MERN Stack Project Development Lecture 3 | User Login & JWT Secret Key Authentication

In Lecture 3 of our MERN Stack Project Development series, we implement the User Login API with JWT authentication.

You’ll learn:
✅ What is a JWT Secret Key and why it’s important
✅ How to store the secret key securely in the .env file
✅ Creating a Login Controller for users
✅ Comparing hashed passwords using bcryptjs
✅ Generating and returning a JWT token on successful login
✅ Testing the Login API in Postman

By the end of this lecture, you’ll have a secure login system for your MERN stack online course platform.

📌 Series Context:
This is part of our real-world Online Course Platform project built with the MERN stack.

#mernstack #nodejs #expressjs #jwt #authentication #webdevelopment #mongodb #securelogin

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