FINAL-PROJECT-BACK-SOCKET/app.js

const express = require('express');
const app = express();
const http = require('http');
const { Server } = require('socket.io');
const cors = require('cors');
const logger = require('morgan');
const helmet = require('helmet');
const formatsLogger = app.get('env') === 'development' ? 'dev' : 'short';

app.use(helmet());
app.use(logger(formatsLogger));
app.use(cors());

const server = http.createServer(app);

const io = new Server(server, {
	cors: {
		origin: '*',
		methods: ['GET', 'POST'],
	},
});

io.on('connection', (socket) => {
	console.log('connect', socket.id);
	socket.emit('me', socket.id);
	socket.on('call', ({ userToCall, signalData, from, name }) => {
		io.to(userToCall).emit('call', { signal: signalData, from, name });
	});
	socket.on('answer', (data) => {
		io.to(data.to).emit('accepted', { signal: data.signal });
	});
});

module.exports = server;