How to get a local IP address in Node.js?
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belongs to collection: Node.js programming Exercises
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For getting the IP address in node js, we need to include three modules - connect, net and request-ip. If you do not have these modules installed, let's first install these modules using the npm.
Open your command prompt and run the following commands one by one.
npm install connect npm install net npm install request-ip
We hope, you have successfully installed these modules. Now, create a file name 'getipaddress.js' and copy paste the following code.
getipaddress.js
Explanation of the above code:
The connect() is an extensible HTTP server framework for node using "plugins" known as middleware. The app stores all the added middleware and it is itself a function.
The 'app.use' is for using the middleware. The all middleware is added as stack and execute each incoming request one by one.
It checks the input for ip address. If it is, then it returns 0 for invalid IP, 4 for IP version 4 and 6 for IP version 6.
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