我正在使用Next js应用程序，我试图获取客户端用户的IP地址和地理位置，但我得到了我部署的vercel服务器的ID地址。
我试过middleware：

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

export async function middleware(request: NextRequest, _next: NextFetchEvent) {
    const { nextUrl: url, geo } = request
    const country = geo?.country

    // Clone the request headers and set a new header `x-hello-from-middleware1`
    const requestHeaders = new Headers(request.headers)
    requestHeaders.set('country', country||'EG')
    
    // You can also set request headers in NextResponse.rewrite
    const response = NextResponse.next({
        request: {
            // New request headers
            headers: requestHeaders,
        },
    })
    
    return response
}

然后，当从api目录中的header使用country时：

export default async (req:MyRequest, res:NextApiResponse) => {
   if (req.method === 'GET') {
      const country= req.headers.country;
   }
}

我找到服务器的国家了！！
我也试过：

export default async (req:MyRequest, res:NextApiResponse) => {
   if (req.method === 'GET') {
      const forwarded = req.headers['x-forwarded-for'];
      const ip = typeof forwarded === 'string' ? forwarded.split(/, /)[0] : req.socket.remoteAddress;
   }
}

但结果是一样的！主机服务器的IP。
为什么？！解决办法是什么？