---
title: "Fastly Compute"
description: "Serve AI-optimized markdown at the edge with Fastly Compute"
---

`@dualmark/fastly` natively integrates with Fastly Compute using Fastly's extended `fetch` API. It transparently serves markdown to AI bots from a designated backend, while falling back to HTML for normal users.

## Installation

```bash
bun add @dualmark/fastly @dualmark/core
```
```bash
npm install @dualmark/fastly @dualmark/core
```

## Setup

Use `createAEOFetchEventHandler` to wrap your logic, then specify your Fastly backends:

```js
import { createAEOFetchEventHandler } from "@dualmark/fastly";

const handler = createAEOFetchEventHandler({
  backend: "origin_backend",
  markdownBackend: "markdown_backend", // Optional
  hooks: {
    onAIRequest: (info) => {
      console.log("Served markdown to:", info.botName);
    }
  }
});

addEventListener("fetch", (event) => {
  event.respondWith(handler(event));
});
```

See the [packages reference](/docs/packages/fastly) for detailed options.