Create Index.js

Index.js

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+export default {
+  async fetch(request, env) {
+    const tasks = [];
+
+
+    // prompt - simple completion style input
+    let simple = {
+      prompt: 'Tell me a joke about Cloudflare'
+    };
+    let response = await env.AI.run('@cf/meta/llama-3-8b-instruct', simple);
+    tasks.push({ inputs: simple, response });
+
+
+    // messages - chat style input
+    let chat = {
+      messages: [
+        { role: 'system', content: 'You are a helpful assistant.' },
+        { role: 'user', content: 'Who won the world series in 2020?' }
+      ]
+    };
+    response = await env.AI.run('@cf/meta/llama-3-8b-instruct', chat);
+    tasks.push({ inputs: chat, response });
+
+
+    return Response.json(tasks);
+  }
+};