There doesn't seem to be any official documentation on Tumblr or Facebook as to how to add a Facebook like button within posts.
The only documentation I see is
- http://www.tumblr.com/docs/en/custom_themes
- https://developers.facebook.com/docs/reference/plugins/like/
Using the second link I can place in an individual post but based on the first link, I can only customize everything in one so I would need to get this HTML5 version
<div class="fb-like" data-href="http://myusername.tumblr.com/post/1234567" data-send="true" data-width="450" data-show-faces="true"></div>
(because Tumblr uses <!DOCTYPE html>
)
Done dynamically for each post.
Also for the Open Graph tags Tumblr seems to be automatically inserting from server side their own meta tags. So which tags should I be adding from?
Would someone care to explain in detail a fool-proof solution for canonical purposes?