NestJS Core Architecture & Dependency Injection

1. Introduction

NestJS is a Node.js framework that follows a modular architecture to build scalable and maintainable backend applications.

It organizes backend code into different components such as Modules, Controllers and Providers.

One of the most important features of NestJS is Dependency Injection (DI), which allows developers to manage dependencies without manually creating objects.

In this blog, we will understand the core architectural components of NestJS and how they work together using practical examples.

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