// survey





                var parameters: Parameters = ["encuesta": (survey?.id)!]

                var arreglo = Array<Dictionary<String, Int>>()

                for element in questions {

                    arreglo.append(["pregunta": element.id, "alternativa": element.selectedChoice])

                }

                parameters["respuestas"] = arreglo


                print(parameters)


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        let username: String = userTextField.text!
        let password: String = passwordTextField.text!

        let parameters: Parameters = [
            "rut": username,
            "password": password
        ]


        let url = Requests.MASTER_URL+"/api/url?username="+username

        print(url)
        // REQUEST A MASTER PARA LOG IN
        Alamofire.request(url, method: .get, parameters: parameters)
            .validate()
            .responseJSON { response in


                print(response.result)
            switch response.result {
            case .success(let data):

                print(".success")
                print("Usuario se encuentra en Master")

                let json = JSON(data)
                //if json["code"] == 0 {

                let tempCredential = LogInCredential()
                tempCredential.username = username
                tempCredential.password = password


                Requests.BASE_URL = json["url"].string!

                let iconImage = IconImage()

                iconImage.iconUrl = Requests.MASTER_URL+json["logo"].string!




            case .failure(let error):
                print(error)



                Utils.message(self, title: "Error", msg: "Error al iniciar sesión.")

            }