music.listen returns an empty array
问题 I'm working on a Spotify in-app application. I like to know what my friends are listening. I'm currently using music.listen open graph api, but it returns an empty data for most of users. I signed up a new facebook account then signed in Spotify using the new account. I clikced a song then logged out. I then switched back my original account then I get data for the new facebook account (which is friend of my original account) so my guess is that music.listen works for only new users (or