react is working

README.md

@@ -1,11 +1,15 @@
-# Serverless Microapp
+# Serverless React App
+Domain: `cf.neweradesign.net`
 
 ## Client Hosted on Cloudflare Workers
+- uses Wrangler for orchestration
 - uses itty-router for Express-like routing
-- uses handlebars for views engine
+- uses React for client side framework
+- uses custom webpack config for build
 - 100,000 free requests per day
 
 ## Server Hosted on AWS Lambda
+- uses AWS CDK for orchestration
 - uses node engine
 - best for database operations (i.e. working with MongoDB)
 - 10,000 free requests per day

client/package.json

@@ -5,25 +5,30 @@
   "description": "tech tools hosted on cloudflare worker",
   "main": "index.js",
   "scripts": {
-    "build": "npm run compilehbs && npm run transpilehbs && rm src/*-original.js",
-    "compilehbs": "handlebars -e hbs -f src/pages-original.js src/views/pages/ && handlebars -e hbs -p -f src/partials-original.js src/views/partials/",
+    "build": "webpack",
     "deploy": "wrangler deploy src/index.js",
     "prepare": "husky",
-    "start": "wrangler dev src/index.js",
-    "test": "echo \"Error: no test specified\" && exit 1",
-    "transpilehbs": "hbs-import-transpile src/pages-original.js > assets/pages.js && hbs-import-transpile src/partials-original.js > assets/partials.js"
+    "start": "wrangler dev src/index.js"
   },
-  "type": "module",
   "author": "",
   "license": "ISC",
   "devDependencies": {
-    "hbs-import-transpile": "^1.0.4"
+    "@babel/core": "^7.24.8",
+    "@babel/preset-env": "^7.24.8",
+    "@babel/preset-react": "^7.24.7",
+    "babel-loader": "^9.1.3",
+    "css-loader": "^7.1.2",
+    "file-loader": "^6.2.0",
+    "style-loader": "^4.0.0",
+    "webpack": "^5.93.0",
+    "webpack-cli": "^5.1.4"
   },
   "dependencies": {
+    "@cloudflare/kv-asset-handler": "^0.3.4",
     "buffer": "^6.0.3",
-    "handlebars": "^4.7.8",
-    "hbs-async-render": "^1.0.1",
     "itty-router": "^2.6.6",
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1",
     "serverless-cloudflare-workers": "^1.2.0"
   }
 }

client/src/App.jsx

@@ -0,0 +1,34 @@
+import React, { useState } from 'react';
+import logo from '../public/cloudflare.svg'
+import { Header } from "./components/Header/Header";
+import { Footer } from "./components/Footer/Footer";
+
+export const App = () => {
+  const [count, setCount] = useState(0);
+  const tester = "Victor E";
+
+  return (
+    <div className="container">
+      <Header />
+      <div className="row">
+        <div className="col-12">
+          <div>
+            <div>
+              <img src={logo} width="300"/>
+            </div>
+          </div>
+          <h1>Hello, Cloudflare Workers!</h1>
+          <h3>This is a basic React page deployed on Cloudflare Workers.</h3>
+          <p>
+            <strong>Your name:</strong> { tester }
+          </p>
+          <pre>{ tester }</pre>
+
+          <p>Count: { count }</p>
+          <button type="button" onClick={ () => setCount(count + 1) }>Increase</button>
+        </div>
+      </div>
+    <Footer />
+    </div>
+  );
+};

client/src/components/Footer/Footer.jsx

@@ -0,0 +1,5 @@
+export const Footer = () => (
+  <footer style={{marginTop: "100px", padding: "30px"}} className='bg-light'>
+    Footer component.
+  </footer>
+);

client/src/components/Header/Header.jsx

@@ -0,0 +1,7 @@
+export const Header = () => (
+  <nav className="navbar navbar-light bg-light mb-20">
+    <div className="container-fluid">
+      <span className="navbar-brand h1">Cloudflare React Worker</span>
+    </div>
+  </nav>
+);

client/src/index.js

@@ -1,29 +1,34 @@
-import { Router } from 'itty-router'
-import { base64Handler, postHandler, rootHandler } from './routers'
-import { registerHBHelper } from './utils/hbsAsyncHelper.js'
-import '../assets/pages.js';
-import '../assets/partials.js';
+import { Router } from 'itty-router';
+import * as routes from "./routers";
 
