Update information user profile Swift 4 - ios

Question

Hello i just implements the method to modify and update the user profile on swift 4 and i have a problem updating the user information (firstname and lastname) in token
//Get token
let token = HPWSLoginManager.shared().saveSuccessResponse.token
// Bearer token to update information
let url = URL(string: "http://51.38.36.76:40/api/v1/updateProfile")
var request = URLRequest(url: url!)
request.httpMethod = "PUT"
request.addValue("Bearer \(token!)", forHTTPHeaderField: "Authorization")
//serialization token
URLSession.shared.dataTask(with: request) { (data, response, error) in
guard let data = data else { return }
do {
let json = try JSONSerialization.jsonObject(with: data, options: .mutableContainers) as! [String: AnyObject]
let sub = json["sub"] as? [String: AnyObject]
DispatchQueue.main.async {
//Get current user
let myUser = PFUser.current()
// check if firstName, lastName are not empty
if(self.firstNameTextfield.text!.isEmpty || self.lastNameTextfield.text!.isEmpty )
{
let myAlert = UIAlertController(title: "Alert", message: "First name and Last name are required fields", preferredStyle: UIAlertControllerStyle.alert);
let okAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.default, handler: nil)
myAlert.addAction(okAction);
self.present(myAlert, animated: true, completion: nil);
return
}
// set new values user
let userFirstName = self.firstNameTextfield.text
let userLastName = self.lastNameTextfield.text
// update information
myUser?.setObject(userFirstName, forKey: "\(sub?["firstname"])")
myUser?.setObject(userLastName, forKey: "\(sub?["lastname"])")
//display activity indicator
let loadingNotification = MBProgressHUD.showAdded(to: self.view, animated: true)
loadingNotification.labelText = "sauvegarde des informations"
myUser?.saveInBackground(block: { (success:Bool, error:NSError?) -> Void in
// Hide activity indicator
loadingNotification.hide(animated: true)
if(error != nil)
{
let myAlert = UIAlertController(title: "Alert", message: error!.localizedDescription, preferredStyle: UIAlertControllerStyle.alert);
let okAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.default, handler: nil)
myAlert.addAction(okAction);
self.present(myAlert, animated: true, completion: nil);
return
}
if(success)
{
let userMessage = "votre profil a été mis a jour"
let myAlert = UIAlertController(title: "Alert", message: userMessage, preferredStyle: UIAlertControllerStyle.alert);
let okAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.default, handler: {(action:UIAlertAction!) -> Void in
self.dismiss(animated: true, completion: {() -> Void in
// self.opener.loadUserDetails()
})
})
myAlert.addAction(okAction);
self.present(myAlert, animated: true, completion: nil);
}
} as! PFBooleanResultBlock)
}
} catch {
print("error")
}
}.resume()
I do not know if it's the right way to update the information, and he recovers userFirstName, userLastName when I seize but myUser?.setObject(userFirstName, forKey: "\(sub?["firstname"])") displays nil on the console. I really need your help thank you in advance :)

Answer 1

Try Replacing these lines in the above code -
var myUser = PFUser.current()
myUser?["\(sub?["firstname"])"] = userFirstName
myUser?["\(sub?["lastname"])"] = userLastName