I'm working on an app that provides a set of audio lessons to users. Once user listened to a lesson I want to mark it as completed. The challenge is that I don't get any notifications once the user finished listening to the mp3 file I sent back. The options I see is to explicitly ask the user to say "completed" after the lesson so that I can get a signal that user finished. But it feels awkward.
I'm using Actions SDK. Is there a better way to handle it? Maybe API is going to be expanded to get provide such signals?