i'm developing an application for a university exam, using Appengine and Gwt (Google products) and i'd like to implement Facebook this way: - give the ability to a FB user to login to the application through facebook (did this implementing the oAuth2.0 flow, so now i have the user's access token and his permissions) - since the application is for being notified when a professor publishes some material for his course (this is all handled by appengine), i'd like to notify the user when a professor publishes some material, through a wall post or a note from my application in a way that it writes to the user something about the new published material.
I've been looking through EVERY single resource online, and couldn't find an answer: a lot of similar questions but no answers.
Writing the POST is not a problem, and for the moment i'm trying with the api graph explorer. I manage to write on the user's wall/note as if he's writing himself or (if the user likes the application) write all the likers a wall post/note (but the same to everyone).
But i don't find a way to send personalized wall posts/notes to every user in response to some specific material published. FB doesn't allow to do this because is considered spamming?