wip

Author: hsubox76

packages/auth/src/core/auth/auth_impl.ts

@@ -78,6 +78,7 @@ export class AuthImpl implements AuthInternal, _FirebaseService {
   private redirectPersistenceManager?: PersistenceUserManager;
   private authStateSubscription = new Subscription<User>(this);
   private idTokenSubscription = new Subscription<User>(this);
+  private beforeStateSubscription = new Subscription<User>(this);
   private redirectUser: UserInternal | null = null;
   private isProactiveRefreshEnabled = false;
 
@@ -371,6 +372,17 @@ export class AuthImpl implements AuthInternal, _FirebaseService {
     );
   }
 
+  beforeAuthStateChanged(
+    next: NextFn<User | null>,
+  ): Unsubscribe {
+    return this.registerStateListener(
+      this.beforeStateSubscription,
+      next,
+      error,
+      completed
+    );
+  }
+
   onIdTokenChanged(
     nextOrObserver: NextOrObserver<User>,
     error?: ErrorFn,