Get Facebook user's profile picture prior to authenticating app

Question

Summary:

I am working on a website that connects to Facebook through the Graph API. I was asked whether I can get a user's profile picture if they are already logged into Facebook, but prior to the user authenticating the app. Is this possible?

EDIT: I know you can get people's profile picture by going to http://graph.facebook.com/USERNAME_OR_USERID/picture?type=large, but would I be able to get a user's username or ID if they are logged into Facebook, but have not authorized my app?

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Details:

According to the Facebook API User documentation, you can get their Facebook ID without an access_token, and I know if you go directly to a user's /me URL you can see their basic information. With the Facebook ID, I can grab their profile pic.

However, when I try to call it from the website using the following code, I get an OAuthException error.

FB.api('/me', function(response) {
    console.log(response);
});

I'm guessing that they have to authenticate the app, but I'm looking to see if I may have missed a way of getting their profile pic.

Thanks for your help!

Solution 1

You can get everyone's Facebook profile picture without authentication.

You just call http://graph.facebook.com/USERID/picture?type=large. This URL redirects you to image URL.

Edit: Querying by username is not allowed anymore, so I updated USERNAME_OR_USERID as USERID.

Solution 2

yes you can get..

http://graph.facebook.com/naseer.panhwer/picture?type=normal
http://graph.facebook.com/naseer.panhwer/picture?type=small
http://graph.facebook.com/naseer.panhwer/picture?type=large

Comments

[Paul Sham]

Thanks, cebrici. I know about this URL, but how would I get their username or ID without them authenticating?

[Paul Sham]

Thanks, Naseer. I know about this URL, but how would I get their username or ID without them authenticating?

[Paul Sham]

I figured out that you can't get their username or ID without authenticating. Your answer was better written so I'll give you the answer.

[It's a trap]

I am using this is url, but its redirecting to a page with a blank image with a 'question mark'. Can you help me ?