curl http://localhost:3000/toto

gistfile1.js

var express = require('express');
var path = require('path');
var favicon = require('static-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');

var routes = require('./routes/index');
var users = require('./routes/users');

var app = express();

// view engine setup                                                                                                                                                                                             
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(favicon());
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded());
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', routes);
app.use('/users', users);

function logErrors(err, req, res, next) {
    console.error(err.stack);
    next(err);
}

function clientErrorHandler(err, req, res, next) {
    if (req.xhr) {
        res.status(500).send({ error: 'Something blew up!' });
    } else {
        next(err);
    }
}

function errorHandler(err, req, res, next) {
    res.status(500);
    res.render('error', { error: err });
}

app.use(logErrors);
app.use(clientErrorHandler);
app.use(errorHandler);

module.exports = app;