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app.js
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app.js
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require('dotenv').config();
const bcrypt = require('bcryptjs');
const createError = require('http-errors');
const express = require('express');
const path = require('path');
const passport = require('passport');
const session = require('cookie-session');
const cookieParser = require('cookie-parser');
const LocalStrategy = require('passport-local').Strategy;
const mongoose = require('mongoose');
const User = require('./models/User');
// Routes
const indexRouter = require('./routes/index');
const signUpRouter = require('./routes/signUp');
const signInRouter = require('./routes/signIn');
const upgradeRouter = require('./routes/upgrade');
// Database connection
const mongodb = process.env.MONGODB_URL;
mongoose.connect(mongodb, { useUnifiedTopology: true, useNewUrlParser: true });
const db = mongoose.connection;
db.on('error', console.error.bind(console, 'MongoDB connection error: '));
const app = express();
// View engine
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'pug');
// Middlewares
app.use(cookieParser());
app.use(
session({
secret: process.env.SESSION_SECRET,
resave: false,
saveUninitialized: true,
}),
);
passport.use(
new LocalStrategy((username, password, done) => {
User.findOne({ username }, (err, user) => {
if (err) {
return done(err);
}
if (!user) {
return done(null, false, {
field: 'username',
message: 'Incorrect username.',
});
}
bcrypt.compare(password, user.password, (err, isMatch) => {
if (err) return done(err);
if (!isMatch) {
return done(null, false, {
field: 'password',
message: 'Incorrect password',
});
}
return done(null, user);
});
});
}),
);
passport.serializeUser((user, done) => done(null, user.id));
passport.deserializeUser((id, done) =>
User.findById(id, { password: false }, (err, user) => done(err, user)),
);
app.use(passport.initialize());
app.use(passport.session());
app.use(express.urlencoded({ extended: false }));
app.use(express.static(path.join(__dirname, 'public')));
app.use((req, res, next) => {
if (typeof req.user === 'undefined') {
return next();
}
res.locals.currentUser = req.user;
next();
});
// Route Handler
app.use('/', indexRouter);
app.use('/sign-up', signUpRouter);
app.use('/sign-in', signInRouter);
app.use('/upgrade', upgradeRouter);
// 404 Handler
app.use((req, res, next) => next(createError(404)));
// Error handler
app.use((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');
});
app.listen(process.env.PORT || 3000, () =>
console.log('App running on port 3000!'),
);