Before Auth State Changed

Use the beforeAuthStateChange method to register a callback function that is called before the authentication state changes in Firebase Authentication.

Method

await FirebaseApp.firebaseAuth?.beforeAuthStateChange(authToken, refreshToken);

Parameters

• authToken (String): The authentication token that triggers the callback before the state change.

• refreshToken (String): The refresh token used to maintain the session.

Return

• void: This method does not return a value.

This method allows developers to execute a callback function before any changes in the authentication state, providing an opportunity to handle or respond to auth state transitions proactively.