Understanding Layered Architecture | What It Is and Why You Need It #2
In this video, we will dive deep into what exactly Layered Architecture is and why developers should use it to build clean, scalable, and maintainable backends.
You’ll understand the core concept, how it fits into real-world projects, and which SOLID principles it follows, all explained in a simple way.
This is Episode/Video 2 of the Layered Architecture in Node.js playlist, where we’ll go from fundamentals to a real-world project, layer by layer! 🚀
📘 What You’ll Learn
What is Layered Architecture (in simple terms)
Why use Layered Architecture for Node.js backends
How it aligns with SOLID principles
The importance of separation of concerns
How it helps scalability, testability, and clean structure
⏱️ Video Timeline
00:00 - Introduction
00:50 - What 4 Layers of Layered Architecture?
01:24 - Explaination using real world example
02:35 - What is Service Layer and meaning of Business Logic?
03:58 - What is Repository Layer?
03:54 - What is Database/Modal Layer?
04:20 - Comparing Normal 3 Layer Architecture vs 4 Layered Architecture
08:06 - Which SOLID Principles can we used in this Architecture?
08:45 - What and how Single Responsibility Principle (SRP) is used here?
09:50 - What and how Dependency Inversion Principle (DIP) is used here?
13:22 - What and how Open/Closed Principle (OCP) is used here?
16:32 - What Doubts you can have related to this Architecture?
17:06 - How to explain Layered Architecture in Interviews?
🎯 Watch the Full Playlist:
👉 Layered Architecture in Node.js - • Layered Architecture in Node.js | Each Lay...
👉 All Videos link:
1. • Introduction to Layered Architecture in No...
2. • Understanding Layered Architecture | What ...
3. • Implementing Router Layer in Layered Archi...
4. • Implementing Repository Layer in Layered A...
5. • Service Layer Explained in the Right Way |...
6. • Finally! The Complete Layered Architecture...
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