Spotify Apps API: Library-class won't return users Playlists

Question

I\'m trying to get an array containing all Playlists in the users Library (http://developer.spotify.com/download/spotify-apps-api/reference/dcdebc652c.html).

No prob

Answer 1

I'm thinking it's a bug with the API.

sp = getSpotifyAPI(1);
models = sp.require('sp://import/scripts/api/models')
models.library.playlists;

> TypeError: Cannot read property 'length' of undefined

try { models.library.playlists } catch(err) { console.log(err.stack) }

> TypeError: Cannot read property 'length' of undefined
    at map (sp:216:20)
    at Library. (eval at evalModule (sp:55:46))
    at unknown source
    at Object._evaluateOn (unknown source)
    at Object._evaluateAndWrap (unknown source)
    at Object.evaluate (unknown source)

Digging in the models.js file we see that Library uses sp.core.library.getPlaylists() to get the playlists, which should return an Array but returns undefined:

sp.core.library.getPlaylists()

> undefined

sp.core.library.getPlaylists

> function getPlaylists() { [native code] }

Since sp.core.library.getPlaylists is native code I am unable to go deeper down the rabbit hole to see what it is doing. So unless the spotify devs say it is the desired behaviour my conclusion is that it is a bug.