AWSCognitoIdentityMultiFactorAuthentication 永不返回

Question

我以这种方式实现了来自https://github.com/awslabs/aws-sdk-ios-samples/blob/master/CognitoYourUserPools-Sample/Swift/CognitoYourUserPoolsSample/MFAViewController.swift 的示例：

import Foundation
import UIKit
import AWSMobileClient
import AWSCognitoIdentityProvider

class MFAModalViewController: UIViewController {

    @IBOutlet weak var messageLabel: UILabel!
    @IBOutlet var backgroundView: UIView!
    @IBOutlet weak var boxView: UIView!
    @IBOutlet weak var mfaTextField: UITextField!

    public var message: String?
    var mfaCompletionSource: AWSTaskCompletionSource<NSString>?

    @IBAction func mfaTextFieldChanged(_ sender: Any) {
        if let mfaCode = mfaTextField.text, mfaCode.count == 6 {

            self.mfaCompletionSource?.set(result: NSString(string: mfaCode))
        }
    }

    override func viewDidLoad()
    {
        super.viewDidLoad()

        if let message = message {
            messageLabel.text = message
        }
    }
}

extension MFAModalViewController: AWSCognitoIdentityMultiFactorAuthentication {
    func getCode(_ authenticationInput: AWSCognitoIdentityMultifactorAuthenticationInput, mfaCodeCompletionSource: AWSTaskCompletionSource<NSString>) {
        hud.dismiss()

        self.mfaCompletionSource = mfaCodeCompletionSource
    }

    func didCompleteMultifactorAuthenticationStepWithError(_ error: Error?) {
        ...
    }
}

但是，在将 AWSTaskComplettionSource 设置为输入的 MFA 代码后，我再也没有收到对 AWSCognitoIdentityMultiFactorAuthentication 委托中的 didCompleteMultifactorAuthenticationStepWithError 方法的回调。

对我的遗漏有什么想法吗？

Answer 1

好的，解决方案是不使用 AWSCognitoIdentify，而是使用 AWSMobileClient。我错过了一种 MFA 验证方法：

AWSMobileClient.sharedInstance().confirmSignIn(challengeResponse: mfaCode) { (signInResult, error) in

    DispatchQueue.main.async {self.handleConfirmation(signInResult: signInResult, error: error)}
     }
}