What data can be obtained about a user who logs in

Question

I'm currently using OpenID to allow users to login to my website using Google as a provider. I'm thinking about allowing users to use Facebook to login as well. When a user logs in with Google OpenID, Google sends the following data to my website about the user:

• Full name
• First name
• Last name
• ID
• Gender
• Language
• Email address

I've done some quick searching, but I can't find a list of attributes that Facebook would provide with an Oauth login. What data does facebook provide by default, and what additional data can you ask for?

Answer 1

Here's the list of what I get when accessing https://graph.facebook.com/me:

• id
• name
• first_name
• last_name
• link
• username
• about
• work
• education
• gender
• email
• timezone
• locale
• verified
• updated_time

If you look at https://developer.facebook.com they have a bunch of tools which let you poke around and test URLs.

Answer 2

Check out the Facebook Graph Explorer tool: https://developers.facebook.com/tools/explorer/

By default, this tool let's you query the Facebook graph with default permissions.

There's a button labelled 'get access token' which gives you the option to generate access tokens for every possible combination of Facebook permissions. You can then query the Graph with any set of permissions and see what data is available.