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 gzip = require('connect-gzip-static');

var app = express();

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

// uncomment after placing your favicon in /public
//app.use(favicon(__dirname + '/public/favicon.ico'));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());

if (app.get('env') === 'production') {
  var assetsDir = path.join(__dirname, 'public');
  var oneDay = 86400000;

  app.use(gzip(assetsDir, { maxAge: oneDay }));
  app.use(express.static(assetsDir));
} else {
  var browserify = require('browserify-middleware');

  // Javascript settings
  browserify.settings({
    transform: ['babelify', 'reactify']
  });

  var jsPath = path.join(__dirname, 'source', 'javascripts', 'index.js');
  app.use('/javascripts/bundle.js', browserify(jsPath));
  app.use(express.static(path.join(__dirname, 'source')));
}

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) {
    console.log(err.message);

    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;