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Advanced Node and Express - Handle a Disconnect
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'use strict'; | |
require('dotenv').config(); | |
const express = require('express'); | |
const myDB = require('./connection'); | |
const fccTesting = require('./freeCodeCamp/fcctesting.js'); | |
const session = require('express-session'); | |
const passport = require('passport'); | |
const routes = require('./routes.js'); | |
const auth = require('./auth.js'); | |
const app = express(); | |
const http = require('http').createServer(app); | |
const io = require('socket.io')(http); | |
app.set('view engine', 'pug'); | |
app.set('views', './views/pug'); | |
app.use(session({ | |
secret: process.env.SESSION_SECRET, | |
resave: true, | |
saveUninitialized: true, | |
cookie: { secure: false } | |
})); | |
app.use(passport.initialize()); | |
app.use(passport.session()); | |
fccTesting(app); // For fCC testing purposes | |
app.use('/public', express.static(process.cwd() + '/public')); | |
app.use(express.json()); | |
app.use(express.urlencoded({ extended: true })); | |
myDB(async client => { | |
const myDataBase = await client.db('database').collection('users'); | |
routes(app, myDataBase); | |
auth(app, myDataBase); | |
let currentUsers = 0; | |
io.on('connection', (socket) => { | |
++currentUsers; | |
io.emit('user count', currentUsers); | |
console.log('A user has connected'); | |
socket.on('disconnect', () => { | |
console.log('A user has disconnected'); | |
--currentUsers; | |
io.emit('user count', currentUsers); | |
}); | |
}); | |
}).catch(e => { | |
app.route('/').get((req, res) => { | |
res.render('index', { title: e, message: 'Unable to connect to database' }); | |
}); | |
}); | |
const PORT = process.env.PORT || 3000; | |
http.listen(PORT, () => { | |
console.log(`Listening on port ${PORT}`); | |
}); |
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