Next.js 中为什么没有通过 getServerSideProps 将 cookie 发送到服务器? [英] Why are cookies not sent to the server via getServerSideProps in Next.js?
问题描述
cookies不是通过getServerSideProps
发送到服务器的,这里是前端的代码:
Cookies are not sent to the server via getServerSideProps
, here is the code in the front-end:
export async function getServerSideProps() {
const res = await axios.get("http://localhost:5000/api/auth", {withCredentials: true});
const data = await res.data;
return { props: { data } }
}
在服务器上,我有一个检查访问 JWT 令牌的策略.
On the server I have a strategy that checks the access JWT token.
export class JwtStrategy extends PassportStrategy(Strategy, "jwt") {
constructor() {
super({
ignoreExpiration: false,
secretOrKey: "secret",
jwtFromRequest: ExtractJwt.fromExtractors([
(request: Request) => {
console.log(request.cookies) // [Object: null prototype] {}
let data = request.cookies['access'];
return data;
}
]),
});
}
async validate(payload: any){
return payload;
}
}
也就是说,当我通过 getServerSideProps
发送请求时,cookie 不会到达服务器,但如果我发送,例如通过 useEffect
,那么 cookie 会正常到达.
That is, when I send a request via getServerSideProps
cookies do not come to the server, although if I send, for example via useEffect
, then cookies come normally.
推荐答案
那是因为 getServerSideProps
内部的请求不在浏览器中运行 - 每个请求都会自动发送 cookie - 但实际上得到在服务器上执行,在 Node.js 环境中.
That's because the request inside getServerSideProps
doesn't run in the browser - where cookies are automatically sent on every request - but actually gets executed on the server, in a Node.js environment.
这意味着您需要显式传递 cookie 到 axios
请求以发送它们通过.
This means you need to explicitly pass the cookies to the axios
request to send them through.
export async function getServerSideProps({ req }) {
const res = await axios.get("http://localhost:5000/api/auth", {
withCredentials: true,
headers: {
Cookie: req.headers.cookie
}
});
const data = await res.data;
return { props: { data } }
}
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