My question is very simple but there is nothing on google regarding that. When I use facebook if I go to the profile of my friend I can see his posts which he has allowed me to see. So my question is that can I get data on my friends profile? Of Course only the one he has allowed me to see, using facebook graph API.
Facebook has made a lot of changes in its API to reduce abuses. As you can see in 2.3 changelog, the new permission is
user_posts, but it will allow you to see user posts, and not those of his friends. If Facebook disallows it, it's a waste of time to search more...