I am planning top use FCM with my react-native iOS / Android App. And I need to let my backend know that the user (or OS) kill the application, i.e that FCM won't be able to activate the application upon receiving a notification. In the FCM documentation it is said that FCM will be shutdown.
I could not find a way to get a graceful AppState (or something else) notification of the impeding shutdown.
Am I missing something?