title: Spotify API does not create private playlists
body: <p>I am developing an Android app that creates Spotify playlists. When I create a playlist via the</p>
  
  <pre><code>https://api.spotify.com/v1/users/{user_id}/playlists
  </code></pre>
  
  <p>endpoint, it is always public and the API seems to ignore the request body parameter ('public' of type Boolean) which should make the playlist private. However, it works well with the other parameters. I am using <a href="https://github.com/kaaes/spotify-web-api-android" rel="nofollow noreferrer">kaaes's API wrapper</a> but I do not think it causes the problem.</p>
  
  <p>My app's API scopes:</p>
  
  <pre><code>"playlist-read-private", "playlist-modify-public", "playlist-modify-private"
  </code></pre>
  
  <p>Java code for creating the playlist:</p>
  
  <pre><code>// API wrapper specific code
  // Generic type Object is mandatory for the wrapper to work
  Map&lt;String, Object&gt; params = new HashMap&lt;&gt;();
  params.put("name", mPlaylistTitle);
  params.put("public", false);
  params.put("collaborative", false);
  params.put("description", mPlaylistDescription);
  
  Playlist newPlaylist = service.createPlaylist(user, params);
  </code></pre>
  
  <p>Any ideas what I might be doing wrong?</p>