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server.js
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server.js
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const express = require('express');
const ejs = require('ejs');
const expressLayouts = require('express-ejs-layouts');
const path = require('path');
const mongoose = require('mongoose');
const session = require('express-session');
const dotenv = require('dotenv');
const flash = require('express-flash');
const MongoDbStore = require('connect-mongo')(session);
const passport = require('passport');
const Emitter = require('events');
dotenv.config();
const app = express();
// Database connection
mongoose.connect(process.env.MONGODB_URI, { useNewUrlParser: true, useCreateIndex: true, useUnifiedTopology: true, useFindAndModify: true });
const connection = mongoose.connection;
connection.once('open', () => {
console.log('connection with DB successfully established');
}).catch(err => {
console.log('Error occured while connecting to DB ', err);
});
// Session store
let mongoStore = new MongoDbStore({
mongooseConnection: connection,
collection: 'sessions'
})
app.use(session({
secret: process.env.SECRET,
resave: false,
store: mongoStore,
saveUninitialized: false,
cookie: { maxAge: 1000 * 60 * 60 * 24 } // for a day ie; 24 hours in milliseconds
}))
const passportInit = require('./app/config/passport');
passportInit(passport);
app.use(passport.initialize());
app.use(passport.session());
app.use(flash());
app.use(express.static('public'));
app.use(express.urlencoded({ extended: false }))
app.use(express.json())
// Global middlewares
app.use((req, res, next) => {
res.locals.session = req.session;
res.locals.user = req.user;
next();
})
// setting template engine
app.use(expressLayouts);
app.set('views', path.join(__dirname, '/resources/views'));
app.set('view engine', 'ejs');
// Routes
require('./routes/web')(app);
const PORT = process.env.PORT || 5000;
const server = app.listen(PORT, () => {
console.log(`Server running on PORT ${PORT}`);
})
// Event emitter
const eventEmitter = new Emitter();
app.set('eventEmitter', eventEmitter);
// socket
const io = require('socket.io')(server);
io.on('connection', (socket) => {
console.log(socket.id);
socket.on('join', (orderId) => {
console.log(orderId);
socket.join(orderId);
})
})
eventEmitter.on('orderUpdated', (data) => {
io.to(`order_${data.id}`).emit('orderUpdated', data);
})
eventEmitter.on('orderPlaced', (data) => {
io.to('adminRoom').emit('orderPlaced', data);
})