appInitFirebase function

Future<FirebaseApp> appInitFirebase(FirebaseOptions options)

Implementation

Future<FirebaseApp> appInitFirebase(
  FirebaseOptions options,
) async {
  // Guard against a gate-retry re-run: `Firebase.initializeApp` throws
  // `[core/duplicate-app]` on a second unconditional call. If the default app
  // already exists, reuse it directly; otherwise initialize (Issue 17 /
  // idempotency). The `duplicate-app` catch is a belt-and-suspenders fallback
  // for the case where the platform layer has the default app registered while
  // the Dart-side `Firebase.apps` cache is momentarily empty.
  FirebaseApp fbApp;
  if (Firebase.apps.isNotEmpty) {
    fbApp = Firebase.app();
  } else {
    try {
      fbApp = await Firebase.initializeApp(
        // options: DefaultFirebaseOptions.currentPlatform,
        options: options,
      );
    } on FirebaseException catch (e) {
      if (e.code.contains('duplicate-app')) {
        fbApp = Firebase.app();
      } else {
        rethrow;
      }
    }
  }

  // Mark Firebase as initialized and store the app reference for the rest of the package
  AppConfigBase.isFirebaseInitialized = true;
  AppConfigBase.firebaseApp = fbApp;

  return fbApp;
}