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 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/56743470/change-swagger-property-names

​

    public class RootObject

    {

        [JsonProperty(PropertyName = "sub_AssignedToCompanyId@odata.bind")]

        [JsonConverter(typeof(PrefixedGuidConverter), "/accounts")]

        public Guid AssignedToCompany{ get; set; }

    }

​

    public class PrefixedGuidConverter : JsonConverter

    {

        readonly string prefix;

        public PrefixedGuidConverter(string prefix)

        {

            if (prefix == null)

                throw new ArgumentNullException("prefix");

            this.prefix = prefix;

        }

        public override bool CanConvert(Type objectType)

        {

            return objectType == typeof(Guid) || objectType == typeof(Guid?);

        }

​

        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)

        {

            if (reader.MoveToContentAndAssert().TokenType == JsonToken.Null)

                return null;

            else if (reader.TokenType == JsonToken.String)

            {

                var value = ((string)reader.Value).Trim();

                if (value.StartsWith(prefix))

                {

                    return Guid.Parse(value.Substring(prefix.Length, value.Length - prefix.Length));

                }

            }

            // The current token is not  a string, or a string that does not start with the prefix, so throw an error:

            throw new JsonSerializationException(string.Format("Unexpected JSON token {0}: {1}.", reader.TokenType, reader.Value));

        }

​

        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)

        {

            serializer.Serialize(writer, prefix + ((Guid)value).ToString("P", serializer.Culture));

        }

    }

​

    public static partial class JsonExtensions

    {

        public static JsonReader ReadToContentAndAssert(this JsonReader reader)

        {

            return reader.ReadAndAssert().MoveToContentAndAssert();

        }

​

        public static JsonReader MoveToContentAndAssert(this JsonReader reader)

        {

            if (reader == null)

                throw new ArgumentNullException();

            if (reader.TokenType == JsonToken.None)       // Skip past beginning of stream.

                reader.ReadAndAssert();

            while (reader.TokenType == JsonToken.Comment) // Skip past comments.

                reader.ReadAndAssert();

            return reader;

        }

​

        public static JsonReader ReadAndAssert(this JsonReader reader)

        {

            if (reader == null)

                throw new ArgumentNullException();

            if (!reader.Read())

                throw new JsonReaderException("Unexpected end of JSON stream.");

            return reader;

        }

    }

​

    class TestClass

    {

        public static void Test()

        {

            var json = GetJson();

            var root = JsonConvert.DeserializeObject<RootObject>(json);

            Assert.IsTrue(root.AssignedToCompany == Guid.Parse("f52f9dd7-35e5-e711-813b-480fcff40721"));

            var json2 = JsonConvert.SerializeObject(root, Formatting.Indented);

            Console.WriteLine("Reserialized JSON:");

            Console.WriteLine(json2);

            Assert.IsTrue(JToken.DeepEquals(JToken.Parse(json), JToken.Parse(json2)));

        }   

        static string GetJson()

        {

            var json = @"{

    ""sub_AssignedToCompanyId@odata.bind"": ""/accounts(f52f9dd7-35e5-e711-813b-480fcff40721)""

}";

            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();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

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

                Console.WriteLine(ex);

                throw;

            }

        }

    }

​