page.js
The page
file is used to define a page in your Next.js application.
app/blog/[slug]/page.tsx
export default function Page({
params,
searchParams,
}: {
params: Promise<{ slug: string }>
searchParams: Promise<{ [key: string]: string | string[] | undefined }>
}) {
return <h1>My Page</h1>
}
Reference
Props
params
(optional)
A promise that resolves to an object containing the dynamic route parameters from the root segment down to that page.
app/shop/[slug]/page.tsx
export default async function Page({
params,
}: {
params: Promise<{ slug: string }>
}) {
const slug = (await params).slug
}
Example Route | URL | params |
---|---|---|
app/shop/[slug]/page.js | /shop/1 | Promise<{ slug: '1' }> |
app/shop/[category]/[item]/page.js | /shop/1/2 | Promise<{ category: '1', item: '2' }> |
app/shop/[...slug]/page.js | /shop/1/2 | Promise<{ slug: ['1', '2'] }> |
- Since the
params
prop is a promise. You must useasync/await
or React'suse
function to access the values.- In version 14 and earlier,
params
was a synchronous prop. To help with backwards compatability, you can still access it synchronously in Next.js 15, but this behavior will be deprecated in the future.
- In version 14 and earlier,
searchParams
(optional)
A promise that resolves to an object containing the search parameters of the current URL. For example:
app/shop/page.tsx
export default async function Page({
searchParams,
}: {
searchParams: Promise<{ [key: string]: string | string[] | undefined }>
}) {
const filters = (await searchParams).filters
}
Example URL | searchParams |
---|---|
/shop?a=1 | Promise<{ a: '1' }> |
/shop?a=1&b=2 | Promise<{ a: '1', b: '2' }> |
/shop?a=1&a=2 | Promise<{ a: ['1', '2'] }> |
- Since the
searchParams
prop is a promise. You must useasync/await
or React'suse
function to access the values.- In version 14 and earlier,
searchParams
was a synchronous prop. To help with backwards compatability, you can still access it synchronously in Next.js 15, but this behavior will be deprecated in the future.
- In version 14 and earlier,
searchParams
is a Dynamic API whose values cannot be known ahead of time. Using it will opt the page into dynamic rendering at request time.searchParams
is a plain JavaScript object, not aURLSearchParams
instance.
Examples
Displaying content based on params
Using dynamic route segments, you can display or fetch specific content for the page based on the params
prop.
app/blog/[slug]/page.tsx
export default async function Page({
params,
}: {
params: Promise<{ slug: string }>
}) {
const { slug } = await params
return <h1>Blog Post: {slug}</h1>
}
Handling filtering with searchParams
You can use the searchParams
prop to handle filtering, pagination, or sorting based on the query string of the URL.
app/shop/page.tsx
export default async function Page({
searchParams,
}: {
searchParams: Promise<{ [key: string]: string | string[] | undefined }>
}) {
const { page = '1', sort = 'asc', query = '' } = await searchParams
return (
<div>
<h1>Product Listing</h1>
<p>Search query: {query}</p>
<p>Current page: {page}</p>
<p>Sort order: {sort}</p>
</div>
)
}
Reading searchParams
and params
in Client Components
To use searchParams
and params
in a Client Component (which cannot be async
), you can use React's use
function to read the promise:
app/page.tsx
'use client'
import { use } from 'react'
export function Page({
params,
searchParams,
}: {
params: Promise<{ slug: string }>
searchParams: Promise<{ [key: string]: string | string[] | undefined }>
}) {
const { slug } = use(params)
const { query } = use(searchParams)
}
Version History
Version | Changes |
---|---|
v15.0.0-RC | params and searchParams are now promises. A codemod is available. |
v13.0.0 | page introduced. |
Was this helpful?