using System;

using System.IO;

using System.Net;

using Newtonsoft.Json.Linq;

​

public class Program

{

    public static void Main()

    {

        WebRequest request = WebRequest.Create("https://coderbyte.com/api/challenges/json/json-cleaning");

        WebResponse response = request.GetResponse();

        using (Stream data = response.GetResponseStream())

        {

            StreamReader read = new StreamReader(data);

            string text = read.ReadToEnd();

            dynamic json = JObject.Parse(text);

            RemoveJson(json["name"]);

            RemoveJson(json["age"]);

            RemoveJson(json["DOB"]);

            RemoveJson(json["hobbies"]);

            RemoveJson(json["education"]);

            Console.WriteLine(json);

        }

​

        response.Close();

    }

​

    static void RemoveJson(dynamic node)

        {

            bool removed = true;

            while (removed)

            {

                try

                {

                    if(node.Parent.Value.ToString() == "-" || node.Parent.Value.ToString() == "" || node.Parent.Value.ToString() == "N/A")

                    {

                        node.Parent.Remove();

                    }

                    foreach (var item in node)

                    {

                        if (item.Value.ToString() == "" || item.Value.ToString() == "N/A" || item.Value.ToString() == "-")

                        {

                            item.Remove();

                            removed = true;

                            break;

                        }

                        else

                            removed = false;

                    }

                }

                catch (Exception)

                {

                    removed = false;

                }

            }

        }

}