Add BeforeRouting and AfterRouting EventHandlers to Router

[scottoffen]

Desired Result

public delegate RoutingEventHandler(IHttpContext context);

RoutingEventHandler handler = ctx => { /* do something */ };

router.BeforeRouting += handler;
router.AfterRouting += handler;

• BeforeRouting event is fired prior to any routes being invoked
• BeforeRouting delegates are invoked in the order they are added
• AfterRouting event is fired after all routes have been invoked
• AfterRouting delegates are invoked in the reverse order they are added
• exceptions throw by delegates will be re-thrown in an AggregateException

[scottoffen]

Forgot that last bullet point...