#get query params

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cinder drumBOT
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Hi @zealous bison. 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, you can access the query parameters in your URL in several ways depending on your use case.

  1. Using getServerSideProps: If you're using server-side rendering with getServerSideProps, you can access the query parameters from the context parameter. The query object in the context parameter represents the query string, including dynamic route parameters.
export async function getServerSideProps({ query }) {
  // query object contains the query parameters
  return { props: { ... }}
}

Source (https://nextjs.org/docs/pages/api-reference/functions/get-server-side-props)

  1. Using getStaticProps with dynamic routes: If you're using getStaticProps with dynamic routes, the parameters added to a page will always be available inside the query object.

  2. Using next/router: If you're working with client-side routing, you can use the next/router package to access the query parameters. The router's query object will be empty during prerendering, but Next.js will trigger an update to your application to provide the route parameters in the query object after hydration. You can leverage the isReady field on next/router to distinguish if the query is fully updated and ready for use.

import { useRouter } from 'next/router'

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

  // Access the query parameters
  const { query } = router

  // ...
}

Source (https://nextjs.org/docs/pages/building-your-application/rendering/automatic-static-optimization)

  1. Using searchParams prop in Server Components: If you're working with Server Components, you can use the searchParams prop to access search parameters.

Source (https://nextjs.org/docs/app/api-reference/functions/use-search-params)

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Remember to choose the method that best fits your use case.

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@zealous bison kapa.ai is still learning and improving, please let us know how it did by reacting below

zealous bison
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@cinder drum give me an example of it using next.js 13 and knowing that I'm not sure about which query params I could found

cinder drumBOT
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Let me check the knowledge base for you. One moment! :books:

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In Next.js 13, you can use the NextRequest object from the next/server package to access the query parameters in your URL. This is particularly useful when you're not sure about which query parameters you might find, as you can iterate over all of them.

Here's an example of how you can do this:

import type { NextRequest } from 'next/server'
 
export const config = {
 runtime: 'edge',
}
 
export default async function handler(req: NextRequest) {
 const { searchParams } = new URL(req.url)
 const email = searchParams.get('email') // replace 'email' with the name of your query parameter
 return new Response(email)
}

In this example, the searchParams object is a read-only version of the URLSearchParams interface, which provides methods to work with the query string of a URL. You can use the get method to retrieve the value of a specific query parameter, or you can iterate over all parameters using the forEach method.

Source (https://nextjs.org/docs/pages/building-your-application/routing/api-routes)

If you're working with client-side components, you can use the useSearchParams hook from the next/navigation package:

'use client'
 
import { useSearchParams } from 'next/navigation'
 
export default function SearchBar() {
 const searchParams = useSearchParams()
 
 const search = searchParams.get('search') // replace 'search' with the name of your query parameter
 
 // URL -> `/dashboard?search=my-project`
 // `search` -> 'my-project'
 return <>Search: {search}</>
}

In this example, useSearchParams returns a read-only URLSearchParams object, which you can use to access the query parameters in your URL.