Running a background listener.

Hello everyone! I have basic lua knowledge, so, no need to be babied. I am writing a custom HTTP API for a server that does not have it enabled. I am not going into the details on how it works because it is proprietary. I need to have a program in the background listening for a file to appear. When it does so, I need to fire a custom event. Is this possible?

Sure, just use os.queueEvent to add your custom event to the queue. I'm curious as to how you're going to get around the http API being disabled. I can't think of any way with just CC on a server to actually get web page data if it isn't enabled.