https://github.com/lete114/get-user-ip

一个轻量、小巧的Node.js模块，用于检索请求用户的IP地址 | A lightweight, small Node.js module to retrieve the IP address of the requesting user
https://github.com/lete114/get-user-ip

client-ip get-client-ip get-request-ip get-user-ip request-ip user-ip

Last synced: about 2 months ago
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一个轻量、小巧的Node.js模块，用于检索请求用户的IP地址 | A lightweight, small Node.js module to retrieve the IP address of the requesting user

• Host: GitHub
• URL: https://github.com/lete114/get-user-ip
• Owner: Lete114
• License: mit
• Created: 2021-12-10T12:06:38.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2024-05-21T15:29:48.000Z (7 months ago)
• Last Synced: 2024-09-19T10:17:50.654Z (3 months ago)
• Topics: client-ip, get-client-ip, get-request-ip, get-user-ip, request-ip, user-ip
• Language: JavaScript
• Homepage: https://get-user-ip.vercel.app
• Size: 35.2 KB
• Stars: 10
• Watchers: 1
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        


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Get-User-IP

A lightweight, small Node.js module to retrieve the IP address of the requesting user




    

    

    



## Installation

```bash

npm install get-user-ip --save

```

## Getting Started

```javascript

const GetUserIP = require('get-user-ip')

const http = require('http')

const server = http.createServer((req,res)=>{

  res.end(GetUserIP(req))

})

server.listen(6870)

// on localhost you'll see 127.0.0.1 if you're using IPv4

// or ::1, ::ffff:127.0.0.1 if you're using IPv6

```

If there are some special cases, such as the use of `CloudFlare`, you can append a second parameter, which is an array so it can contain more than one params

```javascript

const server = http.createServer((req,res)=>{

  // This gives priority to getting headers.cf-connecting-ip, and if it doesn't exist, continue with the default parameters

  res.end(GetUserIP(req,['headers.cf-connecting-ip']))

})

```

## How It Works

It looks for a specific header in the request and returns the `0.0.0.0` default if it does not exist

The user IP is determined by the following order

```javascript

const defaultHeaders = [

  'headers.x-client-ip',

  'headers.x-real-ip',

  'headers.x-forwarded-for', // This header will return multiple IP addresses, Format: (Client IP, Proxy 1 IP, Proxy 2 IP...) So return the first

  'connection.remoteAddress',

  'socket.remoteAddress',

  'connection.socket.remoteAddress'

]

```