inject the relevant io.vertx.core.Vertx and io.vertx.core.Context instances direcly into beans. Also there is a new module called weld-vertx-web which extends functionality of weld-vertx-core and io.vertx:vertx-web and allows to register Route handlers discovered during container initialization. In other words, it’s possible to configure a Route in a declarative way:

import javax.inject.Inject;

import org.jboss.weld.vertx.web.WebRoute;

import io.vertx.core.Handler;
import io.vertx.ext.web.RoutingContext;

// This annotation is used to configure a Route
public class HelloHandler implements Handler<RoutingContext> {

    SayHelloService service;

    public void handle(RoutingContext ctx) {


The registered handler instances are NOT real bean instances, i.e. they’re not managed by the CDI container (similarly as Java EE components). However, the dependency injection is supported.

The central point of integration is the org.jboss.weld.vertx.web.WeldWebVerticle. This Verticle extends org.jboss.weld.vertx.WeldVerticle and provides the WeldWebVerticle.registerRoutes(Router) method:

 class MyApp {

     public static void main(String[] args) {
         final Vertx vertx = Vertx.vertx();
         final WeldWebVerticle weldVerticle = new WeldWebVerticle();

         vertx.deployVerticle(weldVerticle, result -> {

             if (result.succeeded()) {
                 // Configure the router after Weld bootstrap finished
                 Router router = Router.router(vertx);

Give it a try and let us know if you have any idea how to extend the functionality of weld-vertx. Any feedback is appreciated!