How to set Duration dynamically for ResponseCacheAttribute - asp.net-core

Question

I have a .Net Core 3.1 Web Api application and use the ResponseCache attribute on a controller action.
[HttpGet]
[ResponseCache(Location = ResponseCacheLocation.Any, Duration = 30, VaryByQueryKeys = new[] { "id"})]
public string Get([FromQuery] int id)
{...}
While this is working fine with the hardcoded value for Duration, I need to set this dynamically from the config somehow.
I already tried:
Configuring it in Response Caching Middleware, but then it applies to all controller actions.
Deriving from ResponseCacheAttribute does not work, as it's internal.
Is there a simple way to achieve what I want, or do I have to write the whole thing (custom ResponseCacheAtrribute + ResponseCacheFilter + ResponseCacheFilterExecutor) by myself ?

Answer 1

I make a new attribute which inherits from the ResponseCacheAttribute which adds most of what I need. For example -
public class ResponseCacheTillAttribute : ResponseCacheAttribute
{
public ResponseCacheTillAttribute(ResponseCacheTime time = ResponseCacheTime.Midnight)
{
DateTime today = DateTime.Today;
switch (time)
{
case ResponseCacheTime.Midnight:
DateTime midnight = today.AddDays(1).AddSeconds(-1);
base.Duration = (int)(midnight - DateTime.Now).TotalSeconds;
break;
default:
base.Duration = 30;
break;
}
}
}
The Enum looks like
public enum ResponseCacheTime
{
Midnight
}
This allows me to build in specific times that I may need. I haven't fully tested this but confirmed I see the information in the response output.
You should be able to add any arguments or information you need into the attribute.