title: YouTube's Playlists.list API endpoint is returning only one item
body: <p>I'm using the YouTube Data API to fetch playlists from a channel.
  Although the API its just returning one item I have more than 1 video.</p>
  <p>I'm using this command to fetch the lists from the API:</p>
  <p><code>curl 'https://youtube.googleapis.com/youtube/v3/playlists/part=snippet&amp;id=PLnCjPY6asmJHeiIIkpRyTQEMrxHrWtZ7k&amp;maxResults=50&amp;key=[YOUR_API_KEY]' --header 'Accept: application/json' --compressed</code>.</p>
  <p>My playlists are:</p>
  <p><code>https://youtube.com/playlistlist=PLnCjPY6asmJHeiIIkpRyTQEMrxHrWtZ7k</code></p>
  <p>and</p>
  <p><code>https://youtube.com/playlist?list=PLnCjPY6asmJGdMJsGrSO4XRC4HNPGrr2O</code>.</p>