How to add Facebook authentication and friends location without showing the user a browser?

Question

I am working on a multi-platform game (PC / iOS / Android) and have studied using Facebook as a method of logging in and finding friends. I know that Battle.net does this without having to display a browser window and ask the user for permission, and it asks for your email address and password.

Is there a known API for this, or has Blizzard worked out something with Facebook to do this, or are they using some kind of back-end service to add these rights backstage?

Answer 1

Based on this post , Blizzard developed a special deal with Facebook to enable this functionality. Couple that with this post from facebook which says

This cannot be done for security reasons. Either you can wait for Facebook Connect for Mobile / Iphone, or use browser-based authentication as it exists.

it looks like you're out of luck.