Add solutions for introductory NodeJS

graduta · Nov 21, 2023 · 1910f8f · 1910f8f
1 parent 3572fdf
commit 1910f8f
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Showing 3 changed files with 52 additions and 1 deletion.
diff --git a/0-Introductory-Exercises/index.js b/0-Introductory-Exercises/index.js
@@ -1 +1,29 @@
-// Your code goes here
+// Your code goes here
+
+const {HttpServer, WebSocket, WebSocketMessage, Log} = require('@aliceo2/web-ui');
+
+const logger = new Log('workshop-2023');
+
+const http = new HttpServer({
+  port: 8080
+}, {
+  expiration: '60s'
+});
+
+http.addStaticPath('public');
+
+http.get('/hello-world', (_, res) => {
+  res.status(200).json({message: 'Hello World!'});
+}, {public: true});
+
+http.get('/hello-private', (_, res) => {
+  res.status(200).json({message: 'Hi, there'})
+});
+
+const ws = new WebSocket(http);
+
+ws.bind('hello', (message) => {
+  console.log('Server received:', message);
+  logger.info('test')
+  return new WebSocketMessage().setCommand('hello-back').setPayload("hello back");
+});
diff --git a/0-Introductory-Exercises/public/index.html b/0-Introductory-Exercises/public/index.html
@@ -0,0 +1,6 @@
+<html>
+  <body>
+    <h1> Hello World!</h1>
+  </body>
+  <script src="./index.js" type="module"></script>
+</html>
diff --git a/0-Introductory-Exercises/public/index.js b/0-Introductory-Exercises/public/index.js
@@ -0,0 +1,17 @@
+ // Little hack to get token from URL
+ const url = new URL(window.location);
+ const token = url.searchParams.get('token');
+
+ // Connect to WebSocket
+ let webSocketConnector = new WebSocket('ws://localhost:8080?token=' + token);
+
+ // Send message when connection open
+ webSocketConnector.onopen = function () {
+   console.log('Connected');
+   webSocketConnector.send('{"command":"hello", "payload":"hello, world!", "token": "' + token + '"}');
+ };
+ // Send message when connection open
+ webSocketConnector.onmessage = function (message) {
+   console.log(message)
+ };
+