---
title: Cookie parsing
description: Given the cookie name, get the value of a cookie. You can also use cookies for A/B testing.
image: https://edgetunnel-b2h.pages.dev/dev-products-preview.png
---

> Documentation Index  
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# Cookie parsing

Given the cookie name, get the value of a cookie. You can also use cookies for A/B testing.

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/extract-cookie-value)

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

* [  JavaScript ](#tab-panel-12524)
* [  TypeScript ](#tab-panel-12525)
* [  Python ](#tab-panel-12526)
* [  Hono ](#tab-panel-12527)

**JavaScript**

```js
import { parse } from "cookie";
export default {
  async fetch(request) {
    // The name of the cookie
    const COOKIE_NAME = "__uid";
    const cookie = parse(request.headers.get("Cookie") || "");
    if (cookie[COOKIE_NAME] != null) {
      // Respond with the cookie value
      return new Response(cookie[COOKIE_NAME]);
    }
    return new Response("No cookie with name: " + COOKIE_NAME);
  },
};
```

**TypeScript**

```ts
import { parse } from "cookie";
export default {
  async fetch(request): Promise<Response> {
    // The name of the cookie
    const COOKIE_NAME = "__uid";
    const cookie = parse(request.headers.get("Cookie") || "");
    if (cookie[COOKIE_NAME] != null) {
      // Respond with the cookie value
      return new Response(cookie[COOKIE_NAME]);
    }
    return new Response("No cookie with name: " + COOKIE_NAME);
  },
} satisfies ExportedHandler;
```

**Python**

```py
from http.cookies import SimpleCookie
from workers import WorkerEntrypoint, Response


class Default(WorkerEntrypoint):
    async def fetch(self, request):
        # Name of the cookie
        cookie_name = "__uid"


        cookies = SimpleCookie(request.headers["Cookie"] or "")


        if cookie_name in cookies:
            # Respond with cookie value
            return Response(cookies[cookie_name].value)


        return Response("No cookie with name: " + cookie_name)
```

**TypeScript**

```ts
import { Hono } from 'hono';
import { getCookie } from 'hono/cookie';


const app = new Hono();


app.get('*', (c) => {
  // The name of the cookie
  const COOKIE_NAME = "__uid";


  // Get the specific cookie value using Hono's cookie helper
  const cookieValue = getCookie(c, COOKIE_NAME);


  if (cookieValue) {
    // Respond with the cookie value
    return c.text(cookieValue);
  }


  return c.text("No cookie with name: " + COOKIE_NAME);
});


export default app;
```

External dependencies

This example requires the npm package [cookie ↗](https://www.npmjs.com/package/cookie) to be installed in your JavaScript project.

The Hono example uses the built-in cookie utilities provided by Hono, so no external dependencies are needed for that implementation.

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```