serve.js

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

http.createServer(function (req, res) {
  var current_path = "." + req.url;
  if(req.url === "/") current_path = "./index.html";
  fs.exists(current_path, function(exists) {
    if(exists) {
      fs.stat(current_path, function(err, stats) {
        if(stats.isFile()) {
          fs.createReadStream(current_path).pipe(res);
        } else {
          res.writeHead(200, {"Content-Type": "text/plain"});
          res.end("Path is not a file.");
        }
      });
    } else {
      res.writeHead(200, {"Content-Type": "text/plain"});
      res.end("Path does not exists.");
    }
  });
}).listen(3000);

console.log("Server is listening on port 3000");
console.log("Server has content of " + process.cwd());