Make page SSR and add request flow description

examples/v7-ef-cloud-fetch/edge-functions/index.js

@@ -6,13 +6,7 @@ export async function handleHttpRequest(request) {
     : undefined;
 
   // Perform a fetch request to the original request URL with the same method, headers, and body.
-  // Specify the 'edgio_serverless' as the origin to fetch the original Cloud Functions response.
-  console.log('fetch', {
-    url: request.url,
-    method: request.method,
-    headers: request.headers,
-    body: requestBody,
-  });
+  // Specify 'edgio_serverless' as the origin to fetch the original Cloud Functions response.
   const cloudFunctionsResponse = await fetch(request.url, {
     edgio: { origin: 'edgio_serverless' },
     method: request.method,
@@ -23,9 +17,9 @@ export async function handleHttpRequest(request) {
   // Convert the response to text format.
   let responseText = await cloudFunctionsResponse.text();
 
-  // Replace certain phrases in the response text to indicate processing by Edge Functions.
-  responseText = responseText.replace(/cloud functions/i, 'Edge Functions');
-  responseText = responseText.replace(/rendered by/i, 'changed by');
+  // // Replace certain phrases in the response text to indicate processing by Edge Functions.
+  responseText = responseText.replace(/cloud functions/gi, 'Edge Functions');
+  responseText = responseText.replace(/rendered by/gi, 'changed by');
 
   // Return a new response with the modified text and original response status, status text, and headers.
   return new Response(responseText, {

examples/v7-ef-cloud-fetch/routes.ts

@@ -7,5 +7,5 @@ export default new Router()
   // NextRoutes automatically adds routes for all Next.js pages and their assets
   .use(nextRoutes)
   .match('/edge-override', {
-    edge_function: 'edge-functions/index.js',
+    edge_function: './edge-functions/index.js',
   });

examples/v7-ef-cloud-fetch/src/app/edge-override/page.tsx

@@ -1,4 +1,10 @@
-const EdgioCloudFunctionsPage = () => {
+import { headers } from 'next/headers';
+
+export default async function EdgioCloudFunctionsPage() {
+  // add in reference to headers() to force this page to be server-side rendered
+  const headersList = headers();
+  const referer = headersList.get('referer');
+
   return (
     <div
       style={{
@@ -11,9 +17,8 @@ const EdgioCloudFunctionsPage = () => {
       <div>
         <h1>Edgio Cloud Functions</h1>
         <p>This page was rendered by Edgio Cloud Functions.</p>
+        <div>Referer: {referer}</div>
       </div>
     </div>
   );
-};
-
-export default EdgioCloudFunctionsPage;
+}

