FEATURE: Enable implementation of onDeletedMessages()

[laurentperez]

Feature request

• A description of the problem you're trying to solve, including why you think this is a problem

The onDeletedMessages() callback is available at https://firebase.google.com/docs/reference/android/com/google/firebase/messaging/FirebaseMessagingService#onDeletedMessages()

Specifically, for the use case "Too many messages stored on the Firebase Cloud Messaging server. This can occur when the app's servers send a bunch of non-collapsible messages to Firebase Cloud Messaging servers while the device is offline."

• An overview of the suggested solution

Allow implementation of onDeletedMessages() https://github.com/dpa99c/cordova-plugin-firebasex/blob/master/src/android/FirebasePluginMessageReceiver.java to be able do not a custom handling

• Use case: why should this be implemented?

To let the app react to deletedMessages(), and do a custom resync, per Google documentation at https://firebase.google.com/docs/cloud-messaging/android/receive#override-ondeletedmessages

• If the feature changes current behavior, reasons why your solution is better

No changes, but FirebasePluginMessageReceiver may need a default subclassable behaviour for onDeletedMessages, so that clients who already extend it are not required to implement.

• Relevant links, e.g
• see links above

It's a great plugin, being able to react to deletedMessages could be very useful : devices are not always online, and time_to_live pushes may be deleted

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[dpa99c]

Reopening as stalebot incorrectly closed it