---
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://developers.cloudflare.com/dev-products-preview.png
---

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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-11983)
* [  TypeScript ](#tab-panel-11984)
* [  Python ](#tab-panel-11985)
* [  Hono ](#tab-panel-11986)

JavaScript

```
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

```
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

```
from http.cookies import SimpleCookiefrom 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

```
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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