🚀 Node.js Backend Development Roadmap

1️⃣ Prerequisites

✅ Basic JavaScript (ES6+) → Learn let/const, arrow functions, promises, async/await

✅ Understand how the web works (HTTP, REST, JSON, request/response cycle)

✅ Install Node.js & npm (Node Package Manager)

2️⃣ Learn Core Node.js

✅ Understanding Node.js architecture (Single-threaded, event-driven)

✅ Learn about the event loop & non-blocking I/O

✅ Work with File System (fs) for reading/writing files

✅ Learn process & environment variables

3️⃣ Learn Express.js (Fast Backend Framework)

✅ Setting up a server with Express.js

✅ Routing: Handling GET, POST, PUT, DELETE requests

✅ Middleware functions (body-parser, cors, helmet)

✅ Handling errors & exceptions

4️⃣ Work with Databases

✅ Learn MongoDB (NoSQL) or PostgreSQL/MySQL (SQL)