Frontend Callback feature is released on May 14, 2022.
Introduction
You can now receive the survey response data in the code as soon as a response is given by the user. This allows you to save the response data locally, or log it to other analytics tools in realtime
For Sample code check below links
Frontend Callback (Web)Frontend Callback (iOS)Frontend Callback (Android)Frontend Callback (React Native)Frontend Callback (Flutter)