title: How to list Watch Later list in APIv3?
body: <p>Since youtube APIv3 <a href="https://developers.google.com/youtube/v3/revision_history#september-15-2016" rel="nofollow noreferrer">revision on September 15, 2016</a>, the <strong>Watch Later list id</strong> cannot be found in <code>channels.contentDetails.relatedPlaylists.watchLater</code> as it contains fixed string <code>WL</code>.</p>
  
  <p>The revision states:</p>
  
  <blockquote>
    <p>...</p>
    
    <p>The channel resource's contentDetails.relatedPlaylists.watchHistory
    and contentDetails.relatedPlaylists.watchLater properties now contain
    values of HL and WL, respectively, for all channels.</p>
    
    <p>To be clear, these properties are only visible to an authorized user
    retrieving data about the user's own channel. The properties always
    contain the values HL and WL, even for an authorized user retrieving
    data about the user's own channel. Thus, the watch history and <strong>watch
    later playlist IDs cannot be retrieved via the API.</strong></p>
    
    <p>...</p>
  </blockquote>
  
  <p>The last part is pretty intriguing since I can't imagine how to obtain my WL id, hence I can't list the videos I've saved for later.</p>
  
  <p>I checked also <a href="https://www.reddit.com/r/youtube/comments/4xc8rp/youtubes_api_just_deprecated_getting_data_about_a/" rel="nofollow noreferrer">reddit</a> and other SO questions (<a href="https://stackoverflow.com/questions/36239503/youtube-data-api-v3-playlistitems-update-not-working-for-watch-later-playlists">one</a>, <a href="https://stackoverflow.com/questions/15891357/is-there-a-way-to-get-the-watch-later-playlist-using-youtube-api-v3">two</a>, <a href="https://stackoverflow.com/questions/21975200/watch-later-playlist-url-via-youtube-api">three</a>, <a href="https://stackoverflow.com/questions/36239503/youtube-data-api-v3-playlistitems-update-not-working-for-watch-later-playlists">four</a>) but without success. They usually suggest v2 or v3 before the mentioned revision.</p>
  
  <p>The question: How can I obtain ids of my watch later videos?</p>