using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Net;

using System.IO;

using System.Threading.Tasks;

​

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;

    // https://stackoverflow.com/questions/43855083/what-is-the-jsonpath-syntax-used-by-json-net

​

​

    class TestClass

    {

        public static void Test()

        {

            var root = JToken.Parse(GetJson());

​

            var path = @"$.['a','b'][*].id";

​

            var tokens = root.SelectTokens(path);

​

            Console.WriteLine("Result of query from path \"{0}\":", path);

            Console.WriteLine(JsonConvert.SerializeObject(tokens));

        }

​

        static string GetJson()

        {

            var json = @"{

    ""a"": [

        {

            ""id"": 1

        }

    ],

    ""b"": [

        {

            ""id"": 2

        },

        {

            ""id"": 3,

            ""c"": {

                ""id"": 4

            }

        }

    ],

    ""d"": [

        {

            ""id"": 5

        }

    ]

}";

            return json;

        }

    }

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: " + Environment.Version);

            Console.WriteLine("Json.NET version: " + typeof(JsonSerializer).Assembly.FullName);

            Console.WriteLine("");

            TestClass.Test();       

        }

    }