Why Use dotenv & cors in Node.js + Express | Beginner’s Explanation with Examples

🛡️ In this video, understand why we use dotenv and cors in Node.js + Express apps. Learn the importance of environment variables and how to protect sensitive data using .env files, and why Cross-Origin Resource Sharing (CORS) is critical in API development.

🎯 This is part of our backend development series, where we break down every concept you need to master Node.js and Express.

📌 What You'll Learn:
What is dotenv and why it is used
Setting up .env files safely
What is CORS and why it matters
How to use cors middleware in Express
Real-world examples with code

🔗 GitHub Source Code :- https://github.com/Mrtasin/Complete-B...

🧑‍💻 Perfect for backend beginners and aspiring full-stack developers.

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#Nodejs #Expressjs #dotenv #cors #BackendTutorial #APIDevelopment #EnvironmentVariables #CrossOrigin #NodejsForBeginners #FullStackDeveloper #WebDevelopment #RestAPI #JavaScript #SecureBackend



Playlist Link :-    • Complete Backend Development with Node.js ...  

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