Create chat.js

chat.js

@@ -0,0 +1,36 @@
+const express = require('express');
+const app = express();
+const http = require('http');
+const server = http.createServer(app);
+const path = require('path');
+const { Server } = require('socket.io');
+const io = new Server(server);
+
+app.use(express.static(path.resolve(__dirname + './public')));
+
+app.get('/', (req, res) => {
+    res.sendFile(path.resolve(__dirname + './public/index.html'));
+});
+
+io.on('connection', (socket) => {
+    console.log(socket.handshake.query.name + " connected!");
+    io.emit('connection notification', socket.handshake.query.name);
+    socket.on('disconnect', () => {
+        socket.broadcast.emit('finish typing', socket.handshake.query.name);
+        console.log(socket.handshake.query.name + " disconnected!");
+        io.emit('disconnection notification', socket.handshake.query.name);
+    });
+    socket.on('chat message', (msg) => {
+        socket.broadcast.emit('chat message', msg);
+    });
+    socket.on('typing', () => {
+        socket.broadcast.emit('typing', socket.handshake.query.name);
+    });
+    socket.on('finish typing', () => {
+        socket.broadcast.emit('finish typing', socket.handshake.query.name);
+    });
+});
+
+server.listen(3000, () => {
+    console.log('Listening on *: 7080');
+});