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');

const fs = require('fs');
const join = require('path').join;
const models = join(__dirname, 'models');

fs.readdirSync(models)
    .filter(file => ~file.search(/^[^\.].*\.js$/))
.forEach(file => require(join(models, file)));

const mongoose = require('mongoose');
mongoose.connect("mongodb://localhost/bd");

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

var app = express();
var server = require('http').Server(app);
var io = require('socket.io')(server);

io.on('connection', function (socket) {
    var address = socket.handshake.address;
    console.log('New connection from ' + address);
});


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

app.use(function(req, res, next){
    res.io = io;
    next();
});

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

app.use('/', routes);
app.use('/donator', donator);
app.use('/patient', patient);

// 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: app, server: server};