有关ETAG和缓存控制标头的问题

发布于 2025-02-05 18:19:49 字数 609 浏览 3 评论 0原文

我正在尝试自定义缓存策略。
不适合我。

因为默认设置强>
请检查我的理解是否正确。

首先，我的响应数据不经常变化。但偶尔会改变。

这是我的计划。

也许我应该每次重新估计。因此，我需要设置我的CACH-CORTORL这样。

Cache-Control: public max-age=0 must-revalidate

我想，通过这种方式，我的数据将存储在客户端浏览器
中并且浏览器将始终发送检查值是新的请求。

在服务器上，我将编写代码来处理以下行中写的内容。

I am trying to customize cache strategy.
because default setting is not fit on me ... Serviced by (Vercel).

I am unfamiliar with the cache setting through the http header, so I would like to ask for help.
Please check if my understanding is correct.

First of all, my response data doesn't change often.
But occasionally it changes.

Here is my plan.

Maybe i should revalidate every time. so i need to set my Cache-Control like this.

Cache-Control: public max-age=0 must-revalidate

I guess, with this way, my data will be stored in the client browser
and the browser will always send request that check the value is new.

And on the server, i'll write code to handle the things written in the lines below.

First, set Etag on response header.
Second, if the If-None-Match value comes from the request header, I compare it with my service logic to check whether the value is up to date.
If the If-None-Match value is up to date, I just write 304 in the response and send it.
And otherwise, I just respond with the data normally. with the new Etag value.