Question

I am trying to crawl the comments left on my own website.

With a get request like this: http://graph.facebook.com/comments/?ids=[url]

I have no problem, but If i try to send a post request with the same param facebook replies:

"An access token is required to request this resource"

Someone knows why? And how to obtain such token for something that is already public (comments)?

Answer 1

I’m adding another answer in response to your comment: “I don’t want to publish a comment. I jsut want to read those comments with a post request”. A POST request by default is how you publish new comments. To just view the comments using a POST request you have to tell it to treat it as a GET request by adding method=get to the query string. So POST to:

http://graph.facebook.com/comments/?method=get

And make your post body:

ids=[x],[y],[z]

(Also be aware that this method=get works here because Facebook implemented that as an option. In general, HTTP doesn’t supply that option.)