Cloud Messaging (FCM)
0 questions
FCM delivers push notifications: registration tokens, topic subscriptions, the notification-versus-data message split, foreground and background handling, APNs integration on iOS, and the server-side send API. The notification-versus-data distinction decides who actually displays the message, and it is the usual interview trap.
questions
no questions here yet
this part of the tree is still being written
>
0 questions in this topic or below it