using System;

using JsonSubTypes;

using Newtonsoft.Json;

​

namespace ConsoleApp1

{

  public  class Program

    {

       public static void Main(string[] args)

        {

            var jsonText = @"{

    ""version"": 0.6,

    ""generator"": ""Overpass API 0.7.55.7 8b86ff77"",

    ""osm3s"": {

      ""timestamp_osm_base"": ""2019-05-21T18:03:02Z"",

      ""copyright"": ""The data included in this document is from www.openstreetmap.org. The data is made available under ODbL.""

    },

    ""elements"": [

      {

        ""type"": ""node"",

        ""id"": 4949106384,

        ""lat"": 32.2686857,

        ""lon"": -107.738218,

        ""tags"": {

          ""highway"": ""turning_circle""

        }

      },

      {

        ""type"": ""way"",

        ""id"": 14527404,

        ""nodes"": [

          142882281,

          3048075541,

          1598998260

        ],

        ""tags"": {

          ""highway"": ""residential"",

          ""name"": ""West Apple Street"",

          ""tiger:cfcc"": ""A41"",

          ""tiger:county"": ""Luna, NM"",

          ""tiger:name_base"": ""Apple"",

          ""tiger:name_direction_prefix"": ""W"",

          ""tiger:name_type"": ""St"",

          ""tiger:reviewed"": ""no""

        }

      }

    ]

  }";

            var json = JsonConvert.DeserializeObject<OSMdata>(jsonText);

            foreach (Element jsonElement in json.elements)

            {

                Console.WriteLine(jsonElement.GetType());

            }

        }

    }

​

    public class OSMdata

    {

        public float version { get; set; }

        public string generator { get; set; }

        public Osm3s osm3s { get; set; }

        [JsonConverter(typeof(JsonSubtypes), "type")]

        public Element[] elements { get; set; }

    }

​

    public class Osm3s

    {

        public DateTime timestamp_osm_base { get; set; }

        public string copyright { get; set; }

    }

​

​

    [JsonConverter(typeof(JsonSubtypes), "type")]

    [JsonSubtypes.KnownSubType(typeof(Node), "node")]

    [JsonSubtypes.KnownSubType(typeof(Edge), "way")]

    public abstract class Element : OSMdata

    {

        public abstract string type { get; }

    }

​

    public class Node : Element

    {

        public override string type { get { return "node"; } }

        public long id { get; set; }

        public float lat { get; set; }

        public float lon { get; set; }

        public NodeTags tags { get; set; }

    }

​

    public class NodeTags

    {

        public string highway { get; set; }

        public string _ref { get; set; }

    }

​

    public class Edge : Element

    {

        public override string type { get { return "way"; } }

        public long id { get; set; }

        public long[] nodes { get; set; }

        public EdgeTags tags { get; set; }

    }

​

    public class EdgeTags

    {

        public string highway { get; set; }

        public string name { get; set; }

        public string cfcc { get; set; }

        public string county { get; set; }

        public string oneway { get; set; }

    }

​

}

​