Flutter: Benefit of passing DefaultFirebaseOptions.currentPlatform to Firebase.initializeApp()?

Question

The following snippet is shown in some Firebase Flutter examples.

await Firebase.initializeApp(
  options: DefaultFirebaseOptions.currentPlatform,
);

• https://firebase.google.com/docs/flutter/setup
• https://pub.dev/packages/firebase_core/example

What is the benefit of passing DefaultFirebaseOptions.currentPlatform to Firebase.initializeApp()?

The options parameter is nullable (optional).

I wonder if passing something called "Default..." to an optional parameter might not make a difference.

Answer 1

• If you don't pass any options to Firebase.initializeApp the SDK will be initialized with the information from the GoogleService-Info.plist (iOS), GoogleServices.json (Android) or the JavaScript snippet (web).

• If you pass a value for options (typically read from FirebaseOptions.dart), the SDK will be initialized with that.

• If the files and the Dart code have the same values (as is typically the case when you use the flutterfire CLI to manage things), there is no real different - but passing the options will give you better debug info.