Redirect issue with getserversideprops #13871
Replies: 2 comments 6 replies
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From your question, I'm not entirely sure what you mean, but the first problem I notice in your screenshot is that you are using https://nextjs.org/docs/basic-features/data-fetching#only-allowed-in-a-page-2 If you take a look in the docs here, you will notice it says it can only be exported from a page file, so that's the first thing I would update in your example. |
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Hmm to be honest I'm not sure why it's failing. I just tested it locally with a small code example and it works. Are you maybe handling some server side props in the global This is the small example I used, basically the same as your code. import cookie from 'cookie';
import Head from 'next/head';
import Link from 'next/link';
import { useEffect } from 'react';
function setCookie(cname, cvalue, exdays) {
var d = new Date();
d.setTime(d.getTime() + exdays * 24 * 60 * 60 * 1000);
var expires = 'expires=' + d.toUTCString();
document.cookie = cname + '=' + cvalue + ';' + expires + ';path=/';
}
export default function Login({ name = '' }) {
useEffect(() => {
setCookie('TEST_COOKIE', true);
}, []);
return (
<div className="container">
<Head>
<title>Login Page</title>
</Head>
<h1>Hello {name}</h1>
<Link href="/" as="/">
<a>Index</a>
</Link>
</div>
);
}
export const getServerSideProps = async ({ req, res }) => {
const cookies = cookie.parse(req.headers.cookie ?? '');
if (cookies['TEST_COOKIE']) {
res.writeHead(302, { Location: '/' });
res.end();
return { props: {} };
}
return { props: { name: 'Test' } };
}; |
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I'm handling some in the _app.js with getInitialProps.. As getserversideprops doesn't work there |
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Are you maybe doing Because the error message "...write after end" means that you tried to write something to the response after the response has ended, so your |
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Where do I put this code you made? |
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Opened a RFC here: #14890 |
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I'm trying to redirect in login page to the home page when the cookie that verifies authentication is found. when I use getserversideprops... Page redirects on first load but when i hit refresh of the login page again i get error of header sent.. screenshot below.
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