memfile.js

revision 0.0.1

Overview

An in-memory file cache written for instructional purposes.

Examples

var http = require("http"),
	path = require("path"),
	memfile = require("memfile"),
	mimetype = require("mimetype");

var file_list = [ 
	"htdocs/favicon.png", 
	"htdocs/clock.html", 
	"htdocs/js/clock.js", 
	"htdocs/clock.css"
];

file_list.forEach(function (filename) {
	// Remember the files, mime type, and update if it changes
	memfile.setSync(filename, {
		mime_type: mimetype.lookup(filename), 
		on_change: true});
});

// Create the web server serving the clock web site
console.log("Starting web server)
http.createServer(function (req, res) {
	var file;

	// Handle special case urls	
	if (req.url === "/" || req.url === "/index.html") {
		req.url = "/clock.html";
	} else if (req.url === "/favicon.ico") {
		req.url = "/favicon.png";
	}

	file = memfile.get(path.join("htdocs", req.url));
	if (file === true) {
		res.writeHead(200, {"Content-Type": file.mime_type)});
		res.end(file.buf);
	} else {
		res.writeHead(404, {"Content-Type": "text/plain"});
		res.end(req.url + " not found.");
	}
}).listen(8080, "localhost");