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Merged
merged 3 commits into from
Sep 22, 2025
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docs: add pageExtensions note to Middleware and clarify default filename #84045

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docs: add pageExtensions note to Middleware and clarify default filename
Milancen123 Sep 21, 2025
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docs: Middleware w/ pageExtensions note
icyJoseph Sep 22, 2025
a8b1b59
Merge branch 'canary' into patch-1
icyJoseph Sep 22, 2025
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2 changes: 2 additions & 0 deletions docs/01-app/03-api-reference/03-file-conventions/middleware.mdx
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Expand Up @@ -20,6 +20,8 @@ Middleware executes before routes are rendered. It's particularly useful for imp

Create a `middleware.ts` (or `.js`) file in the project root, or inside `src` if applicable, so that it is located at the same level as `pages` or `app`.

If you’ve customized [`pageExtensions`](/docs/app/api-reference/config/next-config-js/pageExtensions), for example to `.page.ts` or `.page.js`, name your file `middleware.page.ts` or `middleware.page.js` accordingly.

```tsx filename="middleware.ts" switcher
import { NextResponse, NextRequest } from 'next/server'

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