IOS Facebook SDK: login doesn't return email despite permissions granted

Question

I'm trying to get information through the facebook sdk but so far I'm getting only the id and the name of the user, although I'm sure there is an email available, as it is my account. I've been looking at several answer here but none of them solved my problem so far. What am I doing wrong, and why is it not returning more data as I am requesting several permissions?

Here is my code:

fbLoginManager.logInWithReadPermissions(["public_profile", "email", "user_friends", "user_about_me", "user_birthday"], handler: { (result, error) -> Void in
        if ((error) != nil)
        {
            // Process error
            println("There were an error: \(error)")
        }
        else if result.isCancelled {
            // Handle cancellations
            fbLoginManager.logOut()
        }
        else {
            var fbloginresult : FBSDKLoginManagerLoginResult = result
            if(fbloginresult.grantedPermissions.contains("email"))
            {
                println(fbloginresult)
                self.returnUserData()
            }
        }
    })

And the function to get the user data:

func returnUserData()
{
    let graphRequest : FBSDKGraphRequest = FBSDKGraphRequest(graphPath: "me", parameters: nil)
    graphRequest.startWithCompletionHandler({ (connection, result, error) -> Void in

        if ((error) != nil)
        {
            // Process error
            println("Error: \(error)")
        }
        else
        {
            println("fetched user: \(result)")

            if let userName : NSString = result.valueForKey("name") as? NSString {
                println("User Name is: \(userName)")
            }
            if let userEmail : NSString = result.valueForKey("email") as? NSString {
                println("User Email is: \(userEmail)")
            }
        }
    })
}

Which returns:

fetched user: {
id = 55555555;
name = "Kali Aney";
}
User Name is: Kali Aney

Answer 1

Facebook Graph API broke it’s backward compatibility (when used in a default fashion) Since Graph-API version 2.4 (Pod Version 4.4.0).

FB Graph-API 2.4 does NOT return all default fields for user

To resolve this you can either use explicitly graph version 2.3:

[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:nil tokenString:[FBSDKAccessToken currentAccessToken].tokenString version:@"v2.3" HTTPMethod:nil]

in which case FB assures v2.3 will be available at least 2 years from now. https://developers.facebook.com/docs/graph-api/overview:

The Graph API has multiple versions available to access at any one time. Each version contains a set ofcore fields and edge operations. We make a guarantee that those core APIs will be available and un-modified in that version for at least 2 years from release. The platform changelog can tell you which versions are currently available.

OR

you can use new Graph-API (v2.4) in by asking for specific fields you are interested in:

[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:@{@"fields" : @"email,name"}]

Answer 2

I struggled with this problem for almost a day until finding the answer by @HeTzi, which worked perfectly. The swift version of such a request is:

func referenceFBData() {
    var request = FBSDKGraphRequest(graphPath:"me", parameters: ["fields":"email,first_name,gender"]);

    request.startWithCompletionHandler { (connection : FBSDKGraphRequestConnection!, result : AnyObject!, error : NSError!) -> Void in
        if error == nil {
            println("The information requested is : \(result)")
        } else {
            println("Error getting information \(error)");
        }
    }
}

Remember that you must first request the proper read permissions to obtain data using this request.