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/71299580/json-deserialized-object-returns-null

​

    public class Root

    {

        public string status { get; set; }

        public string message { get; set; }

        public Result result { get; set; }

    }

​

    public class Result

    {

        [JsonProperty(PropertyName = "SafeGasPrice")]

        public int SafeGasPrice { get; set; }

​

        [JsonProperty(PropertyName = "ProposeGasPrice")]

        public int ProposeGasPrice { get; set; }

​

        [JsonProperty(PropertyName = "FastGasPrice")]

        public int FastGasPrice { get; set; }

    }

​

​

    class TestClass

    {

        public static void Test()

        {

            var responseBody = @"{""status"":""1"",""message"":""OK"",""result"":{""LastBlock"":""14296250"",""SafeGasPrice"":""96"",""ProposeGasPrice"":""96"",""FastGasPrice"":""97"",""suggestBaseFee"":""95.407119606"",""gasUsedRatio"":""0.174721033333333,0.523179548504219,0.056945596868572,0.999939743363228,0.953861217484817""}}

";

            TestExplicit(responseBody);

            TestAnonymous(responseBody);

        }   

        static void TestExplicit(string responseBody)

        {

            var deserializeObject = JsonConvert.DeserializeObject<Root>(responseBody)?.result;

            Console.WriteLine(deserializeObject.SafeGasPrice.ToString());

            Assert.AreEqual(96, deserializeObject.SafeGasPrice);

        }

        static void TestAnonymous(string responseBody)

        {

            var deserializeObject = JsonConvert.DeserializeAnonymousType(responseBody, new { result = default(Result) })?.result;

            Console.WriteLine(deserializeObject.SafeGasPrice.ToString());

​

            Assert.AreEqual(96, deserializeObject.SafeGasPrice);

        }

    }

​

    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;

        }

    }

​