Firebase notification on child added/modified

Question

Is it possible to generate a push notification (if the app is not in the foreground) on firebase db changes? I started coding an android app.

Valentin · Accepted Answer · 2018-04-02T09:57:58.327

14

Firebase provides a tool called Cloud Functions.

With this, you can listen to your Firebase Database and send Notifications without the need for an external server :)

See : https://firebase.google.com/docs/functions/use-cases

edited Apr 02 '18 at 09:57

answered Mar 10 '17 at 02:01

Valentin

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is it needed a blaze plan for accessing Cloud function? @Valentin – Federico Rizzo May 13 '18 at 13:22
Check the Firebase pricing (https://firebase.google.com/pricing). You have 125k calls per month for free. – Valentin May 14 '18 at 06:38
I found out that Cloud Functions are free for all internal call Api, but in Log section of firebase however is showed message for billing. It is only a warning – Federico Rizzo May 14 '18 at 06:39

score 7 · Answer 2 · answered Jun 30 '16 at 11:03

To do it in a simple way, you can use a Service, in this Service you can set a Listener on a ref in your firebase DB when the event is triggered you can create a notify and show it to the user.

This is a very simple tutorial: https://www.simplifiedcoding.net/android-push-notification-tutorial-using-firebase/

score 4 · Answer 3 · edited May 23 '17 at 12:17

4

There certainly is. Just have your Android app write the notification request into the database.

Sending device-to-device notifications is not a supported scenario in Firebase Cloud Messaging (see this answer), so you'll need a server component for that. For an example of how to send a push notification in nodejs, see this answer.

edited May 23 '17 at 12:17

Community

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answered Jun 24 '16 at 23:22

Frank van Puffelen

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Firebase notification on child added/modified

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