一、示例代码
// cookie 名称const COOKIE_NAME = 'count';async function handleRequest(request) { // 获取当前请求的 Cookies，并解析为对象 const cookies = new Cookies(request.headers.get('cookie')); const cookieCount = cookies.get(COOKIE_NAME); // 计数累加 const count = Number(cookieCount && cookieCount.value || 0) + 1; // 更新 cookie 的计数 cookies.set(COOKIE_NAME, String(count)); const response = new Response(`The count is: ${count}`); // 设置响应 cookies response.headers.set('Set-Cookie', getSetCookie(cookies.get(COOKIE_NAME))); return response;}// 拼接 Set-Cookiefunction getSetCookie(cookie) { const cookieArr = [ `${encodeURIComponent(cookie.name)}=${encodeURIComponent(cookie.value)}`, ]; const key2name = { expires: 'Expires', max_age: 'Max-Age', domain: 'Domain', path: 'Path', secure: 'Secure', httponly: 'HttpOnly', samesite: 'SameSite', }; Object.keys(key2name).forEach(key => { if (cookie[key]) { cookieArr.push(`${key2name[key]}=${cookie[key]}`); } }); return cookieArr.join('; ');}addEventListener('fetch', (event) => { event.respondWith(handleRequest(event.request));});
二、示例预览
在浏览器地址栏中输入匹配到边缘函数触发规则的 URL，即可预览到示例效果。
三、相关参考
·Runtime APIs: Cookies
·Runtime APIs: Response
·Runtime APIs: Request