Hasvi-Backend.js

//Required libraries
var express = require('express');
var path = require('path');
var logger = require('morgan');
var bodyParser = require('body-parser');
var engine = require('express-dot-engine');
var versionDebug = require('./util/VersionDebug');

//The URL route events
var routes = require('./routes/index');

//create an express-based app
var app = express();

//view engine setup - using the "dot" engine
app.engine('dot', engine.__express);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'dot');

//Other node.js setup stuff
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(express.static(path.join(__dirname, 'public')));

//Declare the URL routes and map to events
app.use('/', routes);
app.use('/insertData', routes);
app.use('/views/:username/:id', routes);

// error handlers

// development error handler
// will print stacktrace
if (!versionDebug.iot_onAWS()) {
    function errorHandler(err, req, res, next) {
        if (res.headersSent) {
            return next(err);
        }
        res.status(500);
        res.render('error', {
            message: err,
            error: {},
            version: versionDebug.iot_getVersion()
        });
    }
}
else {
    // production error handler
    // no stacktraces leaked to user
    function errorHandler(err, req, res, next) {
        if (res.headersSent) {
            return next(err);
        }
        res.status(500);
        res.render('error', {
            message: {},
            error: {},
            version: versionDebug.iot_getVersion()
        });
    }
}

// catch 404 and forward to error handler
//app.use(function (req, res, next) {
//    res.header('Status' , "404");
//    res.status(404);
//});
app.use("*", function (req, res) {
    res.status(404).send('404');
});

//Export functions in this file
module.exports = app;