examples/v7-ef-cloud-fetch/src/app/page.tsx

@@ -1,113 +1,46 @@
-import Image from 'next/image'
-
 export default function Home() {
   return (
-    <main className="flex min-h-screen flex-col items-center justify-between p-24">
-      <div className="z-10 max-w-5xl w-full items-center justify-between font-mono text-sm lg:flex">
-        <p className="fixed left-0 top-0 flex w-full justify-center border-b border-gray-300 bg-gradient-to-b from-zinc-200 pb-6 pt-8 backdrop-blur-2xl dark:border-neutral-800 dark:bg-zinc-800/30 dark:from-inherit lg:static lg:w-auto  lg:rounded-xl lg:border lg:bg-gray-200 lg:p-4 lg:dark:bg-zinc-800/30">
-          Get started by editing&nbsp;
-          <code className="font-mono font-bold">src/app/page.tsx</code>
+    <main className="flex min-h-screen flex-col items-center justify-center p-24">
+      <div className="z-10 max-w-5xl w-full text-center font-mono text-sm">
+        <p className="mb-4 text-left mx-auto">
+          Welcome! This page demonstrates how Edgio Edge Functions can be used
+          with Next.js to modify cloud function responses at the edge. By
+          visiting the link below, the following request flow will occur:
         </p>
-        <div className="fixed bottom-0 left-0 flex h-48 w-full items-end justify-center bg-gradient-to-t from-white via-white dark:from-black dark:via-black lg:static lg:h-auto lg:w-auto lg:bg-none">
-          <a
-            className="pointer-events-none flex place-items-center gap-2 p-8 lg:pointer-events-auto lg:p-0"
-            href="https://vercel.com?utm_source=create-next-app&utm_medium=appdir-template&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
-          >
-            By{' '}
-            <Image
-              src="/vercel.svg"
-              alt="Vercel Logo"
-              className="dark:invert"
-              width={100}
-              height={24}
-              priority
-            />
-          </a>
-        </div>
-      </div>
-
-      <div className="relative flex place-items-center before:absolute before:h-[300px] before:w-[480px] before:-translate-x-1/2 before:rounded-full before:bg-gradient-radial before:from-white before:to-transparent before:blur-2xl before:content-[''] after:absolute after:-z-20 after:h-[180px] after:w-[240px] after:translate-x-1/3 after:bg-gradient-conic after:from-sky-200 after:via-blue-200 after:blur-2xl after:content-[''] before:dark:bg-gradient-to-br before:dark:from-transparent before:dark:to-blue-700 before:dark:opacity-10 after:dark:from-sky-900 after:dark:via-[#0141ff] after:dark:opacity-40 before:lg:h-[360px] z-[-1]">
-        <Image
-          className="relative dark:drop-shadow-[0_0_0.3rem_#ffffff70] dark:invert"
-          src="/next.svg"
-          alt="Next.js Logo"
-          width={180}
-          height={37}
-          priority
-        />
-      </div>
-
-      <div className="mb-32 grid text-center lg:max-w-5xl lg:w-full lg:mb-0 lg:grid-cols-4 lg:text-left">
-        <a
-          href="https://nextjs.org/docs?utm_source=create-next-app&utm_medium=appdir-template&utm_campaign=create-next-app"
-          className="group rounded-lg border border-transparent px-5 py-4 transition-colors hover:border-gray-300 hover:bg-gray-100 hover:dark:border-neutral-700 hover:dark:bg-neutral-800/30"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          <h2 className={`mb-3 text-2xl font-semibold`}>
-            Docs{' '}
-            <span className="inline-block transition-transform group-hover:translate-x-1 motion-reduce:transform-none">
-              -&gt;
-            </span>
-          </h2>
-          <p className={`m-0 max-w-[30ch] text-sm opacity-50`}>
-            Find in-depth information about Next.js features and API.
-          </p>
-        </a>
-
-        <a
-          href="https://nextjs.org/learn?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-          className="group rounded-lg border border-transparent px-5 py-4 transition-colors hover:border-gray-300 hover:bg-gray-100 hover:dark:border-neutral-700 hover:dark:bg-neutral-800/30"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          <h2 className={`mb-3 text-2xl font-semibold`}>
-            Learn{' '}
-            <span className="inline-block transition-transform group-hover:translate-x-1 motion-reduce:transform-none">
-              -&gt;
-            </span>
-          </h2>
-          <p className={`m-0 max-w-[30ch] text-sm opacity-50`}>
-            Learn about Next.js in an interactive course with&nbsp;quizzes!
-          </p>
-        </a>
-
-        <a
-          href="https://vercel.com/templates?framework=next.js&utm_source=create-next-app&utm_medium=appdir-template&utm_campaign=create-next-app"
-          className="group rounded-lg border border-transparent px-5 py-4 transition-colors hover:border-gray-300 hover:bg-gray-100 hover:dark:border-neutral-700 hover:dark:bg-neutral-800/30"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          <h2 className={`mb-3 text-2xl font-semibold`}>
-            Templates{' '}
-            <span className="inline-block transition-transform group-hover:translate-x-1 motion-reduce:transform-none">
-              -&gt;
-            </span>
-          </h2>
-          <p className={`m-0 max-w-[30ch] text-sm opacity-50`}>
-            Explore starter templates for Next.js.
-          </p>
-        </a>
-
+        <ol className="list-decimal list-inside text-left my-4">
+          <li>
+            The browser will request the page{' '}
+            <code className="bg-gray-700 p-1 rounded">/edge-override</code>.
+          </li>
+          <li>
+            Edgio will match this request as defined in the{' '}
+            <code className="bg-gray-700 p-1 rounded">routes.ts</code> file and
+            process it through{' '}
+            <code className="bg-gray-700 p-1 rounded">
+              ./edge-functions/index.js
+            </code>
+            .
+          </li>
+          <li>
+            The edge function will request the page from the Next.js server
+            cloud function.
+          </li>
+          <li>
+            The Next.js server will render the page and respond to the edge
+            function.
+          </li>
+          <li>
+            The edge function will modify the response and send it to the
+            browser.
+          </li>
+        </ol>
         <a
-          href="https://vercel.com/new?utm_source=create-next-app&utm_medium=appdir-template&utm_campaign=create-next-app"
-          className="group rounded-lg border border-transparent px-5 py-4 transition-colors hover:border-gray-300 hover:bg-gray-100 hover:dark:border-neutral-700 hover:dark:bg-neutral-800/30"
-          target="_blank"
-          rel="noopener noreferrer"
+          href="/edge-override"
+          className="inline-block bg-blue-500 hover:bg-blue-700 text-white font-bold py-2 px-4 rounded"
         >
-          <h2 className={`mb-3 text-2xl font-semibold`}>
-            Deploy{' '}
-            <span className="inline-block transition-transform group-hover:translate-x-1 motion-reduce:transform-none">
-              -&gt;
-            </span>
-          </h2>
-          <p className={`m-0 max-w-[30ch] text-sm opacity-50`}>
-            Instantly deploy your Next.js site to a shareable URL with Vercel.
-          </p>
+          Go to Edge Override
         </a>
       </div>
     </main>
-  )
+  );
 }

examples/v7-ef-cloud-fetch/tsconfig.json

@@ -22,6 +22,12 @@
       "@/*": ["./src/*"]
     }
   },
-  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
+  "include": [
+    "next-env.d.ts",
+    "**/*.ts",
+    "**/*.tsx",
+    ".next/types/**/*.ts",
+    "edge-functions/index.js"
+  ],
   "exclude": ["node_modules"]
 }