How to subscribe to multiple topics in FCM?

Question

I'm newly learning android studio, so however I have one doubt in developing a android app that:
How can we subscribe to multiple topics in FCM?

Here is my code

public void subscribeToPushService() {
        FirebaseMessaging.getInstance().subscribeToTopic("News");

        Log.d("myname", "Subscribed");
        // Toast.makeText(Simple.this, "Subscribed", Toast.LENGTH_SHORT).show();

        String token = FirebaseInstanceId.getInstance().getToken();

        // Log and toast
        Log.d("myname", token);
        // Toast.makeText(Simple.this, token, Toast.LENGTH_SHORT).show();
    }

you can see in the above code I have already subscribed to one topic "News" so

how can I subscribe to multiple topics instead of one?
Is it possible, if yes how can we do that?

Kanaiya Katarmal · Accepted Answer · 2019-02-11T12:29:15.480

14

Yes,find below sample code for subscribe multiple topics

public void subscribeToPushService() {
        FirebaseMessaging.getInstance().subscribeToTopic("News");
        FirebaseMessaging.getInstance().subscribeToTopic("Movies");
        FirebaseMessaging.getInstance().subscribeToTopic("etc");
}

For unsubscribe topic

FirebaseMessaging.getInstance().unsubscribeFromTopic("Topic name");

edited Feb 11 '19 at 12:29

answered Apr 18 '17 at 06:03

Kanaiya Katarmal

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5

Isn't there a way to do it in one request ? I know you can subscribe multiple people into a topic! – M at Dec 11 '19 at 13:54
2

@Mat No. For mobile SDK this is the only way to do this. – Surjeet Rajput Jun 30 '21 at 04:27

How to subscribe to multiple topics in FCM?

1 Answers1