NodeJS Tutorial in Hindi #73 - Environment Variables in Node.js using dotenv

Pubblicato il: 14 novembre 2025
sul canale di: Mohit Decodes

332

In this video, we’ll learn how to use environment variables in Node.js using the dotenv package.
Environment variables help you store secret keys, config values, and sensitive information safely without exposing them in code.

We’ll create a .env file, load it using dotenv, and access values with process.env.
This tutorial is perfect for beginners working with APIs, databases, authentication, and production-level Node.js apps.

📘 What You’ll Learn
-- What are environment variables?
-- Why .env file is important in Node.js
-- Install and use dotenv package
-- Create .env file with PORT, APP_NAME, SECRET_KEY
-- Load values using process.env.VARIABLE_NAME
-- Keep secrets safe (no push to GitHub)
-- How dotenv works in development vs production

⚙️ Tech Stack
Node.js
Express.js
dotenv
VS Code

📢 Resources:
👉 NodeJS Documentation -https://nodejs.org/docs/latest/api/
👉 ExpressJS Documentation -https://expressjs.com/en/starter/inst...
👉 MongoDB Documentation -https://www.mongodb.com/docs/
👉 VS Code Download Link - https://code.visualstudio.com/
👉 Github Code Download Link - https://github.com/mohitdjcet/mongoDB...

📂 Playlist Links:
NodeJS Full Course Video (Hindi):    • Complete Node.js + Express.js + MongoDB Co...
JavaScript Full Course Video (Hindi):    • JavaScript Full Course 2025  | 4 Projects ...
React 19 Full Course Video (Hindi):    • ReactJS Full Course in Hindi – Beginner to...
HTML Full Course Video (Hindi):    • HTML Full Course with Live Project | Learn...
CSS Full Course Video (Hindi):    • CSS Full Course in 2 Hours (2025) | Beginn...
Git and GitHib Copilot Full Course Video (Hindi):    • GitHub Copilot Full Course in 1 Video | Gi...
Python Full Course Video (Hindi):    • Python Full Course in Hindi 2025 | Complet...
Django Full Course Video (Hindi):    • Django Tutorial in Hindi 2026 | Complete D...

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