title: How can I get the count of likes and dislikes of any video on Youtube?
body: <p>I want to create a database of YouTube videos with counts of likes and dislikes clustered on the basis of genres. So I need a data-set of <strong>each and every</strong> video on YouTube. So far the data API supports queries fired only for a single URL. Further I am not sure if Data API supports going through each and every video which seems unfeasible. Is there any way I can get the task done. Should I try to crawl, even tough I am not sure if that is legal?</p>
  
  <p>Also I am using a web based architecture for it.<br>
  Thanks for any help.</p>