app.js

import express from 'express';
import path from 'path';
import logger from "morgan";
import createError from 'http-errors';

import indexRouter from './routes/index.js';

// https://flaviocopes.com/fix-dirname-not-defined-es-module-scope/
import { fileURLToPath } from 'url';
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

var app = express();

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

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(express.static(path.join(__dirname, 'public')));

app.use(function(req, res, next) {
  req.getUrl = function() {
    return req.protocol + "://" + req.get('host') + req.originalUrl;
  }
  return next();
});

app.use('/', indexRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

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

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

export default app;