app.js

const express = require('express');
const path = require('path');
const cookieParser = require('cookie-parser');
const logger = require('morgan');
const cors = require('cors');
const session = require('express-session');
const mongo = require('connect-mongo')(session);
const mongoose = require('mongoose');
require('dotenv').config();

const authRouter = require('./routes/auth');

mongoose.connect(process.env.MONGODB, {
  keepAlive: true,
  reconnectTries: Number.MAX_VALUE,
  useFindAndModify: false,
  useNewUrlParser: true
})
.then(() => console.log('🚀 Connected to database!'))
.catch((error) => console.error(error));

const app = express();

app.use(
  cors({
    credentials: true,
    origin: process.env.PUBLIC_DOMAIN,
  }),
);
app.use(
  session({
    store: new mongo({
      mongooseConnection: mongoose.connection,
      ttl: 24 * 60 * 60,
    }),
    secret: process.env.SECRET_SESSION,
    resave: true,
    saveUninitialized: true,
    cookie: { maxAge: 24 * 60 * 60 * 1000, },
  }),
);
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('/auth', authRouter);

app.use((req, res) => res.status(404).json({ code: 'not found' }));
app.use((err, req, res) => !res.headersSent 
  && res.status(err.status || '500').json(err));

module.exports = app;