APNS Content Available Push not working in iOS 15

Question

APNS Content available push not received in iOS 15 device when app builds with Xcode 13.0,iOS 15 SDK.

Push payload data with content available:1 not working

{"aps":{"content-available":1},"update":"2|1"}

but normal notification message push working

{"aps":{"alert":"welcome"}}

is there any payload or configuration in the header field for the iOS 15 silent push message ?

Answer 1

Yes, there is. According to Apple's Documentation:

The notification’s POST request should contain the apns-push-type header field with a value of background, and the apns-priority field with a value of 5. The APNs server requires the apns-push-type field when sending push notifications to Apple Watch, and recommends it for all platforms.

The header looks like this:

request_headers = {
    'apns-expiration': '0',
    'apns-priority': '5', # must be 5 for silent pushes, otherwise it will not be sent
    'apns-topic':'your_app_bundle_id',
    'authorization': 'bearer your_jwt_token'
    'apns-push-type': 'background' # this field is not required
}