When I import next/server in pages/api/_middleware.ts, always violate no-server-import-in-page

[nabi-chan]

What version of Next.js are you using?

12.0.6 (latest)

What version of Node.js are you using?

14.17.3

What browser are you using?

chrome, safari, firefox

What operating system are you using?

macOS

How are you deploying your application?

next dev

Describe the Bug

When I create a middleware.js file in a folder over 1 depth in pages (e.g pages/api)
and import next/server there, eslint informs me that I violated 'no-server-import-in-page' (picture 1)
But when I create middleware on pages/ these error doesn't shown. (picture 2)

P.S. If I must be import next/server right under the pages/, please let me know.

pages/api/my/_middleware.js

pages/_middleware.js

Expected Behavior

Errors aren't displayed when import next/server regardless depth in pages/**

To Reproduce

.eslintrc.json

{
  "extends": ["next/core-web-vitals", "plugin:prettier/recommended"],
    "rules": {
      "@next/next/no-img-element": "off",
      "import/no-anonymous-default-export": "off"
    }
}

/pages/_middleware.js

// this file doesn't shown error
import { NextResponse } from "next/server";

export function middleware(req) {
  if (!req.headers.get("
    return new Response("unauthorized", {
      status: 401,
    });
  }

  NextResponse.next();
}

/pages/api/_middleware.js

// next/server should not be imported outside of pages/_middleware.js.
// See https://nextjs.org/docs/messages/no-server-import-in-page.
import { NextResponse } from "next/server";

export function middleware(req) {
  if (!req.headers.get("
    return new Response("unauthorized", {
      status: 401,
    });
  }

  NextResponse.next();
}

[balazsorban44]

This has been fixed in the canary branch, please upgrade npm i next@canary or wait until it lands in stable.

Related PR: #32139

[adityar15]

it doesn't work. Event after running npm i next@canary.

My middleware is inside pages/dashboard/_middleware.js

[balazsorban44]

Make sure to update eslint-config-next as well!