Cookie parsing

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

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

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);
  },
};

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;

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)

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;

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