protected fun <T> sendAsync(request: HttpRequest, clazz: Class<T>): CompletableFuture<T> {
        return client.sendAsync(request) { _ ->
            HttpResponse.BodySubscribers.mapping(HttpResponse.BodySubscribers.ofString(StandardCharsets.UTF_8)) {
                mapper.readValue(it, clazz)
            }
        }.thenApply { it.body() }
    }

    protected inline fun <reified T> sendAsync(request: HttpRequest): CompletableFuture<T> {
        return client.sendAsync(request) { _ ->
            HttpResponse.BodySubscribers.mapping(HttpResponse.BodySubscribers.ofString(StandardCharsets.UTF_8)) {
                mapper.readValue<T>(it)
            }
        }.thenApply { it.body() }
    }