How to automatically delete push notifications from iOS notification centre at a specific time?

Question

I am developing an iOS app using Swift which has push notification feature. The app sends Birthday reminders notifications to the users via push notifications (APNS used her

Answer 1

In case anyone else ends up here looking for a way to clear notifications without sending a background push, I spent a few hours attempting to replicate the accepted answer, specifically:

you can delete that notification from the device's notification center by sending another request to APNS by Passing the apns-id value in the request header.

And it did not work for me at all. As far as I can tell the only way to remove notifications is via a content-available background push. Though I would love to be proven wrong!