save method Null safety

  1. @override
Future<void> save()
override

Implementation

@override
Future<void> save() async {
  if (!super.hasKey('deviceToken')) {
    throw Exception('deviceToken is required.');
  }
  if (!super.hasKey('deviceType')) {
    throw Exception('deviceType is required (ios or android).');
  }
  return super.save();
}