_middleware.ts

import type { NextFetchEvent } from 'next/server';
import { NextResponse } from 'next/server';
export function middleware(event: NextFetchEvent) {
  // gram the user's location or use India for default
  const country = event.request.geo.country.toLowerCase() || 'IND';

  //rewrite to static, cached page for each local
  return event.respondWith(NextResponse.rewrite(`/routeName/${country}`));
}