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 compression = require('compression');

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

var app = express();

//Cors Headers
var CORS = function(req, res, next) {
  res.set('Access-Control-Allow-Origin', '*');
  next();
};
app.use(function(req,res,next){
  res.set('X-Powered-By', 'kaha.co v0.7.0');
  next();
});
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'html');
app.engine('html', require('hbs').__express);

app.use(compression());
app.use(favicon(__dirname + '/public/favicon.ico'));
app.use(logger('dev'));
app.use(bodyParser.json({
  limit: '50mb'
}));
app.use(bodyParser.urlencoded({
  limit: '50mb',
  extended: true
}));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use(CORS);
app.use('/', routes);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
  app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
      message: err.message,
      error: err
    });
  });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
  res.status(err.status || 500);
  res.render('error', {
    message: err.message,
    error: {}
  });
});


module.exports = app;