using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

using System.Data;

​

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/74658528/how-to-extract-the-data-for-this-type-of-json-array-with-newtonsoft-json

​

    class TestClass

    {

        public static void Test()

        {

            var jsonString = GetJson();

            var jtoken = JToken.Parse(jsonString); // Or load the JSON from a stream

            var ids = jtoken.SelectTokens("data.cars.results[*].id").Select(id => (int)id).ToArray(); // Remove the .Select(id => (int)id) if you want them as strings

​

            Console.WriteLine("{0} ids found:", ids.Length); // Prints 100

            Console.WriteLine(string.Join(",", ids));        // Prints the deserialized ids

        }   

        static string GetJson() =>

"""

{"data":

    {"cars":

        {"total":117,

        "results":[

            {"id":"779579"},

            {"id":"952209"},

            {"id":"1103285"},

            {"id":"1157321"},

            {"id":"1372321"},

            {"id":"1533192"},

            {"id":"1630240"},

            {"id":"2061824"},

            {"id":"2312383"},

            {"id":"2353755"},

            {"id":"2796716"},

            {"id":"2811260"},

            {"id":"2824839"},

            {"id":"2961828"},

            {"id":"3315226"},

            {"id":"3586555"},

            {"id":"3668182"},

            {"id":"3986886"},

            {"id":"3989623"},

            {"id":"3998581"},

            {"id":"4021057"},

            {"id":"4038880"},

            {"id":"4308809"},

            {"id":"4325718"},

            {"id":"4352725"},

            {"id":"4360349"},

            {"id":"4628661"},

            {"id":"4863093"},

            {"id":"4940146"},

            {"id":"4947395"},

            {"id":"5157781"},

            {"id":"5794466"},

            {"id":"6134469"},

            {"id":"6157337"},

            {"id":"6307352"},

            {"id":"6727975"},

            {"id":"6783794"},

            {"id":"6831800"},

            {"id":"6960771"},

            {"id":"7159286"},

            {"id":"7211880"},

            {"id":"7212277"},

            {"id":"7217410"},

            {"id":"7264660"},

            {"id":"7406984"},

            {"id":"7893798"},

            {"id":"7948268"},

            {"id":"8047751"},

            {"id":"8271106"},

            {"id":"8346001"},

            {"id":"8352176"},

            {"id":"8485193"},

            {"id":"8746468"},

            {"id":"8801718"},

            {"id":"9104008"},

            {"id":"9494179"},

            {"id":"9588599"},

            {"id":"9717878"},

            {"id":"9845048"},

            {"id":"9891941"},

            {"id":"9943516"},

            {"id":"10002374"},

            {"id":"10213949"},

            {"id":"10326370"},

            {"id":"10499431"},

            {"id":"10518069"},

            {"id":"10538037"},

            {"id":"10589618"},

            {"id":"10602337"},

            {"id":"10723171"},

            {"id":"10724725"},

            {"id":"10746729"},

            {"id":"10751575"},

            {"id":"10752559"},

            {"id":"10852235"},

            {"id":"10867573"},

            {"id":"10877115"},

            {"id":"10893349"},

            {"id":"10988880"},

            {"id":"10993485"},

            {"id":"11026957"},

            {"id":"11111205"},

            {"id":"11122085"},

            {"id":"11150052"},

            {"id":"11251748"},

            {"id":"11259887"},

            {"id":"11270391"},

            {"id":"11291731"},

            {"id":"11303142"},

            {"id":"11303143"},

            {"id":"11308615"},

            {"id":"11313379"},

            {"id":"11334337"},

            {"id":"11338119"},

            {"id":"11338290"},

            {"id":"11339650"},

            {"id":"11347202"},

            {"id":"11359983"},

            {"id":"11390048"},

            {"id":"11399541"}]}}}

""";

    }

​

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: {0} ({1}), {2}", System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription , Environment.Version, Environment.OSVersion);

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

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

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

                Console.WriteLine(ex);

                throw;

            }

        }

    }

​