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how can i get run time in javascript?

I wrote the code to receive data from the device using serial communication device with window.
I can see Continuous data in Console window in eclipse and save data in txt file.
Data transfer continues until the port is disconnected
I want to see time that Data is transmitted .
Finally, I want to get a time-data graph , so Time data is needed
How do I write code? The code below is the code I wrote
/**
* Module dependencies.
*/
var express = require('express')
, routes = require('./routes')
, user = require('./routes/user')
, http = require('http')
, path = require('path');
var app = express();
var SerialPort = require('serialport');
var UrlParser = require('url');
var fs = require('fs');
var readline = require('readline');
// all environments
app.set('port', process.env.PORT || 3000);
app.set('views', __dirname + '/views');
app.set('view engine', 'ejs');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(app.router);
app.use(express.static(path.join(__dirname, 'public')));
// development only
if ('development' == app.get('env')) {
app.use(express.errorHandler());
}
app.get('/', routes.index);
app.get('/users', user.list);
http.createServer(app).listen(app.get('port'), function(){
console.log('Express server listening on port ' + app.get('port'));
});
var port = new SerialPort("COM32" , {
baudRate:9600,
});
port.on("open" , function(){
console.log('open success');
});
port.on('data', function(data) {
converted_data = parseFloat(data);
console.log(converted_data);
fs.appendFile('TestDB.sql',converted_data + '\r\n',function(err) {
if(err)
console.log(err);
else
console.log('data->db');
});
});
port.write("mon 1\n", function(){
console.log('write to device');
});
app.get('/data', function (req,res) {
res.redirect('http://localhost:3000/data.html');

node.js TypeError: Object has no method get

I'm trying to separate server initiation and other calls from the core file(app.js) but when I try to run it, it issues me error that
http.createServer(app).listen(app.get('port'), function(){
^
TypeError: Object function (){ all code from app.js file }
has no method 'get'
This is app.js file.
/**
* Module dependencies.
*/
module.exports = function(){
var express = require('express');
var routes = require('./routes');
var path = require('path');
var app = express();
// all environments
app.set('port', process.env.PORT || 4000);
app.set('views', __dirname + '/views');
app.set('view engine', 'jade');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(app.router);
app.use(express.static(path.join(__dirname, 'public')));
// development only
if ('development' == app.get('env')) {
app.use(express.errorHandler());
}
app.get('/', routes.index);
return app;
};
and this is server.js file.
var http = require('http'),
app = require('./app');
http.createServer(app).listen(app.get('port'), function(){
console.log('Express server listening on port ' + app.get('port'));
});
using express#3.4.0
what am I missing OR doing wrong.. please help.

You have no reason to return a function into your app.js file, just return the express object:
var express = require('express');
var app = express();
// ... more variables
// ... the rest of your code
module.exports = app;
Then, the rest of your code into server.js will work fine.
Remember that module.exports works like a "return" into CommonJS (and therefore NodeJS).
See documentation.

You're passing a function to module.exports, so when you require('./app'), you need to call it like a function:
var http = require('http'),
app = require('./app')();
http.createServer(app).listen(app.get('port'), function(){
console.log('Express server listening on port ' + app.get('port'));
});

How can I mount MVC nodejs + express

I have a nodejs + express project. I want to mount controller and view, but I dont know how.
In my app.js I have var stats = require('./controllers/stats'); and app.use(stats);
My folder controllers: stats/index.js and my views: stats/index.jade.
when I try to access localhost:1200/stats --> Cannot GET /stats
Are routes needed?
I use express"3.2.6"
My app.js
/**
* Module dependencies.
*/
var express = require('express')
, routes = require('./routes')
, user = require('./routes/user')
, http = require('http')
, path = require('path');
var app = express();
//modulos
**var stats = require('./controllers/stats');**
// all environments
app.set('port', process.env.PORT || 3000);
app.set('views', __dirname + '/views');
app.set('view engine', 'jade');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(app.router);
app.use(express.static(path.join(__dirname, 'public')));
// development only
if ('development' == app.get('env')) {
app.use(express.errorHandler());
}
app.get('/', routes.index);
app.get('/users', user.list);
//rutas
**app.use(stats);**
var server = app.listen(1200);
console.log('Express server listening on port 1200');
In my controller
var express = require('express');
var app = module.exports = express();
app.set('views', __dirname + '/views');
app.get('/views/stats', function(request, response) {
response.render('index', {
title: 'Estamos en el controlador stats'
});
});
In my view
extends layout
block content
h1= title
p Welcome to #{title}
p esta es la vista del controlador Stats

