getToken

Get the device token with getToken.

The getToken method

The getToken method returns a unique token that identifies the device. This token is sent to the server and used to route notifications to this device. The method is asynchronous, so you await it with await.

final token = await messaging.getToken();
print(token);

APNS and FCM token

On iOS an APNS token is required; on Android the FCM token is used directly. The getToken method returns the appropriate token for the platform. On iOS a token cannot be obtained before notification permission is requested.

await messaging.requestPermission();
final token = await messaging.getToken();

Exercise Get the token and print it

Get the messaging instance, await the token with getToken and print it.

Show example solution

class FirebaseMessaging {
  static final FirebaseMessaging instance = FirebaseMessaging._();
  FirebaseMessaging._();
  Future<String?> getToken() async => 'token123';
}

void main() async {
  final token = await FirebaseMessaging.instance.getToken();
  print(token);
}

Test yourself

What does the getToken method return?
- An int number
- Widget
- Stream<String>
- Future<String?>
Show answer

Future<String?> — getToken is an asynchronous method and returns Future<String?>; the token can be null.

Call getToken

final token = await FirebaseMessaging.instance.____;

Show answer

final token = await FirebaseMessaging.instance.getToken();

getToken parts

getToken

Returns the device token
Future<String?>

Return type
token

Device identifier
APNS

iOS notification service

Next lesson: onMessage

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