using System;

using Newtonsoft.Json;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

            string input = @"    {

        ""vid"": 2301,

        ""portal-id"": 5532227,

        ""is-contact"": true,

        ""profile-url"": ""https://app.hubspot.com/contacts/5532227/contact/2301"",

        ""properties"": {

            ""firstname"": {

                ""value"": ""Carlos""

            },

            ""lastmodifieddate"": {

                ""value"": ""1554886333954""

            },

            ""company"": {

                ""value"": ""Khaos Control""

            },

            ""lastname"": {

                ""value"": ""Swannington""

            }

        }

    }";

​

        var foo = ContactListAPI_Result.FromJson(input);

        var result = foo.ToDTO();

        Console.WriteLine("Print all properties:");

        foreach(var p in result.Properties){

            Console.WriteLine(p.Key+" - "+p.Value);

        }

        Console.WriteLine("\n\n Print one particular");

        Console.WriteLine(result.Properties["company"]);

    }

}

​

public partial class ContactListAPI_Result

{

    [JsonProperty("vid")]

    public long Vid { get; set; }

​

    [JsonProperty("portal-id")]

    public long PortalId { get; set; }

​

    [JsonProperty("is-contact")]

    public bool IsContact { get; set; }

​

    [JsonProperty("profile-url")]

    public Uri ProfileUrl { get; set; }

​

    [JsonProperty("properties")]

    public Dictionary<string, Dictionary<string, string>> Properties { get; set; }

}

​

public partial class ContactListAPI_Result

{

    public static ContactListAPI_Result FromJson(string json) {

        return  JsonConvert.DeserializeObject<ContactListAPI_Result>(json);}

    //public static ContactListAPI_Result FromJson(string json) 

    //  => JsonConvert.DeserializeObject<ContactListAPI_Result>(json, Converter.Settings);

    public ItemDTO ToDTO()

    {

        return new ItemDTO

        {

            Vid = Vid,

            PortalId = PortalId,

            IsContact = IsContact,

            ProfileUrl = ProfileUrl,

            Properties = 

                Properties.ToDictionary(

                    p => p.Key, 

                    p => p.Value["value"]

                )

        };

    }

}

​

public partial class ItemDTO

{

    public long Vid { get; set; }

    public long PortalId { get; set; }

    public bool IsContact { get; set; }

    public Uri ProfileUrl { get; set; }

    public Dictionary<string, string> Properties { get; set; }

}

​