Create a websocket server and client

server/client.js

@@ -0,0 +1,27 @@
+import WebSocket from 'ws'
+import readline from 'readline'
+import { exit } from 'process'
+
+const rl = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout,
+})
+
+const ws = new WebSocket('ws://localhost:8080')
+
+ws.on('open', function open() {
+  console.log('Connected to the server.')
+})
+
+ws.on('message', function incoming(data) {
+  console.log(`From server: ${data}`)
+})
+
+ws.on('close', function close() {
+  console.log('Disconnected from the server.')
+  exit()
+})
+
+rl.on('line', (input) => {
+  ws.send(input)
+})

server/websocket.js

@@ -0,0 +1,13 @@
+import { WebSocketServer } from 'ws'
+
+const wss = new WebSocketServer({ port: 8080 })
+
+wss.on('connection', function connection(ws) {
+  console.log('Connected to the client.')
+
+  ws.on('message', function incoming(message) {
+    console.log(`From client: ${message}`)
+  })
+
+  ws.send('Hello from server!')
+})