As far as I was aware, there was no way to prevent, from Notification Service Extension, a remote notification to be displayed to the user.
It seems that from iOS 13.3 this is not the case anymore. You can request to Apple, a Notification Service Entitlement which will allow you, if entitlement is granted, to not display the notification.
You can find the link to the documentation here:
https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_developer_usernotifications_filtering
Since this is not default behaviour, and Apple needs to grant this, I would speculate there are some conditions from Apple to grant this entitlement.
What are these conditions, if exists?
If Apple will grant the entitlement, do I still get that 30 seconds of processing? Let's say in that time I can send a request to some server and based on that response I could create some local notifications.
It seems that from iOS 13.3 this is not the case anymore. You can request to Apple, a Notification Service Entitlement which will allow you, if entitlement is granted, to not display the notification.
You can find the link to the documentation here:
https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_developer_usernotifications_filtering
Since this is not default behaviour, and Apple needs to grant this, I would speculate there are some conditions from Apple to grant this entitlement.
What are these conditions, if exists?
If Apple will grant the entitlement, do I still get that 30 seconds of processing? Let's say in that time I can send a request to some server and based on that response I could create some local notifications.
