Node js Express Get Client IP Address Example

Node js express get client ip address example; In this tutorial, i am going to show you how to get User’s/client IP address in Node.js (Express.js)

An IP address, or Internet Protocol address, is a series of numbers that identifies any device on a network. Computers use IP addresses to communicate with each other both over the internet as well as on other networks.

The user IP is determined by the following order:

1. X-Client-IP
2. X-Forwarded-For (Header may return multiple IP addresses in the format: “client IP, proxy 1 IP, proxy 2 IP”, so we take the the first one.)
3. CF-Connecting-IP (Cloudflare)
4. Fastly-Client-Ip (Fastly CDN and Firebase hosting header when forwared to a cloud function)
5. True-Client-Ip (Akamai and Cloudflare)
6. X-Real-IP (Nginx proxy/FastCGI)
7. X-Cluster-Client-IP (Rackspace LB, Riverbed Stingray)
8. X-Forwarded, Forwarded-For and Forwarded (Variations of #2)
9. req.connection.remoteAddress
10. req.socket.remoteAddress
11. req.connection.socket.remoteAddress
12. req.info.remoteAddress

Get User’s/Client IP Address in Node JS Express

• Step 1 - Create New Node JS App
• Step 2 - Install Express and request-ip Module
• Step 3 - Create Server.js File
• Step 4 - Import Request Ip Module in Server.js File
• Step 5 - Start App Server

Step 1 - Create New Node JS App

Create new node js app; execute the following command on terminal to install node js app:

mkdir my-app
cd my-app
npm init -y

Step 2 - Install Express and request-ip Module

Install experss and request-ip module; eecute the following command to install express and ip-address dependencies in your node js app:

npm install express
npm install request-ip --save

Step 3 - Create Server.js File

Create server.js file and add the following code into it:

var express = require('express');
var app = express();
app.get('/',function(request, response) {
    var clientIp = requestIp.getClientIp(request);
    console.log(clientIp);
});
app.listen(3000, () => console.log(`App listening on port 3000`))

Step 4 - Import Request Ip Module in Server.js File

Import request ip module in server.js file:

var requestIp = require('request-ip');

Step 5 - Start App Server

Start app server; execute the following command on terminal:

//run the below command
npm start
after run this command open your browser and hit 
http://127.0.0.1:3000/

Conclusion

Node js express get client ip address example. In this tutorial, you have learned how to get client ip address in node js and express js using request ip.

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