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When to unregister for apple push notifications?


Asked by Dillon Ho on Nov 29, 2021 FAQ



This method returns a promise that will resolve when the user accepts, rejects, or if the permissions were previously rejected. The promise resolves to the current state of the permission. Unregister for all remote notifications received via Apple Push Notification service.
In addition,
Apple Push Notification service (APNs) must know the address of a user’s device before it can send notifications to that device. This address takes the form of a device token unique to both the device and your app. At launch time, your app communicates with APNs and receives its device token, which you then forward to your provider server.
Next, You are ready to start enhancing the app. There are two steps you take to register for push notifications. First, you must get the user’s permission to show notifications. Then, you can register the device to receive remote (push) notifications.
Accordingly,
Earlier versions of Xcode don’t support push notifications using the simulator. An Apple Developer Program membership to be able to compile the app with the Push Notifications entitlement. Note: Later in the tutorial, you’ll learn how to send push notifications to a real device in Sending to a Real Device.
Also Know,
To use Apple Push Notification Service (APNs), your macOS, iOS, tvOS, and watchOS devices need a persistent connection to Apple's servers over Ethernet, cellular data (if capable), or Wi-Fi. If you use a firewall or private Access Point Name for cellular data, your Apple devices must be able to connect to specific ports on specific hosts: