选择 firebase 时，无法存储下拉值 label？

Question

I am having some issues with my dropdown in unity, whenever I select a value in my dropdown and press on the button, it wont store that selected value to my firebase child (database). Can anyone see what is going on with my code below? thank you for your help. here is my code.

     public async void FindMissingObject()
    {

        var httpWebRequest =
            (HttpWebRequest) WebRequest.Create("https://PROJECT_URL.firebaseio.com/missingObject/message.json");
        httpWebRequest.ContentType = "application/json";
        httpWebRequest.Method = "PUT";


        using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
        {



        string missingObjectCount = "{\"message\":\"" + _dropdown.captionText + "\"}}";
          streamWriter.Write(missingObjectCount);

        }

        var httpResponse = (HttpWebResponse) httpWebRequest.GetResponse();
        using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
        {
            var result = streamReader.ReadToEnd();
            Debug.Log(result);

        }


        SceneManager.LoadScene("Quiz");

    }



} 

Answer 1

It might be possible that the error stems from this line where you have one to many } braces and was rejected by the server:

string missingObjectCount = "{\"message\":\"" + _dropdown.captionText + "\"}}";
//                                                                     here ^