app.js

var express = require('express');
var methodOverride = require('method-override');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var passport = require('passport');
var session  = require('express-session');
var flash = require('express-flash');

var app = express();

// Override with Post Having ?_method=
app.use(methodOverride('_method'));

var web = require('./routes/web');
var api = require('./routes/api');

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

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));

// Body Parser
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use(session({
  secret: process.env.SECRET_KEY
}))
app.use(function(req,res,next){
    res.locals.session = req.session;
    next();
});
app.use(flash());

// Collect Routes
app.use('/', web);
app.use('/api', api);

// 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 handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);

  if (err.status == undefined) {
  	res.render('errors/500', {message: err.message});
  } else {
  	res.render('errors/' + err.status);
  }
});

module.exports = app;