How to Use Environment Variables in Node.js

How to Use Environment Variables in Node.js

Environment variables are a fundamental part of developing with Node.js - Instead of defining the variables directly, you can use Environmental variables in node.js. You can use the Environmental variable anytime when you want to change the value depending on the environment. How To Use Environment Variables in Node.js

Instead of defining the variables directly, you can use Environmental variables in node.js. You can use the Environmental variable anytime when you want to change the value depending on the environment. There are various use cases here.

If you start using the environmental variable, you won’t face issues where the client says “It doesn’t work in my system”. This guide will cover all the things you should know about defining the Environmental variables and how you can use them in node.js. It has a lot to do with the .env file a well as with server.js. So, let’s begin the steps and see the steps.

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Please read the code as you will have to enter some of the information such as key, port number, etc. We have mentioned it in the code itself and if possible, we have also added the comments.

Step 1 – Preparation

Step 2 – Focus on .gitingore

Step 3 – Create package.json

Step 4 – Install and edit env file

Step 5 – Find the Variables

Step 6 – Reduce the Dependencies

Step 7 – NPM Scripts

Step 8 – NPM Extensions

Step 9 – Finalize

nodejs node node.js

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