Re-organize code

server/src/client.js

@@ -0,0 +1,30 @@
+import { stdin, stdout, exit } from 'process'
+import { io } from 'socket.io-client'
+
+stdin.setRawMode(true)
+stdin.resume()
+stdin.setEncoding('utf8')
+
+const socket = io('ws://localhost:3000')
+
+socket.on('open', function open() {
+  console.log('Connected to the server.')
+})
+
+socket.on('message', function incoming(data) {
+  stdout.write(data)
+})
+
+socket.on('close', function close() {
+  console.log('Disconnected from the server.')
+  exit()
+})
+
+stdin.on('data', (key) => {
+  if (key === '\u0003') {
+    socket.close()
+    exit()
+  } else {
+    socket.send(key)
+  }
+})