I have a question about the nextjs page middleware, see here, according to the documentation the request object should contain geo, IP, ua, cookies and nexturl properties.

So all I am trying to do is get the users location through page middleware like this:

import { NextRequest, NextResponse } from 'next/server';

export async function middleware(req) {
  const { nextUrl, geo } = req;
  console.log(geo) //=> always empty {}
  const country = geo.country || 'US'
  nextUrl.searchParams.set('locale', country);


  return NextResponse.rewrite(nextUrl);
}

But when I run my project locally the geolocation is an empty object, why?

Will all hosting providers send geolocation data, or does it depend on the provider?