Execute your code after a request is handled.
Every Vely request goes through a request dispatcher (i.e.
vely_dispatch_request() function). In order to specify your code to execute after a request is handled, create a source file "_after.v" and implement a function "void _after()", which will be automatically picked up and compiled with your application.
If no request executes (for example if your application does not handle a given
request), after-request handler does not execute either. If you use
exit-request to exit current request handling, after-request handler still executes.
Here is a simple implementation of after-request handler that just outputs "Hi there!!":
#include <vely.h>
void _after()
{
@Hi there!!
}