``` class V1 : AbstractVerticle() { override ...

# vertx

[julienviet]

class V1 : AbstractVerticle() {

    override fun start() {
        val server = vertx.createHttpServer(HttpServerOptions(host = "localhost", port = 8080))
        server.requestHandler() { req ->
            req.response().end("Hello World")
        }
        server.listen()
    }
}