using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

​

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/78392886/c-sharp-json-deserialize-dynamic-type

​

public class MyApiResponseClass 

{

    //... other properties

    [JsonProperty("custom_attributes")]

    public List<CustomAttribute> CustomAttributes { get; set; } = new();

}

​

public class CustomAttribute

{

    public CustomAttribute() { }

    [JsonConstructor]

    public CustomAttribute(string attributeCode, object value) => (this.AttributeCode, this.Value) = (attributeCode, value);

    [JsonProperty("attribute_code")]

    public string AttributeCode { get; set; } = string.Empty;

​

    [JsonProperty("value", ObjectCreationHandling = ObjectCreationHandling.Replace)]

    public object Value { get; set; } = string.Empty;

}

​

    class TestClass

    {

        public static void Test()

        {

            var responseContent = GetJson();

            var response = JsonConvert.DeserializeObject<MyApiResponseClass>(responseContent);

​

            var newJson = JsonConvert.SerializeObject(response, Formatting.Indented);

            Console.WriteLine("Re-serialized {0}:", response);

            Console.WriteLine(newJson);

        }   

        static string GetJson() =>

"""

{

    "custom_attributes": [

        {

            "attribute_code": "required_options",

            "value": "simple"

        },

        {

            "attribute_code": "category_ids",

            "value": [

                "2"

            ]

        },

        {

            "attribute_code": "has_options",

            "value": "0"

        },

        {

            "attribute_code": "an_object",

            "value": {"0":"1"}

        }

    ]

}

""";

    }

​

    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;

            }

        }

    }

​