i use this code to authorize me with my app
i get the access token and i use this to do the Impersonation trick
lastly i use this to post to my page … not the app page but a page i have created
https://graph.facebook.com/mypageid/feed?access_token=1234|asdasdasdasd&message=hello%20world&method=post
the post is successful but it is shown as i have posted it . i want the profile picture of the group to be shown next to the post is this possible? instead mine is shown next to the post!
What you are looking for is called
impersonationin facebook graph api terminology.Check here
And, also here