NestJS Dependency Injection - Overview

Video Explanation

Please find video explanation below:

Introduction

Lets first divide the entire term in two parts. "Dependency" and "Injection".

This suggests that there could be one dependency class which needs to be "injected" to another class (simplest of the example).

In nest.js, we normally inject providers (services) in controllers to perform some sort of business logic.

Please note that the task of service should not be authentication, authorization, validation, transformation and/or extending or overriding the function. Because, for all …

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