#rerender server component on url change nextjs 13

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rancid crestBOT
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Hi @late smelt. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

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In Next.js 13, when a route transition is initiated using <Link> or by calling router.push(), the router updates the URL in the browser's address bar. If the conditions of soft navigation are met, the router fetches the new segment from the cache rather than the server. If not, the router performs a hard navigation and fetches the Server Component payload from the server. The router then uses the cached or fresh payload to render the new segments on the client.

Here's a brief overview of how navigation works in Next.js:

  1. A route transition is initiated using <Link> or calling router.push().
  2. The router updates the URL in the browser's address bar.
  3. The router avoids unnecessary work by re-using segments that haven't changed (e.g. shared layouts) from the client-side cache. This is also referred to as partial rendering.
  4. If the conditions of soft navigation are met, the router fetches the new segment from the cache rather than the server. If not, the router performs a hard navigation and fetches the Server Component payload from the server.
  5. If created, loading UI is shown from the server while the payload is being fetched.
  6. The router uses the cached or fresh payload to render the new segments on the client.

For more details, you can refer to the Next.js documentation on routing, linking, and navigating (https://nextjs.org/docs/app/building-your-application/routing/linking-and-navigating).

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late smelt
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@rancid crest does this mean querystrings as well

rancid crestBOT
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Let me check the knowledge base for you. One moment! :books:

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Yes, changes in the query string part of the URL will also trigger a re-render of the Server Component in Next.js. When the URL changes, including the query string, the router fetches the new Server Component payload from the server or from the cache, and then uses this payload to render the new segments on the client.

For example, if you navigate from /page?query=1 to /page?query=2, the Server Component for /page will be re-rendered with the new query string.

You can access the query string in your Server Component using the useRouter hook from next/router. Here's an example:

import { useRouter } from 'next/router'

export default function Page() {
  const router = useRouter()

  // Will be '1' if the URL is '/page?query=1'
  const query = router.query.query

  // ...
}

Remember that the useRouter hook can only be used in Client Components. If you need to access the query string in a Server Component, you should pass it as a prop from a Client Component.

For more information, you can refer to the Next.js documentation on the useRouter hook (https://nextjs.org/docs/app/api-reference/functions/use-router).

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: