Way to check if user has “Liked” the Facebook Fan Page or Not

Hi, In my recent grails project, i was working on creating Apps for Facebook Fan Page and needed to show data to the user in such a way so that if he/she has "Liked" the page, then the content would be different from the case when the user has not liked it. In simple words, if user is Fan of any Facebook Page, then the content of App...

by Vishal Sahu
Tag: Fan Page