-// Register HB
-registerHBHelper();
-
-// Create a new router
 const router = Router();
-router.get("/", rootHandler);
+
+const { base64Handler, healthHandler, postHandler, rootHandler, routesAndAssetsHandler } = routes;
+
+/** The rootHandler will serve the React app accordingly
+ * Other routes can be defined as neeeded
+ */
+router.get('/', rootHandler);
+// Health route
+router.get('/health', healthHandler);
+// Test route
 router.get("/base64/:text", base64Handler);
+// Test post route
 router.post("/post", postHandler);
 
 /**
  * This is the last route we define, it will match anything that hasn't hit a route we've defined
  * above, therefore it's useful as a 404 (and avoids us hitting worker exceptions, so make sure
  * to include it!).
-*/
+ */
 router.all("*", () => new Response("404, not found!", { status: 404 }));
 
 /**
- * This snippet ties our worker to the router we defined above, all incoming requests
- * are passed to the router where your routes are called and the response is sent.
-*/
-addEventListener('fetch', (e) => {
-  e.respondWith(router.handle(e.request))
+ * All incoming requests to the worker are passed to the router
+ * where your routes are called and the response is sent.
+ * routesAndAssetsHandler will map assets and routes accordingly
+ */
+addEventListener('fetch', event => {
+  event.respondWith(routesAndAssetsHandler(event, router));
 });
+

client/src/main.js

@@ -0,0 +1,6 @@
+import { App } from './App';
+import { createRoot } from 'react-dom/client';
+
+// Render your React component instead
+const root = createRoot(document.getElementById('root'));
+root.render(<App />);

client/src/routers/handler.js

@@ -0,0 +1,27 @@
+import { getAssetFromKV } from "@cloudflare/kv-asset-handler";
+
+export const routesAndAssetsHandler = async (event, router) => {
+  // Extract the request from the event
+  const request = event.request;
+
+  // Check if the request is for bundle.js
+  if (
+    request.url.endsWith('/bundle.js')
+    || request.url.endsWith('/favicon.ico')
+    || request.url.endsWith('.svg')
+  ) {
+    // Serve the bundle.js file from KV storage
+    try {
+      // Pass the entire event object to getAssetFromKV
+      return await getAssetFromKV(event);
+    } catch (e) {
+      return new Response(`Bundle not found: ${e.message}`, {
+        status: 404,
+        statusText: 'Not Found',
+      });
+    }
+  }
+
+  // For any other requests, handle them with the router
+  return router.handle(request);
+};

client/src/routers/health/router.js

@@ -0,0 +1 @@
+export const healthHandler = () => new Response("success");

client/src/routers/index.js

@@ -1,9 +1,13 @@
 import { base64Handler } from './encoding/base64/router.js';
+import { healthHandler } from './health/router'
 import { postHandler } from './post/router.js';
 import { rootHandler } from './root/router.js';
+import { routesAndAssetsHandler } from './handler';
 
 export {
     base64Handler,
+    healthHandler,
     postHandler,
-    rootHandler
+    rootHandler,
+    routesAndAssetsHandler
 }

client/src/routers/root/router.js

@@ -1,14 +1,25 @@
-import Handlebars from 'handlebars/runtime.js';
-
-import { hbsAsyncRender } from 'hbs-async-render'
-// import { html } from './html';
-
 export const rootHandler = async () => {
-    const output = await hbsAsyncRender(Handlebars, 'body', {name: "Victor E."});
-    return new Response(output, {headers: {'Content-Type': 'text/html'}});
-    // return new Response(html, {
-    //         headers: {
-    //             "Content-Type": "text/html"
-    //         }
-    //     })
+    // const html = ReactDOMServer.renderToString(<App />);
+    return new Response(`
+    <!DOCTYPE html>
+    <html lang="en">
+    <head>
+        <meta charset="UTF-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>React App on Cloudflare Workers</title>
+        <link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.0.1/css/bootstrap.min.css"/>
+        <script crossorigin src="https://unpkg.com/react@18/umd/react.development.js"></script>
+        <script crossorigin src="https://unpkg.com/react-dom@18/umd/react-dom.development.js"></script>
+        <script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.0.1/js/bootstrap.min.js"></script>
+    </head>
+    <body>
+        <div id="root"></div>
+        <script src="bundle.js"></script>
+    </body>
+    </html>
+  `, {
+        headers: {
+            'Content-Type': 'text/html',
+        },
+    });
 };