I am developing an android app using Firebase. Can Firebase send push notifications automatically when a record inserted to a table or I must implement my own server.
Firebase Cloud Messaging (FCM) provides a reliable and battery-efficient connection between your server and devices that allows you to deliver and receive messages and notifications on iOS, Android, and the web at no cost.
Go to the app build gradle file, in the dependencies section, add the Firebase Cloud Messaging dependency and Sync the project. Once the process is finished create a new class call PushNotification Service and have it extend the FirebaseMessagingService class.
For sending FCM notification payload you can use Firebase Cloud Messaging Tool in firebase console. And click on Send your first message. Then enter the Title and body field. If you wish to send it to a particular device then click on Send test message and enter the FCM registration token.
Since the 9th of march 2017 Firebase introduced “Firebase Functions”.It helps to trigger some events on specific dataset changes.These events could be then available in the Firebase Notifications Console to trigger the push Notification.
Take a look at https://firebase.googleblog.com/2017/03/introducing-cloud-functions-for-firebase.html
Firebase provides push notification but not on database table changes. What you can do, you can create listeners in a background service and fire a notification from those listeners.
For instance, for listening to changes in 'User' node.
FirebaseDatabase myFirebaseRef = FirebaseDatabase.getInstance();
DatabaseReference myRef = myFirebaseRef.getReference("User");
ValueEventListener valueEventListener = new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
//put your notification code here
}
}
@Override
public void onCancelled(DatabaseError databaseError) {
Log.i("FirebaseError", databaseError.getMessage());
}
};
myRef.addValueEventListener(valueEventListener);
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With