CODEWITHSUNDEEP
androidgoogle-cloud-messaging
ranjjose
ranjjose

Reputation: 2148

How to initiate an android GCM token refresh?

As per the the docs,

To protect the client app and app server from potential malicious re-use of registration tokens, you should periodically initiate token refresh from the server. When GCM registration token refresh is initiated from server side, the client app must handle a tokenRefreshed message with the GCM registration client/server handshake.

Are the steps to initiate gcm registration token refresh documented somewhere?

I know about InstanceIDListenerService and onTokenRefresh. Those are for creating a new token and updating it to your app server. But how to do specifically the following bit?

periodically initiate token refresh from the server

Upvotes: 3

Views: 2900

Answers (1)

KGo
KGo

Reputation: 20004

The best way to do this would be to schedule a job on the server that sends a notification with ACTION REFRESH_TOKEN every few months (GCM recommends 6 months). On the client apps, on your message callback, switch on the ACTION and handle the refresh token.

Old answer

Have you seen this page: https://developers.google.com/instance-id/guides/android-implementation#refresh_tokens

The Instance ID service initiates callbacks periodically (for example, every 6 months), requesting that your app refreshes its tokens. It may also initiate callbacks when:

  • There are security issues; for example, SSL or platform issues.
  • Device information is no longer valid; for example, backup and restore.
  • The Instance ID service is otherwise affected.

Upvotes: 4

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