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When an user remove my app from Facebook interface, I want to delete this user from my mysql database. How is possible to do that? (functions or method)
I see something at App Settings->Deauthorize Callback, when user remove app, Facebook server will send data to this page and should make a script that automatically remove that uid from my database?
You are 100% correct – your Deauthorize Callback URL will be sent a
signed_requestthat you can decode to retrieve the information you need on the user that removed your application.