node_express_middleware_simple.js

/**                                                                                                                                                                               
 * @overview                                                                                                                                                                      
 *                                                                                                                                                                                
 * @author Caesar Chi                                                                                                                                                             
 * @blog clonn.blogspot.com                                                                                                                                                       
 * @version 2012/02/27                                                                                                                                                            
 */   

var express = require('express'),
    app = express.createServer(),                                                                                                                                                 
    port = 1337;

function middleHandler(req, res, next) {
    console.log("execute middle ware");
    next();
}

app.use(function (req, res, next) {
    console.log("first middle ware");                                                                                                             
    next();
});

app.use(function (req, res, next) {
    console.log("second middle ware");                                                                                                             
    next();
});

app.get('/', middleHandler, function (req, res) {
    console.log("end middleware function");
    res.send("page render finished");
});

app.listen(port);
console.log('start server');