Is there a way to retrieve an existing notification_key based on a registration id or a notification key name?

Question

Assuming that one has created a device group in Firebase Cloud Messaging, is there a way to retrieve an existing notification_key for a device group after it\'s

Answer 1

There is currently no API to retrieve the Device Groups (notification_keys) associated with a given Registration Token. AFAIK, managing/mapping relationships of Device Groups and its associated registration tokens are the developers responsibility.

For your scenario, I would suggest to temporarily store the notification_key until it is successfully stored in your App Server.

Some possibly helpful posts:

• Firebase Cloud Messaging - Managing Registration Tokens
• Managing FCM device groups