app.js

require('dotenv').config();
const createError = require('http-errors');
const express = require('express');
const path = require('path');
const cookieParser = require('cookie-parser');
const logger = require('morgan');
const mongoose = require('mongoose');

const viewsRouter = require('./routes/views');
const apiRouter = require('./routes/api/api');

const app = express();

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

// database setup
mongoose.connect(`mongodb://${process.env.DB_URI}`, {
  useNewUrlParser: true,
  useCreateIndex: true,
  useFindAndModify: false,
  user: process.env.DB_USER,
  pass: process.env.DB_PASS,
}).then(() => {
  console.log('Connected to database');
}).catch((err) => {
  console.error(`Could not connect to database. Exiting...\n${err}`);
  process.exit(1);
});

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/stylesheets/', express.static(path.join(__dirname, 'node_modules/bootstrap/dist/css/')));
app.use('/javascripts/', express.static(path.join(__dirname, 'node_modules/jquery/dist/')));
app.use('/javascripts/', express.static(path.join(__dirname, 'node_modules/popper.js/dist/umd/')));
app.use('/javascripts/', express.static(path.join(__dirname, 'node_modules/bootstrap/dist/js/')));

app.use('/', viewsRouter);
app.use('/api', apiRouter);

// catch 404 and forward to error handler
app.use((_req, _res, next) => {
  next(createError(404));
});

// error handler
app.use((err, req, res) => {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

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

module.exports = app;