WebserverVerticle.java

@Override
public void start() throws Exception {
    super.start();
    router.route("/resources/*").handler(StaticHandler.create("webroot/resources"));
    router.route().handler(FaviconHandler.create("webroot/favicon.ico"));
    PebbleTemplateEngine templateEngine = new PebbleTemplateEngine();
    TemplateHandler templateHandler = TemplateHandler.create(templateEngine, "webroot/templates","text/html");
    router.route("/templates/*").handler(templateHandler);
    router.route().handler(h->h.reroute("/templates/chat_client.html"));
    vertx.createHttpServer().requestHandler(router::accept).listen(8080);
}