Delay Google Cloud Function

Question

I have a swift iPhone application paired with Google Firebase. Within the application the user will complete an action (press a button). At this point, I would like to schedule

Answer 1

Would a delayed Cloud Task work for you?

You can create a Cloud Task that is delayed and calls your function through an HTTP trigger. The task can be then cancelled if your user performs the second action you desribe. There is a number of dedicated client libraries for Cloud Tasks, as well as a REST API.