Скачать или смотреть How to do Firebase authentication for Flutter App?

This video shows the steps to authenticate a Firebase for Flutter App. It further demonstrates the successful connection of Firebase authentication in your flutter app by accessing the values from the Realtime database plugin of Firebase.

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Complete Code and details at:
https://programmerworld.co/flutter-ap...

Main method:

void _incrementCounter() async {
await Firebase.initializeApp(
options: DefaultFirebaseOptions.currentPlatform,
);
FirebaseDatabase database = FirebaseDatabase.instance;
DatabaseReference databaseRef = database.ref('TestNode');
DataSnapshot snapshot = await databaseRef.get();
if (snapshot.exists) {
Map-dynamic, dynamic- data = snapshot.value as Map -dynamic, dynamic-;
// Access data from the snapshot
print(data); // This will print the entire data under the "TestNode" node

setState(() {
_counter = data['Text'];
});

} else {
print('No data available');
}
}