Discussion on: Laravel as a microservice using GCP PubSub, an alternative to laravel queue.

What is this actually doing? Sending a 409 response to GCP to indicate the task was not consumed? So will GCP immediately push the task again, until the task is completed? Won't this spam your API with GCP requests, or is there a smart delay between attempts?

if ($availableAt > time()) {
     return response()->noContent(409);
}