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I'm unable to access the query parameters of an astro file.

Given the url http://localhost:3000/example?hello=meow:

How can I access {hello: "meow"} from within the example.astro file?

ThomasReggi
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  • Does this answer your question? [How to get the querystring parameters with Astro](https://stackoverflow.com/questions/70173939/how-to-get-the-querystring-parameters-with-astro) – BadPiggie Aug 17 '22 at 04:53
  • @BadPiggie nope this is specifically using the query params on the client / front-end js. – ThomasReggi Aug 17 '22 at 14:50
  • What do you mean by `server side`. The pages in `Astro` are rendered up-front and are entirely static – BadPiggie Aug 17 '22 at 15:38
  • @BadPiggie there's a `output: "server"` mode where it does ssr instead. – ThomasReggi Aug 17 '22 at 17:55

1 Answers1

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If you're writing an API route, then you'd use a .ts or .js file [source].
In that, you can write a get method like this:

export async function get({request}) {
  // process the URL into a more usable format
  const url = new URL(request.url)
  const params = new URLSearchParams(url.search)

  // set up a response object
  const data = {
    hello: params.get('hello'),
  };

  // this will yield { hello: 'meow' } on your Astro server console
  console.log(data)
  
  // return the response
  return new Response(JSON.stringify(data), {
    status: 200
  }); }

From an .astro file you can access the url through const { url } = Astro.request; for SSR, I think. For static pages, you can do it through const url = Astro.url; [source].

thewildandy
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Hasan Ali
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  • Hey Hasan, I just tried this and it did work with the `output: "server"` config here: https://stackblitz.com/edit/github-qcqhjz?file=astro.config.mjs,src%2Fpages%2Fexample.json.ts – ThomasReggi Aug 18 '22 at 15:15
  • Can you add instructions on adding `output: "server"` to the config to your answer? – ThomasReggi Aug 18 '22 at 15:15
  • I followed the instructions on the official docs for the integration you need [[SSR Docs](https://docs.astro.build/en/guides/server-side-rendering/)]. I used the [Vercel integration](https://docs.astro.build/en/guides/integrations-guide/vercel/), and all I had to do was type in `export default defineConfig({output: 'server', adapter: vercel()});`. What integration do you have in mind? – Hasan Ali Aug 18 '22 at 15:50