using System;

using System.Net;

using System.IO;

using System.Text;

using System.Collections.Generic;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

            JsonData jsonData = new JsonData();

            string webString = jsonData.StreamJson("https://www.avvenireinc.com/wp-content/uploads/2018/10/technologies.json");

            string result = jsonData.deserializeJson(webString);

            Console.WriteLine(result);

    }

    interface IGetJsonData

    {

        string StreamJson(string url);

    }

​

    interface IJsonData

    {

        string deserializeJson(string webString);

    }

​

    public class JsonData: IJsonData, IGetJsonData

    {

        //get Json data from http

        public string StreamJson(string url)

        {

            string webString = "";

            DisplayError error = new DisplayError();

            try

            {

                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

                HttpWebResponse response = (HttpWebResponse)request.GetResponse();

                Stream responseStream = response.GetResponseStream();

                using (StreamReader readerStream = new StreamReader(responseStream, Encoding.GetEncoding("utf-8")))

                {

                    webString = readerStream.ReadToEnd();

                }

            }

            catch (Exception ex)

            {

                error.ShowErrors(ex);

            }

​

            return webString;

        }

​

        //serialize Json data

        public string deserializeJson(string webString)

        {

            DisplayError error = new DisplayError();

            List<Metadata> listOfTypes = new List<Metadata>();

            try

            {

                dynamic jsonObj = JsonConvert.DeserializeObject(webString);

                foreach (var jsonSet in jsonObj)

                {

                    Metadata type = new Metadata

                    {

                        Name = jsonSet["name"],

                        Type = jsonSet["metadata"]["type"]

                    };

                    listOfTypes.Add(type);

                }

            }

            catch (Exception ex)

            {

                error.ShowErrors(ex);

            }

​

            string langString = "Language: \r\n";

            string frameWorkString = "Framework: \r\n";

            if (listOfTypes.Count > 0)

            {

                foreach (Metadata md in listOfTypes)

                {

                    if (md.Type == "Language")

                    {

                        langString = langString + md.Name + "\r\n";

                    }

                    if (md.Type == "Framework")

                    {

                        frameWorkString = frameWorkString + md.Name + "\r\n";

                    }

                }

            }

            else

            {

                Console.WriteLine("\r\nJSON data did not contain any of the specified identifiers or is not formatted properly.");

            }

​

            return langString + "\r\n" + "\r\n" + frameWorkString;

        }

    }

​

    //simple console error display

    public class DisplayError

    {

        public void ShowErrors(Exception ex)

        {

            Console.WriteLine("\r\n" + ex.Message);

        }

    }

​

    public class Metadata

    {

        public string Name { get; set; }

        public string Type { get; set; }

    }

}