🚀 Day 4 of my 30 Days of Learning Challenge
Next day iin training was all about exploring the backend — and I did that through NestJS, a progressive Node.js framework built with TypeScript.
At first, I was overwhelmed. Coming from traditional JavaScript and small backend scripts, the modular architecture of NestJS felt complex. But once I got hands-on, everything started to click.
I learned how NestJS uses:
- Controllers to handle incoming requests
- Services to contain business logic
- Modules to organize features into scalable units
The decorator-based syntax (@Controller, @Injectable, @get) was strange at first, but it gave my code clear structure and intention. By the end of the session, I had created a simple /users route that returned mock data via a service — and it worked beautifully.
What I appreciated most was how opinionated NestJS is. It guides you toward building things "the right way" — enforcing clean separation of concerns, dependency injection, and testability. These are the things that make real-world software maintainable, especially on larger teams.
This was also my first time understanding the MVC pattern not as a theory but as a practical architecture. It made me think beyond "making things work" and more about building systems that are scalable and maintainable.
💬 Question for Readers:
If you’ve used NestJS or another backend framework, what was the “aha!” moment that made it finally click for you?
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