How to get Facebook username and avatar?

Question

JavaScript

I have a simple HTML button.
It is necessary that when clicking on it, the script receives the URL address of the Facebook user's square avatar and his name.
Those. I pressed the button. I got a window where FB asks "Whether to allow the application to access your information." I allow. After that, this window disappears and the script receives the address of the picture and the username.
How to implement something similar?

Answer 1

Start from here .