UIButton click, Alamofire POST call, doesnt performSegue with a successful Firebase Login

Question

I have a simple button action

I do verify the email and password before going into this, but this is my Firebase code. When you click on the button, it will get into the VerifyUserInformation function and the response will spit out. Basically, the segue's in VerifyUserInformation will not run for me, the dismiss function doesn't dismiss the modal (present full screen) either.

What can be done to fix this?

        Auth.auth().signIn(withEmail: emailOutlet.text!, password: passwordOutlet.text!) { [weak self] user, error in
            guard let strongSelf = self else { return }
            
                if let error = error {
                    self!.displaySnackbar(messageString: "\(error.localizedDescription)")
                    return
                }
            
            self!.preferences.setValue(true, forKey:SHARED_PREF_USER_LOGGED_IN_KEY)

            
            var firstTimeUser = self!.preferences.bool(forKey:FIRST_TIME_USER)
            
            print("\(self!.TAG) FirstTimeUser: \(firstTimeUser)")

            if (firstTimeUser) {
                print("\(self!.TAG) This is the first time the user is using the application.")
                self?.VerifyUserInformation(firebaseId: "\(Auth.auth().currentUser!.uid)")
            } else {
                print("\(self!.TAG) User can head into the Application.")
                self!.performSegue(withIdentifier: "MainScreen", sender: nil)
                self?.progressBar.isHidden = true
                self!.loginButtonOutlet.isHidden = false
            }
            
            
            
        }

To verify the user, I run this function.

func VerifyUserInformation(firebaseId: String) {
    
    let urlString = ADD_USER_FOR_ACCOUNT
    
    let param = [
       FROM_APP: "true",
       USER_FIREBASE_ID: firebaseId,
       GET_USER_ACCOUNT_INFORMATION: "true"
        ] as [String : Any]
    
    
    AF.request(urlString, method: .post, parameters: param ,encoding: URLEncoding.default).responseJSON {
    response in
      switch response.result {
        case .success:
            print("\(self.TAG)\n***Response***\n\(response)\n***END***")
            if let result = response.value {
                let JSON = result as! NSDictionary

                let errorResponse = JSON["error"] as! Int
                if (errorResponse == 1) {
                    print("\(self.TAG) Error verifying the user.")
                    self.displaySnackbar(messageString: "Error verifying user. Try again.")
                } else {
                    print("\(self.TAG) User is verified")
                    let messageResponse = JSON["message"] as! String
                    if (messageResponse == "user has items") {
                        print("\(self.TAG) User has items, go into MainScreen")
                        DispatchQueue.main.async {
                            DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
                                self.performSegue(withIdentifier: "MainScreen", sender: nil)
                                self.dismiss(animated: false, completion: nil)
                                self.preferences.setValue(false, forKey:FIRST_TIME_USER)
                                self.loginButtonOutlet.isHidden = false
                                self.progressBar.isHidden = true
                            }
                        }
                        
                    } else {
                        print("\(self.TAG) User has 0 items, go into Second Onboarding")
                        DispatchQueue.main.async {
                            DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
                                self.performSegue(withIdentifier: "SecondOnBoarding", sender: nil)
                                self.dismiss(animated: false, completion: nil)
                                self.loginButtonOutlet.isHidden = false
                                self.progressBar.isHidden = true
                            }
                        }
                    }
                }
            }
            
            break
        case .failure(let error):
            self.loginButtonOutlet.isHidden = false
            self.progressBar.isHidden = true
            self.displaySnackbar(messageString: "Error getting user information. Try again.")
            print("\(self.TAG) \(error)")
        }
    }
    
    
    
    
}

Answer 1

After removing the dismiss(), it started to work.