---
title: Accessing the Cloudflare Object
description: Access custom Cloudflare properties and control how Cloudflare features are applied to every request.
image: https://developers.cloudflare.com/dev-products-preview.png
---

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# Accessing the Cloudflare Object

Access custom Cloudflare properties and control how Cloudflare features are applied to every request.

If you want to get started quickly, click on the button below.

[![Deploy to Cloudflare](https://deploy.workers.cloudflare.com/button)](https://deploy.workers.cloudflare.com/?url=https://github.com/cloudflare/docs-examples/tree/main/workers/accessing-the-cloudflare-object)

This creates a repository in your GitHub account and deploys the application to Cloudflare Workers.

* [  JavaScript ](#tab-panel-11896)
* [  TypeScript ](#tab-panel-11897)
* [  Hono ](#tab-panel-11898)
* [  Python ](#tab-panel-11899)

JavaScript

```
export default {  async fetch(req) {    const data =      req.cf !== undefined        ? req.cf        : { error: "The `cf` object is not available inside the preview." };
    return new Response(JSON.stringify(data, null, 2), {      headers: {        "content-type": "application/json;charset=UTF-8",      },    });  },};
```

TypeScript

```
export default {  async fetch(req): Promise<Response> {    const data =      req.cf !== undefined        ? req.cf        : { error: "The `cf` object is not available inside the preview." };
    return new Response(JSON.stringify(data, null, 2), {      headers: {        "content-type": "application/json;charset=UTF-8",      },    });  },} satisfies ExportedHandler;
```

TypeScript

```
import { Hono } from "hono";
const app = new Hono();
app.get("*", async (c) => {  // Access the raw request to get the cf object  const req = c.req.raw;
  // Check if the cf object is available  const data =    req.cf !== undefined      ? req.cf      : { error: "The `cf` object is not available inside the preview." };
  // Return the data formatted with 2-space indentation  return c.json(data);});
export default app;
```

Python

```
import jsonfrom workers import Response, WorkerEntrypointfrom js import JSON
class Default(WorkerEntrypoint):  async def fetch(self, request):    error = json.dumps({ "error": "The `cf` object is not available inside the preview." })    data = request.cf if request.cf is not None else error    headers = {"content-type":"application/json"}    return Response(JSON.stringify(data, None, 2), headers=headers)
```

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