# Register a device

To register a new device you'll need to have a Firebase token, which you can obtain one from your `FirebaseMessagingService` method `onNewToken`:

```java
@Override
public void onNewToken(String token) {
}
```

Then is the best practice to register your device calling the registration API:

```java
@Override
public void onNewToken(String token) {
    MBurgerPushTasks.sendToken(getApplicationContext(), 
            listener, //OPTIONAL LISTENER FOR TOKEN SENDING AND ERROR MANAGING
            getDeviceID(), token);
}
```

Where `getDeviceID()` is your method to obtain the **Android ID** which will be your unique identifier. Pay attention to the changes Oreo makes to this data, refer to [this documentation](https://developer.android.com/reference/android/provider/Settings.Secure#ANDROID_ID). Now your device is ready to receive push messages with your `FirebaseMessagingService` method `onMessageReceived`, but if you need to differentiate push groups you may need to use **topics**.