Login Validation from parsed result - ios

Question

I've successfully parsed an result from a SOAP WebServices request I made, by sending in a userName and password.
But now I need to validate this login function and if true segue to a new view programmatically:
let menuPageView = (self.storyboard?.instantiateViewController(withIdentifier: "MenuCentral"))!
self.present(menuPageView, animated: true, completion: nil)
The problem is I don't know how or where to add such validation.
class LoginCentralViewController: UIViewController, SOAPServiceProtocol {
var chave = ChaveWebService().chave()
var soapService : SOAPService?
var resultadoLoginCentral : [LoginCentralModel]!
#IBOutlet weak var txtUsuarioOUTLET: UITextField!
#IBOutlet weak var txtSenhaOUTLET: UITextField!
#IBOutlet weak var btnAcessarOUTLET: UIButton!
override func viewDidLoad() {
super.viewDidLoad()
soapService = SOAPService(delegate: self)
print(chave)
}
#IBAction func btnAcessarACTION(_ sender: Any) {
soapService?.loginCentral(userName: txtUsuarioOUTLET.text!, password: txtSenhaOUTLET.text!, methodName: nomeServico)
UIApplication.shared.isNetworkActivityIndicatorVisible = true
}
func didSuccessRequest(results: XMLIndexer, requestName: String) {
UIApplication.shared.isNetworkActivityIndicatorVisible = false
switch requestName {
case nomeServico:
do{
resultadoLoginCentral = try LoginCentralModel.realizarLoginCentral(results: results)
} catch let error as XMLParseError{
print(error.description)
return
} catch {
print(error)
return
}
print("codigoCliente = ", resultadoLoginCentral[0].codigoCliente)
print("permissoes = " , resultadoLoginCentral[0].permissoes)
break
default:
break
}
}
func didFailRequest(err: String, requestName: String) {
UIApplication.shared.isNetworkActivityIndicatorVisible = false
switch requestName {
case nomeServico:
return
default:
break
}
}
func showAlert() {
let loginAlert = UIAlertController(title: "Central do Assinante", message: "Login/Senha inválidos", preferredStyle: .alert)
let acaoDefault = UIAlertAction(title: "OK", style: .destructive, handler: nil)
loginAlert.addAction(acaoDefault)
present(loginAlert, animated: true, completion: nil)
}
}

Answer 1

You can put your validation code here
do{
resultadoLoginCentral = try LoginCentralModel.realizarLoginCentral(results: results)
//Put here code
// we need to call this in main thread
DispatchQueue.main.sync {
if resultadoLoginCentral.codigoCliente.characters.count > 0 && resultadoLoginCentral.permissoes.characters.count > 0{{
// Login process
}else{
//Show Alert
}
}
}
Hope this helps