backend-image-nsurlsession.swift

URLSession.shared.dataTask(with: backendurl!) { data, _, error in
    if error != nil {
        print(error)
        return
    }
    
    let imageurl = String(data: data!, encoding: String.Encoding.utf8) as String! // For simplicity response is only the URL
    URLSession.shared.dataTask(with: URL(string:imageurl!)!) { (data, response, error) in
        if error != nil {
            print(error)
            return
        }
        DispatchQueue.main.async {
            imageView.image = UIImage(data: data!)
        }
    }.resume()
}.resume()