🐳 MODULE 6: DevOps & Backend Knowledge (Preferred Skills)

As frontend developers grow into full-stack or senior roles, backend and DevOps knowledge becomes a force multiplier . You don’t need to become a DevOps engineer—but you must understand how systems work beyond the UI. This module builds that mindset. ✅ 6.1 Node.js Basics – Understanding the Server Brain What is Node.js (In Simple Words)? Node.js allows JavaScript to run on the server. Instead of just handling clicks and animations, JavaScript now: Handles requests Talks to databases Manages users Secures APIs Think of Node.js as the engine room behind your frontend. Middleware – The Invisible Checkpoints Middleware is code that runs between the request and the response . Example real-life flow: User sends request Middleware checks authentication Middleware validates data Controller handles logic Response is sent Common uses: Logging Authentication Error handling Request validation 👉 Without middleware, backend code becomes messy and unsafe. Authentication Flow – Who Are You? Authentica