title: Youtube API - Subscribing to Push Notifications
body: <p>My final goal is to set up a Webhook whenever a YouTube user uploads a video. After some research I got to <a href="https://developers.google.com/youtube/v3/guides/push_notifications" rel="noreferrer">this article</a>. </p>
  
  <p>But when I get to the part <code>https://www.youtube.com/xml/feeds/videos.xml?channel_id=CHANNEL_ID</code>, I got <code>Restricted topic</code> error when trying the subscribe to the Google/SuperFeedr hubs. I also got my callback URL working.</p>
  
  <p>The topic I want to subscribe to is this: <code>https://www.youtube.com/xml/feeds/videos.xml?channel_id=UC7T8roVtC_3afWKTOGtLlBA</code></p>
  
  <p>Which shows nothing upon visiting via a browser.</p>
  
  <p>Am I doing something wrong? I've been struggling for a few hours now, any help is appreciated. Thanks!</p>
  
  <p><strong>UPDATE</strong>: I found <a href="http://www.reddit.com/r/youtube/comments/339idg/youtube_just_dropped_its_support_for_rssatom_feeds/" rel="noreferrer">this</a>, but those feeds doesn't have the <code>rel=”hub”</code> attribute, so probably useless if I want to subscribe it to hub.</p>