Here's the complete solution. Since this is a valid question I faced long ago, I give you the whole code. But whether to understand it or not is left to you.
In app.js
var config = require('./config/config.js');
var express = require('express');
var app = express();
config.setConfig(app, express);
if (config.requestMethod == 'HTTPS') {
var request = require('https');
var options = [config.httpsOptions, app];
} else if(config.requestMethod == 'HTTP') {
var request = require('http');
var options = [app];
}
require('./config/db.js');
var server = request.createServer.apply(this, options).listen(app.get('port'), function() {
console.log("Server started");
});
require('./route/router')(app);
In /config/config.js
var fs = require('fs');
module.exports = {
port: 8443,
mode: 'development',
requestMethod: 'HTTP',
httpsOptions: {
key: fs.readFileSync('/etc/apache2/ssl/server.key'),
cert: fs.readFileSync('/etc/apache2/ssl/server.crt'),
requestCert: false,
rejectUnauthorized: false
},
setConfig: function(app, express) {
app.set('port', process.env.PORT || module.exports.port);
app.set('view engine', 'jade');
app.use(express.favicon());
//app.use(express.logger('dev'));
app.use(express.json());
app.use(express.urlencoded());
app.use(express.methodOverride());
app.use(app.router);
}
};
If it is HTTP only, you can remove HTTPS related options.
in /config/db.js
var mongo = require('mongoskin');
var MONGODB_HOST = "localhost";
var MONGODB_PORT = "27017";
var MONGODB_DATABSE = "dbname";
var MONGODB_USER_RW_NAME = "dbuser";
var MONGODB_USER_RW_PASS = "admin";
var db = mongo.db('mongodb://'+MONGODB_USER_RW_NAME+':'+MONGODB_USER_RW_PASS+'#'+MONGODB_HOST+':'+MONGODB_PORT+'/'+MONGODB_DATABSE, {safe: false});
var Tracking = require('../model/tracking.js');
GLOBAL.db = db;
GLOBAL.HOST = 'localhost';
GLOBAL.HEADER_MATCH = /localhost/i;
GLOBAL.ROOT_PATH = '/site/index.php/';
GLOBAL.Tracking = Tracking.construct(db);
Tracking is a custom model I wrote. You will see the code later.
In /route/router.js
router = function(app) {
var routes = {
'POST /test/link': 'testController.test'
};
var loadedControllers = {};
for(var i in routes) {
var requestMethod = i.split(' ')[0].toLowerCase();
var routeURL = i.split(' ')[1];
var controller = routes[i].split('.')[0];
var method = routes[i].split('.')[1];
if (loadedControllers[controller]) {
var loadControl = loadedControllers[controller];
} else {
var loadControl = require('../controller/' + controller);
loadedControllers[controller] = loadControl;
}
app[requestMethod](routeURL, loadControl[method]);
}
};
module.exports = router;
As and when you add a new URL, or API, you need to add one entry in routes object linking URL to a controller.
In /controller/testController.js,
exports.test = function(req, res) {
//Your code
};
In /model/Tracking/js,
exports.construct = function(db) {
var _Tracking = function(data) {
this.info = {
_id: data && data._id || null,
value: data.value || 0
};
_Tracking.test = function(id, cb) {
//your code involving db
cb(); //Send parameters to callback if necessary
//Call this function from controller directly using Tracking.test
};
return _Tracking;
};
That's it. You can build on top of this.

First of all I need three folders in the root of my app.
models
views
controllers
Now on to the app.js
var express = require('express');
,http = require('http');
,path = require('path');
,app = express();
,fs = require('fs');
// database connection
var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/mydb');
// some environment variables
app.set('port', process.env.PORT || 3000);
app.set('views', __dirname + '/views');
app.set('view engine', 'jade');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(express.cookieParser('your secret here'));
app.use(express.session());
app.use(app.router);
app.use(express.static(path.join(__dirname, 'public')));
// dynamically include routes (Controller)
fs.readdirSync('./controllers').forEach(function (file) {
if(file.substr(-3) == '.js') {
route = require('./controllers/' + file);
route.controller(app);
}
});
http.createServer(app).listen(app.get('port'), function(){
console.log('Express server listening on port ' + app.get('port'));
});
Here is an example that I place in controllers/users.js
var mongoose = require('mongoose')
var Video = require('../models/user');
module.exports.controller = function(app) {
/**
* a home page route
*/
app.get('/signup', function(req, res) {
// any logic goes here
res.render('users/signup')
});
/**
* About page route
*/
app.get('/login', function(req, res) {
// any logic goes here
res.render('users/login')
});
}
res.render('users/signup') which results in the view being loaded from views/users/signup.jade in this app.
Finally, for reference, here is what the model in models/user.js may look like:
Var mongoose = require('mongoose')
,Schema = mongoose.Schema
userSchema = new Schema( {
username: String,
password: String
}),
User = mongoose.model('user', userSchema);
module.exports = User;

