Vertx Coroutine Server failing to hand back post params/body

App.kt

class App : CoroutineVerticle() {
    suspend override fun start() {
        // Build Vert.x Web router
        val router = Router.router(vertx)
        router.post("/ingredient").coroutineHandler { ctx -> addIngredient(ctx) }
        router.get("/").coroutineHandler { ctx -> ctx.response().end("Hello dude") }

        // Start the server
        awaitResult<HttpServer> {
            vertx.createHttpServer()
                .requestHandler(router::accept)
                .listen(config.getInteger("http.port", 8080), it)
        }
    }

    private suspend fun addIngredient(ctx: RoutingContext) {
        println(ctx.bodyAsString)
        ctx.response().end("taco")
    }
}

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