An example of filter ordering based on enum

AppAuthFilterAttribute.cs

public class AppAuthFilterAttribute : Attribute, IAuthorizationFilter, IAppOrderedFilter
{
    public FilterOrder Order { get; set; }

    public void OnAuthorization(AuthorizationFilterContext context)
    {
        //some logic...
    }
}

ControllerExample.cs

// Just an example of using AppAuthFilter ordering with controller
[AppAuthFilter(Order = FilterOrder.AppAuthFilter1)]
public class OrderController : ControllerBase
{
    [HttpGet]
    public IActionResult Index()
    {
        return Ok();
    }
}

FilterOrder.cs

public enum FilterOrder
{
    AppAuthFilter1 = 1, MyAuthFilter2
}

IAppOrderedFilter.cs

public interface IAppOrderedFilter : IOrderedFilter
{
    new FilterOrder Order { get; set; }
    int IOrderedFilter.Order => (int) Order;
}