Swift - problem z wyciągnięciem konkretnych danych z JSON-a

 let url = URL(string: "http://81.352.025.214:7342/api/sprzedarz")

        let task = URLSession.shared.dataTask(with: url!) { (data,response, error) in

            if error != nil

            {

                print("ERROR NR 1")

            }

            else {

                if let content = data

                {

                    do

                    {

                        print("Start")

                        //lista

                        let myJSON = try JSONSerialization.jsonObject(with: content, options: JSONSerialization.ReadingOptions.mutableContainers) as AnyObject

                        print(myJSON)

                        if let symbol = myJSON["symbol"] as? NSDictionary

                        {

                            print(symbol)

                        }

                    }

                    catch{

                        print("Bład NR 2")

                    }

                }

            }

        }

        task.resume()

    }

[
    {
        "symbol": "abc",
        "ilosc": 20
    },
    {
        "symbol": "XZY",
        "ilosc": 25
    }
]

  func Connect() {

        let url =  "http://ipjakies:jakiisport/api/Sprzedarz"
        let UrlObj = URL(string: url)
        URLSession.shared.dataTask(with: UrlObj!){(data,response,error)in
            do{
                var Towary = try JSONDecoder().decode([towar].self , from: data!)
                for towar in Towary{
                 print(towar.symbol!)
                  print(towar.ilosc!)
                }
            }catch{
                print("we have the fucking error")
            }
        }.resume(
    }

       let symbol : String?
       let ilosc : Double?

   }