PushKit implement pushRegistry(_:didInvalidatePushTokenFor:) and pushRegistry(_:didUpdate:for:)

[PolyakovPavel]

Hello.

Can you help implement PushKit pushRegistry(:didInvalidatePushTokenFor:) and pushRegistry(:didUpdate:for:) delegate in fluttrer ?

[siprix]

It's already implemented by the plugin.

Plz proceed this manual:
https://docs.siprix-voip.com/rst/ioscallkit.html#pushkit-callkit-implementation-details

Also here is usable article related to generation certificate:
https://getstream.io/blog/pushkit-for-calls/

[siprix]

Regarding didInvalidatePushTokenFor - did you mean, that is required to send some event, which would allow app to send fresh registration with updated token?

Plz provide more details about your status of integrating CallKit/PushKit.

[PolyakovPavel]

Regarding didInvalidatePushTokenFor - did you mean, that is required to send some event, which would allow app to send fresh registration with updated token?

Yes, we would like to receive an event when the system invalidates the push token to disable this token on the backend.

pushRegistry(:didUpdate:for:) - We would also like to receive an event if the token was updated by the system to update it on the backend.

We've nearly completed the iOS (fluttrer) integration. We receive a push notification, and based on its data, we register an account on the SIP Server and receive an invite to incomming call.

To manage push tokens on the backend, we'd like to be able to subscribe to these events.

[siprix]

we would like to receive an event when the system invalidates the push token to disable this token on the backend.

Potentially it's possible to add code which triggers event and handle it on the Flutter side.
But not sure is it really required.
From SIP point of view - app can notify server by updating registration and would be good to do that using some fresh token.
Seems better to raise event from 'pushRegistry(_ didUpdate'. This method invoked on each app start (=> app always uses fresh token) and potentially should be also triggered when push token updated.

For test purposes you can modify source code of the plugin on local machine
~/.pub-cache/hosted/pub.dev/siprix_voip_sdk_ios-1.0.32/ios/Classes/SiprixVoipSdkPlugin.swift:1734
by adding log line as shown below:

public func pushRegistry(_ registry: PKPushRegistry, didInvalidatePushTokenFor type: PKPushType) {
  _siprixModule?.writeLog("PushRegistry: didInvalidatePushTokenFor :\(type) ")
...

try to reproduce case when token invalidated and check log file - has it intercepted by the app.

According to this article:
https://stackoverflow.com/questions/46977380/voip-push-under-what-circumstances-does-didinvalidatepushtokenfortype-get-calle
it's very rare case.