Hello SIr,
I want to integrate this site in my social site.
I want to display all my friends list than user select any friends and chat him.

Can you suggest me.
any file that i want to change code and get all friends list

Hi,

I want to display all my friends list than user select any friends and chat him.

If your website displays the list of friends, you can just call a freichat function to open a chat with him
As for integration, opt for Custom driver when installing freichat, it will guide you with the integration.