Identifying Facebook Messenger user with UserID from a Facebook Login

Question

I am trying out the new Facebook Messenger Platform and have hit a bit of a problem.

When a user first chats with my Bot, I want to use the sender.id to loo

Answer 1

Yes. You can get details like first name, last name, profile pic url, locale, timezone, gender from an api. Only you have to pass is their recipient id/sender id and acccess_token of your messenger bot.

https://graph.facebook.com/v2.6/USER_ID?fields=first_name,last_name,profile_pic,locale,timezone,gender&access_token=TOKEN