Sample.java

public class Sample extends AbstractVerticle {

	// Start method
	@Override
	public void start(Future<Void> startFuture) {
		// Create a router object allowing to route HTTP request
		final Router router = Router.router(vertx);

		// Create a new get method listening on /hello resource with a parameter
		router.route(HttpMethod.GET, "/hello/:name").handler(routingContext -> {
			// Retrieving request and response objects
			HttpServerRequest request = routingContext.request();
			HttpServerResponse response = routingContext.response();

			// Get the name parameter
			String name = request.getParam("name");

			// Manage output response
			response.putHeader("Content-Type", "text/plain");
			response.setChunked(true);
			response.write("Hello " + name);
			response.setStatusCode(200);
			response.end();
		});

		// Create an HTTP server listening on port 8080
		vertx.createHttpServer().requestHandler(router::accept).listen(8080, result -> {
			if (result.succeeded()) {
				// If the HTTP server is deployed, we consider the Verticle as
				// correctly deployed
				startFuture.complete();
			} else {
				// If not, we invoke the fail method
				startFuture.fail(result.cause());
			}
		});
	}

	// Stop method
	@Override
	public void stop(Future<Void> stopFuture) throws Exception {
		// Do something
		stopFuture.complete();
	}
}