Flatwhite.RevalidateAttribute

Use this attribute to decorate on a method where you want to re-validate a specific cache entry after a method is invoked. We decorate the method with this attribute, provided a list of reference keys to validate cache entries when method is called:

public interface IUserService
{
    [OutputCache(Duration = 2, StaleWhileRevalidate = 2, VaryByParam = "userId", RevalidateKeyFormat = "User_{userId}")]
    object GetById(Guid userId);

    [OutputCache(Duration = 2, VaryByParam = "userId", RevalidateKeyFormat = "User_{userId}")]
    Task<object> GetByIdAsync(Guid userId);       

    [Revalidate("User_{userId}")]
    void DisableUser(Guid userId);        
}