NodeJS

index.js

var server = require("./server");
var router = require("./router");
var requestHandlers = require("./requestHandlers");

var handle = {}
handle["/"] = requestHandlers.start;
handle["/start"] = requestHandlers.start;
handle["/upload"] = requestHandlers.upload;

server.start(router.route , handle);

requestHandlers.js

function start (response) {
	console.log("Request handler 'start' was called.");
	response.writeHead(200 , {"Content-Type": "text/plain"});
	response.write("HOLLO SATRT!");
	response.end();
}

function upload (response) {
	console.log("Request handler 'upload' was called.");
	response.writeHead(200 , {"Content-Type": "text/plain"});
	response.write("HELLO UOLOAD!");
	response.end();
}

exports.start = start;
exports.upload = upload;

router.js

function route (handle , pathname , response) {
	console.log("About to route a request for " + pathname);
	if(typeof handle[pathname] ==="function"){
		return handle[pathname](response);
	} else {
		console.log("No request handler found for " + pathname);
		response.writeHead(200 , {"Content-Type": "text/plain"});
		response.write("404 NOT FOUND!");
		response.end();
	}
}

exports.route = route;

server.js

var http = require("http");
var url = require("url")

function start(route , handle){
	function onRequest(request , response){
		var pathname = url.parse(request.url).pathname;
		console.log("Request for " + pathname + " received.");
		route(handle , pathname , response);
	}

	http.createServer(onRequest).listen(8888);
	console.log("server has started!");
}

exports.start = start;