app.js

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var routes = require('./routes/index');
var settings = require('./settings');
var session = require('express-session');
var MongoStore = require('connect-mongo')(session);
var flash = require('connect-flash');
var Mymqtt = require('./models/mqtt.js');

var multer = require('multer');
var storage = multer.diskStorage({
    destination: function (req, file, cb) {
        cb(null, './public/images/')
    },
    filename: function (req, file, cb) {
        cb(null, file.originalname)
    }
});
var upload = multer({ storage: storage });
var cpUpload = upload.any();

var app = express();
// view engine setup
app.set('port', process.env.PORT || 80);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use(session({
    resave: false,
    saveUninitialized: true,
    secret: settings.cookieSecret,
    key: settings.db,//cookie name
    cookie: {maxAge: 1000 * 60 * 60 * 24 * 30},//30 days
    store: new MongoStore({
        db: settings.db,
        host: settings.host,
        port: settings.port
    })
}));
app.use(flash());
app.use(cpUpload);

routes(app);

app.listen(app.get('port'),function () {
    console.log('Express server listening on port ' + app.get('port'));
})

Mymqtt.get(function (err) {
    if (err) {
        console.log(err);
    }
})