title: Facebook authentication on Android + website/server
body: <p>I'm developing on an app for Android where the user is able to login with his Facebook account. Also, i want to store some input of the user in a mysql database. On the server side, i know will check wether the user has logged in with Facebook (in reason of security risks) so that just users which has logged in with Facebook can access the database. How will i manage this? The Facebook authentication is no problem for me, but i don't have a solution to check the login status on my website. Thanks for your help!</p>