app.js

var createError = require('http-errors');
var express = require('express');
var path = require('path');
var app = express();
const winston = require('winston');
var logger = require('morgan');
var express = require('express');
var cookieParser = require('cookie-parser');
var cors = require('cors');

app.use(express.json());
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(logger('dev'));
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use(cors());
require('./startUp/loggingError')();
require('./startUp/routes')(app);
require('./startUp/databaseConnection')();
require('express-async-errors');

app.use(function(req, res, next) {
  next(createError(404));
});
app.use(function(err, req, res, next) {
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  res.status(err.status || 500);
  res.render('error');
});

const port = process.env.PORT || 3000; 
app.listen(port, () => {
    console.log(`Listen port ${port}`);
    winston.info(`Listen port ${port}`);
});

module.exports = app;