How to post a COMMENT with FB application profile photo?

It is possible for a 'facebook application' to post a COMMENT on a POST when there is a valid ACCESS_TOKEN. API cal开发者_Go百科l for the same is: /xyz_profile_id/comments/?access_token=...

ACCESS_TOKEN being generated by allowing the "facebook application" to get access to xyz_profile_id. The post done will have default FROM ID as xyz_profile_id showing his/her profile photo along with the comment.

My requirement is this: How to change the FROM ID as appilcation_id so that the profile photo of the application is shown beside the posted comment.

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Can you please provide more information on what you are doing and how you are doing it. Not sure about 'FROM ID as application_id' requirement.

E.g. posting comment to a post:

https://graph.facebook.com/<post_id>/comments?access_token=<token>&method=post&message=hi

will generate a story like this:

How do you want to change this?

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In this case, you will need to authenticate your session with an application access_token, as opposed to a user access_token. Make sure the application has been installed on that particular page you want to update comments on.

Read more: http://developers.facebook.com/docs/authentication/