using System.Text.Json;
using System.Text.Json.Serialization;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddOpenApi();

var app = builder.Build();

app.UseHttpsRedirection();
app.MapOpenApi();

app.MapGet("/", () => new ExampleModel());

app.Run();

public class GenericConverterFactory : JsonConverterFactory
{
    public override bool CanConvert(Type typeToConvert) => typeToConvert.GetGenericTypeDefinition() == typeof(GenericValue<>);

    public override JsonConverter? CreateConverter(Type typeToConvert, JsonSerializerOptions options) => (JsonConverter?)Activator.CreateInstance(typeof(GenericConverter<>).MakeGenericType(typeToConvert.GetGenericArguments()[0]));
}

public class GenericConverter<T> : JsonConverter<GenericValue<T>>
{
    public override GenericValue<T> Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) => throw new NotImplementedException();

    public override void Write(Utf8JsonWriter writer, GenericValue<T> value, JsonSerializerOptions options) => throw new NotImplementedException();
}

[JsonConverter(typeof(GenericConverterFactory))]
public readonly struct GenericValue<TId>
{
    public TId Id { get; init; }
}

public class ExampleModel
{
    public GenericValue<Guid> GuidValue { get; set; }
    public GenericValue<string> StringValue { get; set; }
}