Using Socket.io with Node.js, Express and Jade

I have some trouble to use Socket.io even just to test if a client is connected. I've tried many things and I think that my mistake is, maybe, when I do the app.get function. I have also tried to do this in an route js file but it wasn't conclusive neither. So here are my different codes :
App.js
/**
* Module dependencies.
*/
var express = require('express');
var routes = require('./routes');
var user = require('./routes/user');
var http = require('http');
var path = require('path');
var mongo = require('mongodb');
var monk = require('monk');
var db = monk('mongodb://xxxxx:xxxxx#ds051067.mongolab.com:51067/jdo');
var app = express(),
server = http.createServer(app) ,
io = require('socket.io').listen(server);
// all environments
app.set('port', process.env.PORT || 3000);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.json());
app.use(express.urlencoded());
app.use(express.methodOverride());
app.use(express.cookieParser('This is secret'));
app.use(express.session());
app.use(app.router);
app.use(express.static(path.join(__dirname, 'public')));
// development only
if ('development' == app.get('env')) {
app.use(express.errorHandler());
}
io.sockets.on('connection', function (socket) {
console.log('Un client est connecté !');
});
// app.get('/', routes.index);
app.get('/users', user.list);
app.get('/deplacement',routes.deplacement);
app.get('/monCompte', routes.compte);
app.get('/connexion', routes.connexion);
app.get('/', function(req, res) {
res.render('index.jade');
});
server.listen(app.get('port'), function(){
console.log('Express server listening on port ' + app.get('port'));
});
Index.jade
extends layout
block content
script(src="/socket.io/socket.io.js").
var socket = io.connect('http://localhost:3000');
});
PS : Sorry if my english is bad ^^

You can't use inline javascript in the same script tag as an included script.
extends layout
block content
script(src="/socket.io/socket.io.js")
script.
var socket = io.connect('http://localhost:3000');

app..get() does not seem to work in the Node.js Express application

Here is the app.js file:
var express = require('express'),
routes = require('./routes'),
api = require('./routes/api.js'),
http = require('http'),
path = require('path');
var app= module.exports = express();
/**
* Configuration
*/
// all environments
app.set('port', process.env.PORT || 3001);
app.set('views', __dirname + '/views');
app.set('view engine', 'jade');
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(express.static(path.join(__dirname, 'public')));
app.use(app.router);
// development only
if (app.get('env') === 'development') {
app.use(express.errorHandler());
}
// production only
if (app.get('env') === 'production') {
// TODO
};
/**
* Routes
*/
// serve index and view partials
app.get('/', routes.index);
// redirect all others to the index (HTML5 history)
app.get('*', routes.index);
api(app);
/**
* Start Server
*/
http.createServer(app).listen(app.get('port'), function () {
console.log('Express server listening on port ' + app.get('port'));
});
Here is the routes/api.js file:
var queryObj = {
retrieve:{
api_path:'/api/test/list',
var_name:''
}
};
// All supporting functions used below are defined here !
module.exports = function(app) {
_.each(queryObj, function(obj) {
console.log("Check point 1");
var args = [obj.api_path, function(req, res){
var search_term = obj.var_name ? req.params[obj.var_name] : '';
get(search_term,res);
}];
console.log("Check point 2");
console.log("args:" + args);
app.get.apply(app,args);
});
};
Here is the routes/index.js file:
/*
* GET home page.
*/
exports.index = function(req, res){
console.log("Default view");
res.render('index');
};
So when i run this application and type localhost:3001/api/test/list in the browser, i get follwing output on the console:
Check point 1
Check point 2
`args: args:/api/alarms/list,function (req, res){
var search_term = obj.var_name ? req.params[obj.var_name] : '';
get(search_term,res);
}`
Express server listening on port 3001
Default view
My question is: why is app.get.apply() not working? Instead the default route configured in app.js is taken up!

I think you need to change the order of your route definitions: from most specific (in this case api/test/list to less specific *:
// defined api
api(app);
// serve index and view partials
app.get('/', routes.index);
// redirect all others to the index (HTML5 history)
app.get('*', routes.index);