Where to add Firebase.initializeApp in flutter?

Question

Error : no firebase app has been created call firebase.initializeapp My Question : Where should i need to add firebase initialization

A stateless widget with firestore reference 'users'

class FeedBack extends StatelessWidget {
  CollectionReference users = FirebaseFirestore.instance.collection('users');
  late String txtnote;
  late String note;
  @override
  Widget build(BuildContext context) {
    return Scaffold(

onpress integration for writing data to firestore

child: ElevatedButton(
                    onPressed: () async {
                      await users.add({
                        'subject': note,
                        'email': 'example@gmail.com',
                        'description': txtnote
                      }).then((value) => print('Data Added Successfully!'));
                    },
                    child: Text(
                      'Submit',
                      style: TextStyle(color: Colors.white),
                    ),

Note : This dart file 'feedback.dart' does not contain void main function its a stateless widget

Does this answer your question? [No Firebase App '\[DEFAULT\]' has been created - call Firebase.initializeApp() in Flutter and Firebase](https://stackoverflow.com/questions/63492211/no-firebase-app-default-has-been-created-call-firebase-initializeapp-in) — Ivo, Sep 21 '21 at 17:25

score 6 · Answer 1 · edited Nov 26 '22 at 12:44

6

You can call inside the main entry point of your app:

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  runApp(MyApp());
}

edited Nov 26 '22 at 12:44

Stephen Ostermiller

23,933
14
88
109

answered Sep 21 '21 at 17:30

Marcos Rodriguez

61
3

As it’s currently written, your answer is unclear. Please [edit] to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers [in the help center](/help/how-to-ask). – Community Sep 21 '21 at 17:58

score 2 · Answer 2 · answered Sep 21 '21 at 17:42

2

As a default, this should go in the main.dart file

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  runApp(MyApp());
}

answered Sep 21 '21 at 17:42

adamcapjones

185
1
17

As it’s currently written, your answer is unclear. Please [edit] to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers [in the help center](/help/how-to-ask). – Community Sep 21 '21 at 17:58

Where to add Firebase.initializeApp in flutter?

2 Answers2