a simple webserver in node.js

simple-webserver.js

var express = require('express'), app = express.createServer();
var fs = require('fs'), sys = require("sys");
var log = fs.createWriteStream('params.json', {'flags': 'a'});

app.use(express.logger());

app.get('/', function(req, res){
    console.log(req.query);
    log.write(JSON.stringify(req.query));
    res.send('It\'s saved!');
});

app.listen(3000);
console.log('Express server started on port %s', app.address().port);