it throws this error: Value of type 'StorageMetadata' has no member 'downloadURL'

Question

I need help with this coding, i'm not sure what has happened.please don't duplicate this question or similar as I already tried any solution on the internet and nothing worked. I am trying to get "access to download URL after upload".

I attempted :I use the autocomplete of the metadata it shows no url option the closest I got was metadata.path or metadata.storageReference.

2nd attempt: I know The API had changed at version 5.0.0, so I use StorageReference's downloadURL method. that gives me an error too maybe I am putting it on the wrong line of code or else.

here is the class :-

import UIKit
import Firebase
import FirebaseDatabase
import FirebaseStorage
import SwiftKeychainWrapper

class SignUpVC: UIViewController, UIImagePickerControllerDelegate,UINavigationControllerDelegate{

@IBOutlet weak var userImagePicker: UIImageView!
@IBOutlet weak var userNameField: UITextField!
@IBOutlet weak var SignUpBtn: UIButton!

var userId: String!
var emailField: String!
var passwordField: String!
var imagePicker: UIImagePickerController!
var imageselected = false
var userName: String!

//Do any Additional SetUp after  loading the view
override func viewDidLoad() {
    super .viewDidLoad()

    imagePicker = UIImagePickerController()
    imagePicker.delegate = self
    imagePicker.allowsEditing = true
}
override func viewDidAppear(_ animated: Bool) {

    if let _ = KeychainWrapper.standard.string(forKey: "uid") {
        performSegue(withIdentifier: "ToMessges", sender: nil)
        }
    }
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
    if let image = info[UIImagePickerController.InfoKey.editedImage] as? UIImage{
        userImagePicker.image = image
        imageselected = true
    }else{
        print("Image wasent selected!")
        imagePicker.dismiss(animated: true, completion: nil)
    }
}
func setuser(img: String){
    let userData = [
        "username": userName!,"userimage": img]
    KeychainWrapper.standard.set(userId, forKey: "uid")
    let location = Database.database().reference().child("users").child(userId)
    location.setValue(userData)
    dismiss(animated: true, completion: nil)
}

func uploadImg (){
        if userNameField.text == nil {
            SignUpBtn.isEnabled = false

        }else {
            userName = userNameField.text
            SignUpBtn.isEnabled = true
        }

        guard let img = userImagePicker.image, imageselected == true else {
            print("Image needs to be selected")

            return
        }

        if let imgData = img.jpegData(compressionQuality: 0.2) {

            let imgUid = NSUUID().uuidString
            let metadata = StorageMetadata()
            metadata.contentType = "image/Jpeg"
            Storage.storage().reference().child(imgUid).putData(imgData, metadata:metadata){(metaData,error
                ) in

                if error != nil {
                print("Did not upload Image!")

            }else {
                   print("Uploaded")

                    let downloadURL = metadata.downloadURL()?.absoulteString      //error here 

                    if let url = downloadURL {
                        self.setUser(img:url)
                    }
                }
            }
        }
    }

Answer 1

As per Firebase doc, you may there is no direct property downloadURL in StorageMetadata class. So you may have to use dictionaryRepresentation and access download link using mediaLink key.

Example:

if let downloadURL = metadata.dictionaryRepresentation()["mediaLink"] as? String{

     self.setUser(img:downloadURL)
}