Access Users Data In Spotify App

Using the advice in this post I have been able to access the spotify users data for their playlists with sp = getSpotifyApi(1); console.log (sp.core.library.getAlbums());

Solution 1:

This information is not available in the Spotify Apps API for privacy reasons. There is a unique user ID, but it is not the user's username.

If you need the user's friends list, you'll need to connect to (say) Facebook yourself and get it that way.