Monitor Playlist updates with web API?

[thomasa88]

I'm using the web api to provide updates to a chat when songs are added or removed to a specific playlist. Today, I am polling every few minutes to look for any changes in the playlist. Is there any api to get a delta either by polling or by a hook?

I would preferably like to get info on who did the change to the playlist.

[BrokenH]

Not possible anymore, point 8. 
Introducing some changes to our Web API | Spotify for Developers

[LambertSpot]

Hi! There is no publicly available Webhook or WebSocket today, but it is something we are considering.