Cookie parsing

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 SimpleCookie
from workers import Response

async def on_fetch(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)

External dependencies

This example requires the npm package cookie ↗ to be installed in your JavaScript project.