first commit

.gitignore

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+/node_modules

README.md

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+"# smtchat" 

index.js

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+const path = require('path');
+const http = require('http');
+const express = require('express');
+const socketio = require('socket.io');
+
+
+const app = express();
+const server = http.createServer(app);
+const io = socketio(server);
+
+app.use(express.static(path.join(__dirname, 'public')));
+
+
+const users = {};
+
+io.on('connection', socket => {
+    socket.on('new-user-join', user => {
+        users[socket.id] = user;
+        socket.broadcast.emit('user-joined', user);
+        console.log('ne user ' + user);
+    });
+
+    socket.on('send', message => {
+        socket.broadcast.emit('receive', { message: message, user: users[socket.id] });
+    });
+
+    socket.on('disconnect', message => {
+        socket.broadcast.emit('left', { message: message, user: users[socket.id] });
+        delete users[socket.id];
+    })
+})
+
+const PORT = process.env.PORT || 3000;
+
+server.listen(PORT, () => console.log(`Server running on port ${PORT}`));