using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Runtime.Serialization.Formatters;

using System.IO;

using System.Data;

using System.ComponentModel.DataAnnotations;

using System.Globalization;

using System.Reflection;

using System.Collections.ObjectModel;

​

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;    

​

using NUnit.Framework; // Throws NUnit.Framework.AssertionException

​

//https://stackoverflow.com/questions/67884810/how-to-deserialize-a-json-stream-to-an-jtoken

​

    public static partial class JsonExtensions

    {

        public static JToken LoadFromStream(Stream s, JsonLoadSettings settings = default, bool closeInput = true, FloatParseHandling? floatParseHandling = default, DateParseHandling? dateParseHandling = default)

        {

            using (var reader = new StreamReader(s))

            using (var jsonReader = new JsonTextReader(reader) { CloseInput = closeInput })

            {

                if (floatParseHandling != null)

                    jsonReader.FloatParseHandling = floatParseHandling.Value;

                if (dateParseHandling != null)

                    jsonReader.DateParseHandling = dateParseHandling.Value;

                // You might also need to configure DateTimeZoneHandling, DateFormatString and Culture to fully control loading of dates and times.

                return JToken.Load(jsonReader, settings);

            }

        }       

​

        public static T Deserialize<T>(Stream s, JsonSerializerSettings settings = default, bool closeInput = true)

        {

            // This method taken from this answer https://stackoverflow.com/a/22689976/3744182

            // By https://stackoverflow.com/users/740230/ygaradon

            // To https://stackoverflow.com/questions/8157636/can-json-net-serialize-deserialize-to-from-a-stream

            // And modified to pass in settings and control whether the input stream is closed

            using (var reader = new StreamReader(s))

            using (var jsonReader = new JsonTextReader(reader) { CloseInput = closeInput })

            {

                JsonSerializer ser = JsonSerializer.CreateDefault(settings);

                return ser.Deserialize<T>(jsonReader);

            }

        }

    }

​

    class TestClass

    {

        public static void Test()

        {

            foreach (var json in GetJson())

            {

                using var stream = new MemoryStream(Encoding.UTF8.GetBytes(json));

                var token = JsonExtensions.LoadFromStream(stream, new JsonLoadSettings {  /* Add your preferred load settings here */});

                Console.WriteLine(token);

                IJsonLineInfo lineInfo = token;

                Console.WriteLine("HasLineInfo: {0}", lineInfo != null && lineInfo.HasLineInfo());

            }

​

            foreach (var json in GetJson())

            {

                using var stream = new MemoryStream(Encoding.UTF8.GetBytes(json));

                var token = JsonExtensions.Deserialize<JToken>(stream, new JsonSerializerSettings { /* Add your preferred serializer settings here */ });

                Console.WriteLine(token);

                IJsonLineInfo lineInfo = token;

                Console.WriteLine("HasLineInfo: {0}", lineInfo != null && lineInfo.HasLineInfo());

            }

        }   

        public static IEnumerable<string> GetJson()

        {

            var primitives = new []

            {

                @"null",

                @"true",

                @"false",

                @"1010101",

                @"1010101.10101",

                @"""hello""",

                @"""𩸽""", // A character not in the basic multilingual plane

                @"""2009-02-15T00:00:00Z""", //https://www.newtonsoft.com/json/help/html/DatesInJSON.htm

                @"""\uD867\uDE3D\""\\\/\b\f\n\r\t\u0121""",

            };

​

            // Copied from https://json.org/example.html

            var examples = new []

            {

                @"{ 

    ""glossary"": {

        ""title"": ""example glossary"",

        ""GlossDiv"": {

            ""title"": ""S"",

            ""GlossList"": {

                ""GlossEntry"": {

                    ""GlossDef"": {

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

                    },

                    ""GlossSee"": ""markup""

                }

            }

        }

    }

}",

                @"[[{""menu"": {

  ""id"": ""file"",

  ""value"": ""File"",

  ""popup"": {

    ""menuitem"": [

      {""value"": ""Close"", ""onclick"": ""CloseDoc()""}

    ]

  }

}}]]"

            };

            return primitives.Concat(examples);

        }

    }   

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: {0} ({1})", System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription , GetNetCoreVersion());

            Console.WriteLine("{0} version: {1}", typeof(JsonSerializer).Assembly.GetName().Name,  typeof(JsonSerializer).Assembly.FullName);

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

                Console.WriteLine("Failed with unhandled exception: ");

                Console.WriteLine(ex);

                throw;

            }

        }

        public static string GetNetCoreVersion()

        {

            //https://techblog.dorogin.com/how-to-detect-net-core-version-in-runtime-ecd65ad695be

            //

            var assembly = typeof(System.Runtime.GCSettings).GetTypeInfo().Assembly;

            var assemblyPath = assembly.Location.Split(new[] { '/', '\\' }, StringSplitOptions.RemoveEmptyEntries);

            int netCoreAppIndex = Array.IndexOf(assemblyPath, "Microsoft.NETCore.App");

            if (netCoreAppIndex > 0 && netCoreAppIndex < assemblyPath.Length - 2)

                return assemblyPath[netCoreAppIndex + 1];

            return null;

        }

    }

​