JSON Data is not fetched to Signuser model class properties to view properties in segued view controller labels in viewdidload - swift

Question

I have a model class of all string variables which i need to display in home view controller when user is successfully logged in.
I have created a seperate function to fetch and assign stuffs from user profile api and assign to model class.
and it's called in login function.
but after the segue to next view controller,Model class variables are still blank in it's viewdidload.(consider it as any viewcontroller )
import UIKit
import Alamofire
import SwiftyJSON
class LoginViewController: UIViewController {
var countries = [String]()
var cities = [String]()
let manager = APIManager()
#IBOutlet var txtUsername: UITextField!
#IBOutlet var txtPassword: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
}
#IBAction func ForgotPasswordAction(_ sender: UIButton) {
}
#IBAction func LoginButtonAction(_ sender: UIButton) {
let username = self.txtUsername.text
let password = self.txtPassword.text
if (username?.isEmpty)! || (password?.isEmpty)!{
self.showAlertWith(title: "Empty Username / Password", message: "Please check if username or password is entered")
}
else {
if Connectivity.isConnectedToInternet{
let parameter:Parameters = ["userItsId":username!,"password":password!]
manager.parsing2(url: BaseURL.login, parameter: parameter) { (JSON, Status) in
if Status { //login success
self.fetchUserProfile()
if JSON["status"] == "true"{
self.performSegue(withIdentifier: "login", sender:self)
}
else{
print("login failed")
}
}
else {
print("error occured,try again later")
}
}
}
else {
self.showAlertWith(title: "No Internet", message: "Please make sure that your device is connected to internet")
}
}
}
#IBAction func NotMemberAction(_ sender: UIButton) {
performSegue(withIdentifier: "register", sender: self)
}
#IBAction func SkipButtonAction(_ sender: UIButton) {
if Connectivity.isConnectedToInternet {
user.isLoggedin = false
performSegue(withIdentifier: "skip", sender: self )
}
else {
self.showAlertWith(title: "Connectivity Error", message: "Please check your connection and make sure that you are connected to the internet")
}
}
func fetchUserProfile(){
let userid = txtUsername.text
let parameter:Parameters = ["userItsId":userid!]
manager.parsing2(url: BaseURL.profile, parameter: parameter) { (JSON, Status) in
if Status{
let dict = JSON.dictionaryObject!
let data = dict["data"] as! [String:String]
let username = data["userName"]
let email = data["email"]
let UserId = data["userId"]
let nationality = data["nationality"]
let country = data["country"]
let mCity = data["mCity"]
let phoneNo = data["phoneNo"]
let dawatTitle = data["dawatTitle"]
let itsId = data["itsId"]
signUser.name = username!
signUser.email = email!
signUser.userID = UserId!
signUser.nationality = nationality!
signUser.country = country!
signUser.mCity = mCity!
signUser.phone = phoneNo!
signUser.dawatName = dawatTitle!
signUser.ItsId = itsId!
}
else {
print("fetching failed")
}
}
}
}