I'm publishing my game soon on the instant game platform of facebook but I'm still stuck with how to get users' info when the game loads, I've looked around and found that there is some function in the index.html file that already calls FBInstant and retrieves the user information such as name and email.

is there a way to retrive these data or should I define another function in index.html then calls in from the events ? I have no prior experience with anything related to html and web stuff so I'm clueless on how to solve this issue.

usually when an app wants to get the user' info, the "facebook login" product must be added in the app console in the facebook developers, but when I tried to add the "instant game" product my app I couldn't, I looked around and I found that I can't add both the "facebook login" and "instant game" products in the same app,

How can I get user's info in an instant game app without using the "facebook login product ?

I need the login product because I'm using firebase and I need to store the user data in the firebase database.

Pretty much a beginner here and I wanted to make something like the wheel of fortune game, I messed around for a little bit, made the object rotate for a couple seconds when the 'Spin' button is pressed and added acceleration and speed to the object, but I couldn't figure out how to make the object easeOut when it's going to stop.

any help/tips is really appreciated!