How would i go about changing seque views if the response is 200 or not from a Alamofire request

Question

So I am working on a application that logs into something I am also using alamofire. Now what I want to do is to have it go to a new view when the response code for the connection is 200 (success) and then go to a different windows when the response code is 204 (failure) I am writing this in swift 3.

Here is my current IBAction

 @IBAction func loginBtn(_ sender: Any) {

    self.dismiss(animated: true, completion: nil)
    self.performSegue(withIdentifier: "login", sender: isvalid200())

    self.dismiss(animated: true, completion: nil)
    self.performSegue(withIdentifier: "error", sender: isinvalid())

Now I know thats not how it is suppose to be done but it's what I have in mind. Also, here is my error handling code.

func isvalid200() {

    Alamofire.request("https://myanimelist.net/api/account/verify_credentials.xml/\(user)/\(pass)")
        .validate(statusCode: 200..<200) // if error is 200
        .validate(contentType: ["application/json"])


       }


    func isinvalid() {


    Alamofire.request("https://myanimelist.net/api/account/verify_credentials.xml/\(user)/\(pass)")
        .validate(statusCode: 204..<204) // if error is 204
        .validate(contentType: ["application/json"])
    }

As for the error I get it is this

MyAnime[7446:265163] >'s window is not equal to 's view's window!

(without the self.dimiss but with it, it does work however it doesn't stay go to a specific windows based on the response code I.E 200 or 204.

Any help would be great!

Answer 1

Try something like this which switches on the statusCode

@IBAction func loginBtn(_ sender: Any) {
   Alamofire.request("https://myanimelist.net/api/account/verify_credentials.xml/\(user)/\(pass)").responseJSON { [weak self] response in
      guard let strongSelf = self, let resp = response.response else { return }
    switch resp.statusCode {
       case 200:
          DispatchQueue.main.async {
            strongSelf.performSegue(withIdentifier: "login", sender: strongSelf)
          }
       case 204:
          DispatchQueue.main.async {
            strongSelf.performSegue(withIdentifier: "error", sender: strongSelf)
          }
       default:
        //Some other status code
    }
  }
}

To give some explanation on what's going on lets break it down by step:

• User presses login button after entering username/password
• You make your network request to verify the credentials
• Once you receive a response you can handle whether this is a valid user or not based on the status code
• At this point, you just need to perform the necessary segue to transition to the next view controller. You would only call dismiss if you wanted to go back to the presenting view controller.