Upvote:7

Aprove answer 
uploadProfilePicTask.downloadURL(completion: { (url, error) in
                    if (error == nil) {
                        if let downloadUrl = url {
                           // Make you download string
                           let downloadString = downloadUrl.absoluteString
                        }
                    } else {
                   // Do something if error
                    }
           })

Upvote:2 

    uploadTask.observe(.success) { snapshot in
        guard let imageURL = snapshot.metadata?.storageReference?.downloadURL(completion: { (url, error) in if error != nil {
            print(error as Any)
        } else {                      //add all you want

            }
        }) else { return }
        let imageStr = String(describing: imageURL)
        DBService.manager.updatePhoto(profileImageUrl: imageStr)
        AuthService.manager.updatePhoto(urlString: imageStr)
    }

}

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