如何在 vercel 边缘函数中获取客户端 IP 地址？

Question

我正在向 Vercel 边缘函数发出 GET 请求，但似乎无法在 API 函数内获取 IP 地址。

所有这些标题值都显示

undefined

export const config = {
    runtime: "edge",
  };
  
  export default async function handler(
    req: NextApiRequest,
    res: NextApiResponse<APIResponseData>
  ) {
    
    console.log("realip", req.headers["x-real-ip"]);
    console.log("forwardedfor", req.headers["x-forwarded-for"]);
    console.log("vercelforwardedfor", req.headers["x-vercel-forwarded-for"]);
    console.log("x-vercel-ip-country", req.headers["x-vercel-ip-country"]);
  
  
    return new Response(
      JSON.stringify({
        data: {
          data: "ok",
        },
      }),
      {
        status: 200,
        headers: {
          "content-type": "application/json"
        },
      }
    );
  }
  

Answer 1

这有效：

边缘功能：

import { ipAddress } from "@vercel/edge";
export const config = {
  runtime: "edge",
};
export default function (request: Request) {
  const ip = ipAddress(request) || "unknown";
  return;

  new Response(
    `<h1>Your IP is 
${ip}
</h1>`,
    {
      headers: {
        "content-type": "text/html",
      },
    }
  );
}

边缘中间件：

import { ipAddress } from "@vercel/edge";
export const config = {
  runtime: "edge",
};
export default function (request: Request) {
  const ip = ipAddress(request) || "unknown";
  return;

  new Response(
    `<h1>Your IP is 
${ip}
</h1>`,
    {
      headers: {
        "content-type": "text/html",
      },
    }
  );
}

参考：https://vercel.com/docs/concepts/functions/edge-functions/vercel-edge-package#ipaddress

Answer 2

以下是您应该检查的一些相关链接：

• 有关检索客户端 IP 地址的 Vercel 文档、
• Node.js 文档

  req.socket.localAddress

根据这个，你应该可以通过以下代码获取它：

export const config = {
  runtime: "edge",
};

export default async function handler(
  req,
  res
) {
  console.log({ip: req.socket.localAddress});

  return {
    status: 200,
    body: JSON.stringify({
      data: "ok",
    }),
    headers: {
      "content-type": "application/json",
    },
  };
}