Vertx API without awaitResult

App.kt

class App : CoroutineVerticle() {
suspend override fun start() {
  ... // setup
router.post("/ingredientCR").coroutineHandler { ctx -> addIngredientCoroutine(ctx) }
  
          awaitResult<HttpServer> {
            vertx.createHttpServer()
                .requestHandler(router::accept)
                .listen(config.getInteger("http.port", 8080), it)
        }
}

private suspend fun addIngredientCoroutine(ctx: RoutingContext) {
        val ingredientName = ctx.bodyAsJson.getString("name")
        val ingredientQuantity = ctx.bodyAsJson.getInteger("quantity")
        val id = ThreadLocalRandom.current().nextLong()
        val insertResult = ingredientDao.insertIngredient(ingredient = Ingredient(id = id,
                                                                                  name = ingredientName,
                                                                                  quantity = ingredientQuantity))

        yield()

        if (insertResult) {
            val ingredient = ingredientDao.selectIngredient(id)
            yield()
            ctx.response().end(json {
                obj("id" to ingredient.id, "name" to ingredient.name, "quantity" to ingredient.quantity).encode()
            })
        } else {
            ctx.response().setStatusCode(500).end("Failed to insert new ingredient")
        }
    }
}

fun Route.coroutineHandler(fn: suspend (RoutingContext) -> Unit) {
    handler { ctx ->
        launch(ctx.vertx().dispatcher()) {
            try {
                fn(ctx)
            } catch (e: Exception) {
                ctx.fail(e)
            }
        }
    }
}