Express.js?? ????? IP ?? ??

?? ?? Node.js ?????? Express.js? ? ?????? ?? ????? ??????. Express ?????? ??? ?????? IP ??? ???? ??????? ???? req.ip ??? ???? ? ????. ??? ??????? ??? ?? ?? ??? ?? ?? ??????? ?????? IP? X-Forwarded-For ??? ??? ? ????. ??? ?? ?????? IP? ???? ????? ?? ?? ??? ??????.

const express = require('express');
const app = express();

app.use((req, res, next) => {
  const clientIp = req.headers['x-forwarded-for'] || req.connection.remoteAddress;
  console.log(`Client IP: ${clientIp}`);
  next();
});

app.get('/', (req, res) => {
  res.send('Hello World!');
});

app.listen(3000, () => {
  console.log('Server is running on port 3000');
});

? ???? ???? ??? X-Forwarded-For ??(?? ??)?? ?????? IP ??? ?????. ??? ??? req.connection.remoteAddress? ?????. ??? ?? ?????? ?? ??? ???? ??? IP ??? ?? ? ????.

IPQuery? IP ??? ??

?????? IP ??? ?? ? ??? ?? ? ?? ?? ??? ? ???? ???? ??? ???? ?? ? ????. IPQuery? ???? ?? ??? ??? API?, VPN ??, ?? ??, ?? ?????? ?? ??? ?????. IPv4? IPv6? ?? ???? IPQuery? ?? ?? ???? ?? ??? ????? ??? ??????? ??? ?????.

Express ???????? IPQuery ??

IPQuery? Express ??????? ????? ?? ??? ????.

1. Axios HTTP ????? ??

Axios? Node.js? ?? ?? HTTP ??????, HTTP ??? ???? ???. npm? ???? ?????.

   npm install axios

1. IPQuery? ???? ?? ???

IPQuery API? ??? ??? ??? ???? ??? ?????.

   const axios = require('axios');

   async function getIpInfo(ip) {
     try {
       const response = await axios.get(`https://api.ipquery.io/${ip}?format=json`);
       return response.data;
     } catch (error) {
       console.error(`Error fetching IP information: ${error}`);
       return null;
     }
   }

1. ????? IPQuery ??

getIpInfo ??? ????? Express ????? ?????.

   app.use(async (req, res, next) => {
     const clientIp = req.headers['x-forwarded-for'] || req.connection.remoteAddress;
     const ipInfo = await getIpInfo(clientIp);
     if (ipInfo) {
       console.log(`Client IP: ${clientIp}`);
       console.log(`Location: ${ipInfo.location.city}, ${ipInfo.location.country}`);
       console.log(`ISP: ${ipInfo.isp.org}`);
       console.log(`Risk Score: ${ipInfo.risk.risk_score}`);
     }
     next();
   });

? ????? ?????? IP ??? ????, IPQuery?? ?? ??? ????, ??, ISP, ?? ?? ? ?? ?? ??? ?????.

IPQuery? ?? ?? ??

IPQuery? ??? ??? ???? ??? ???? JSON ??? ?????.

{
  "ip": "1.1.1.1",
  "isp": {
    "asn": "AS13335",
    "org": "Cloudflare, Inc.",
    "isp": "Cloudflare, Inc."
  },
  "location": {
    "country": "Australia",
    "country_code": "AU",
    "city": "Sydney",
    "state": "New South Wales",
    "zipcode": "1001",
    "latitude": -33.854548400186665,
    "longitude": 151.20016200912815,
    "timezone": "Australia/Sydney",
    "localtime": "2024-09-03T22:22:52"
  },
  "risk": {
    "is_mobile": false,
    "is_vpn": false,
    "is_tor": false,
    "is_proxy": false,
    "is_datacenter": true,
    "risk_score": 0
  }
}

?? ?? ??? ??? ????.

• IP: ??? IP ?????.
• ISP: ASN, ??, ISP ??? ??? ??? ??? ???? ?? ?????.
• ??: ??, ??, ?, ?? ?? ?? ???
• ??: IP? ??? ????, VPN, Tor ??, ???, ??? ?? ? ?? ?? ??? ???? ??? ??? ??? ??? ?? ?????.

??? ??? IPQuery ??? ?????.

? ??? ?? API? IP? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!