---
title: Request-time API was called outside request
---

## Why This Error Occurred

A Request-time API was called outside a request scope. (Eg.: Global scope).

Note that Request-time APIs could have been called deep inside other modules/functions (eg.: third-party libraries) that are not immediately visible.

## Possible Ways to Fix It

Make sure that all Request-time API calls happen in a request scope.

Example:

```diff filename="app/page.js"
import { cookies } from 'next/headers'

- const cookieStore = await cookies()
export default async function Page() {
+ const cookieStore = await cookies()
  return ...
}
```

```diff filename="app/foo/route.js"
import { headers } from 'next/headers'

- const headersList = await headers()
export async function GET() {
+ const headersList = await headers()
  return ...
}
```

## `generateStaticParams`

Request-time APIs like `headers()`, `cookies()`, `connection()`, and `draftMode()` are not available inside `generateStaticParams` because it runs at build time to determine which pages to statically generate. There is no HTTP request in this context.

Note: Root param getters (`import { lang } from 'next/root-params'`) _are_ supported inside `generateStaticParams` for nested segments, as the parent params are known at that point.

## Useful Links

- [`headers()` function](/docs/app/api-reference/functions/headers)
- [`cookies()` function](/docs/app/api-reference/functions/cookies)
- [`draftMode()` function](/docs/app/api-reference/functions/draft-mode)
- [`unstable_noStore()` function](/docs/app/api-reference/functions/unstable_noStore)
- [`unstable_cache()` function](/docs/app/api-reference/functions/unstable_cache)