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.

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?

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/