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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.
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';
// The name of the cookie
const COOKIE_NAME = '__uid';
function handleRequest(request) {
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);
}
addEventListener('fetch', event => {
event.respondWith(handleRequest(event.request));
});