I've tried getting
graph.facebook.com/v20.0/1*************3_7*************1/comments, where
1*************3 is a valid user id, and
7*************1 is a valid (and public) post id.

Unfortunately, the Graph API Explorer shows an OAuthException:

{   "error": {     "message": "Unsupported get request. Object with ID '1*************3_7*************1' does not exist, cannot be loaded due to missing permissions, or does not support this operation. Please read the Graph API documentation at https://developers.facebook.com/docs/graph-api",     "type": "GraphMethodException",     "code": 100,     "error_subcode": 33,     "fbtrace_id": "A*********************Z"   } }

How could I get all the comments of a user's public Facebook post?

I'd prefer a Graph API (or other official Meta tool) solution.

But I'm open to other approaches too.

Tag:facebook, web-scraping, facebook-graph-api

Only one comment.

  1. Tamás Bolvári
    One possible solution

    Ask the creator of the post to give permission to your Facebook app. Once your app has the user_posts permission from the post owner, your app will have access to the comments on the user's post too.

    Quote from the Graph API reference A page access token can read all posts posted to or posted by that Page. A page access token with the pages_manage_posts permission and Page Public Content Access Feature are required to read publicly shared Page posts. The person requesting the access token must be an admin of the Page. A user access token can read any post your application created on behalf of that user. A user's post can be read if the owner has granted the user_posts permission. A user access token may read a post that user is tagged in if they have granted the user_posts permission. However, in some cases the post's owner's privacy settings may not allow your application to access it.

    Source of the quote:
    https://developers.facebook.com/docs/graph-api/reference/post/

    Reply

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