How to get login username with AWS Mobile-hub SDK

Question

I've been working for a while on the login part of my app. I'm trying to use ASW Mobile Hub for this matter. I found a way to get it work with the different providers I need: my own user pool, FB and Google.

The problem is that I've been searching here and all over the AWS documentation trying to find the way to get user data (Username and some othe user data like picture, email and so on). I can get it if I'm using the FBSDK directly (usingFBSDKGraphRequest) but I don't know how to do it if the user choose to login in my cognito-user-pool. Also I cannot see what provider the user used once succeeded.

I can find some other ways to get that, but using the old SDK o directly Cognito calls and initially is not what I need. Here's the code I'm using to present the login window:

    override func viewDidLoad() {
       super.viewDidLoad()

       if !AWSSignInManager.sharedInstance().isLoggedIn {
         presentAuthUIViewController()
       }
    }

    func presentAuthUIViewController() {
        let config = AWSAuthUIConfiguration()
        config.enableUserPoolsUI = true
        config.addSignInButtonView(class: AWSFacebookSignInButton.self)
        config.addSignInButtonView(class: AWSGoogleSignInButton.self)


        AWSAuthUIViewController.presentViewController(
        with: self.navigationController!,
        configuration: config, completionHandler: { (provider: 
        AWSSignInProvider, error: Error?) in
            if error == nil {
                // SignIn succeeded.
            } else {
                // end user faced error while loggin in, take any 
                required action here.
            }
        })
     }

So, the question is, how can I get the relevant user info, once the signin is succeeded?

Answer 1

I've been working on a workaround till I sort this out in a more elegant way. I guess that I need to go deeper in Cognito's understanding. But the fact is even the sample provided by Amazon doesen't show the User's Name...

Sample Amazon app screen

So, in the meantime, I modified the source code of the Cognito library AWSUserPoolsUIOperations to send me the data directly to my app, on a message:

@implementation AWSUserPoolsUIOperations

-(void)loginWithUserName:(NSString *)userName
            password:(NSString *)password
            navigationController:(UINavigationController *)navController
            completionHandler:(nonnull void (^)(id _Nullable, NSError * 
            _Nullable))completionHandler {
            self.userName = userName;

NSDictionary* userInfo = @{@"username": self.userName};

[[NSNotificationCenter defaultCenter]
 postNotificationName:@"UsernameNotification"
 object:nil userInfo:userInfo];

And then just getting the message in the app and storing the value.

    @objc private func TestNotification(_ notification: NSNotification){
    if let dict = notification.userInfo as NSDictionary? {
        if let username = dict["username"] as? String {
            appEstats.username = username
            defaults.set(username, forKey: sUserName)
        }
    }
}

As I said is not the solution but in the meantime it works.