Code files

Chapter05/communicating-with-websockets/websocket-app/server.js

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+'use strict'
+
+const http = require('http')
+const fs = require('fs')
+const ws = require('ws')
+
+const app = fs.readFileSync('public/index.html')
+const server = http.createServer((req, res) => {
+  res.setHeader('Content-Type', 'text/html')
+  res.end(app)
+})
+const wss = new ws.Server({server})
+
+wss.on('connection', (socket) => {
+  socket.on('message', (msg) => {
+    console.log(`Received: ${msg}`)
+    console.log(`From IP: ${socket.upgradeReq.connection.remoteAddress}`)
+    if (msg === 'Hello') socket.send('Websockets!')
+  })
+})
+
+server.listen(8080)