Getting Started with NestJs - Crash Course

Introduction

NestJS is a progressive Node.js framework for building efficient, scalable server-side applications. In this 11-episode crash course, I cover everything you need to know about NestJs foundations to start creating APIs quickly and confidently.

The final code is in this GitHub repo.

Episode 1 - Get Started

Install NestJS, explore and get your first application running.

Episode 2 - Controllers

Learn how controllers handle incoming requests and return responses in your API.

Episode 3 - Providers

Understand providers and how they power dependency injection in NestJS applications.

Episode 4 - Modules

Discover how modules organize your application into cohesive, reusable building blocks.

Episode 5 - Middleware

Learn how to create and use middleware to handle requests before they reach controllers.

Episode 6 - Exception Filters

Handle errors gracefully with exception filters, and return consistent API responses.

Episode 7 - Pipes

Use pipes for input validation and data transformation in your routes.

Episode 8 - Guards

Protect routes and enforce permissions with guards for authentication and roles.

Episode 9 - Interceptors

Modify requests and responses, add logging, and handle cross-cutting concerns with interceptors.

Episode 10 - Custom Decorators

Create your own decorators to simplify repetitive logic in controllers and services.

Episode 11 - Request Lifecycle

Understand the complete lifecycle of a request inside a NestJS application.