using System;

using System.Collections.Generic;

using System.Text.Json;

using System.Text.Json.Serialization;

​

public class Program

{

    public static void Main()

    {

        // {

        //   "glossary": {

        //     "title": "example glossary",

        //     "GlossDiv": {

        //       "title": "S",

        //       "GlossList": {

        //         "GlossEntry": {

        //           "ID": "SGML",

        //           "SortAs": "SGML",

        //           "GlossTerm": "Standard Generalized Markup Language",

        //           "Acronym": "SGML",

        //           "Abbrev": "ISO 8879:1986",

        //           "GlossDef": {

        //             "para": "A meta-markup language, used to create markup languages such as DocBook.",

        //             "GlossSeeAlso": ["GML", "XML"]

        //           },

        //           "GlossSee": "markup"

        //         }

        //       }

        //     }

        //   }

        // }

        var json = "{\"glossary\":{\"title\":\"example glossary\",\"GlossDiv\":{\"title\":\"S\",\"GlossList\":{\"GlossEntry\":{\"ID\":\"SGML\",\"SortAs\":\"SGML\",\"GlossTerm\":\"Standard Generalized Markup Language\",\"Acronym\":\"SGML\",\"Abbrev\":\"ISO 8879:1986\",\"GlossDef\":{\"para\":\"A meta-markup language, used to create markup languages such as DocBook.\",\"GlossSeeAlso\":[\"GML\", \"XML\"]},\"GlossSee\":\"markup\"}}}}}";

​

        // Easy parsing

        // Any items that are undefined will be set to null

        var serializedJson = JsonObject.Parse(json);

        // Access properties

        Console.WriteLine(serializedJson.Glossary.Title);

        Console.WriteLine("");

        // Or convert to string

        Console.WriteLine(serializedJson.ToString());

    }

​

​

    // Classes to serialize JSON into

    public class GlossDef

    {

        [JsonPropertyName("para")]

        public string Parameter { get; set; }

        public List<string> GlossSeeAlso { get; set; } = new List<string>();

    }

​

    public class GlossEntry

    {

        public string ID { get; set; }

        public string SortAs { get; set; }

        public string GlossTerm { get; set; }

        public string Acronym { get; set; }

        public string Abbrev { get; set; }

        public GlossDef GlossDef { get; set; }

        public string GlossSee { get; set; }

    }

​

    public class GlossList

    {

        public GlossEntry GlossEntry { get; set; }

    }

​

    public class GlossDiv

    {

        [JsonPropertyName("title")]

        public string Title { get; set; }

        public GlossList GlossList { get; set; }

    }

​

    public class Glossary

    {

        [JsonPropertyName("title")]

        public string Title { get; set; }

        public GlossDiv GlossDiv { get; set; }

    }

​

    public class JsonObject

    {

        [JsonPropertyName("glossary")]

        public Glossary Glossary { get; set; }

​

        public static JsonObject Parse(string json) => JsonSerializer.Deserialize<JsonObject>(json);

        public override string ToString() => JsonSerializer.Serialize(this);

    }

}