app.js

const fs = require('fs')
const http = require('http')
const path = require('path')
const methods = require('methods')
const express = require('express')
const bodyParser = require('body-parser')
const session = require('express-session')
const cors = require('cors')
const passport = require('passport')
const errorhandler = require('errorhandler')
const mongoose = require('mongoose')

const isProduction = process.env.NODE_ENV === 'production'

const app = express()

app.use(cors());

app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());

app.use(require('method-override')());
app.use(express.static(__dirname + '/public'));

app.use(session({ secret: 'blog', cookie: { maxAge: 60000 }, resave: false, saveUninitialized: false  }))

if (!isProduction) {
  app.use(errorhandler());
}

if (isProduction) {
  mongoose.connect(process.env.MONGODB_URI);
} else {
  mongoose.connect('mongodb://localhost/blog')
  mongoose.set('debug', true)
}

// Add models here
require('./models/User')
require('./models/Article')
require('./models/Comment')

require('./config/passport')

app.use(require('./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 (!isProduction) {
  app.use(function(err, req, res, next) {
    console.log(err.stack)
    res.status(err.status || 500)
    res.json({'errors': {
      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.json({'errors': {
    message: err.message,
    error: {}
  }});
});

const server = app.listen( process.env.PORT || 3000, function(){
  console.log('Listening on port ' + server.address().port)
});