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middleware.ts
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/
middleware.ts
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import {NextRequest, NextResponse, userAgent} from 'next/server';
export const config = {
matcher: [
/*
* Match all paths except for:
* 1. /api routes
* 2. /_next (Next.js internals)
* 3. /_static (inside /public)
* 4. all root files inside /public (e.g. /favicon.ico)
*/
'/((?!api/|_next/|_static/|_vercel|[\\w-]+\\.\\w+).*)',
],
};
export default async function middleware(req: NextRequest) {
const hostname = req.headers.get('host');
const {device} = userAgent(req);
const url = req.nextUrl;
const searchParams = req.nextUrl.searchParams.toString();
const path = `${url.pathname}${
searchParams.length > 0 ? `?${searchParams}` : ''
}`;
if (hostname?.includes('localhost')) {
return new NextResponse(null, {
headers: {
refresh: '0',
},
});
}
return NextResponse.rewrite(
new URL(`/${device.type || 'desktop'}/${hostname}${path}`, req.url),
);
}