Maximilian Otto

Nest.js - TypeScript in the backend can also be clean

Generate a full CRUD module with one command. See how Nest.js brings a clean, maintainable architecture to your TypeScript backend.

Nest.js - TypeScript in the backend can also be clean
#1about 3 minutes

The architectural challenges of traditional Node.js backends

Standard Node.js with Express lacks a consistent architecture and built-in dependency injection, leading to inconsistencies across projects.

#2about 3 minutes

An introduction to the Nest.js framework

Nest.js is a popular TypeScript-first backend framework built on Node.js that provides a standardized architecture and uses Express under the hood.

#3about 2 minutes

Understanding the core features and modular architecture

Nest.js offers a powerful command-line interface, built-in validation, dependency injection, and a modular architecture based on controllers and services.

#4about 5 minutes

Scaffolding and exploring a new Nest.js application

Use the Nest CLI to generate a new project and explore the default structure, including the main entry point, controllers, services, and decorators.

#5about 2 minutes

Customizing REST API endpoints and parameters

Modify endpoint behavior by changing routes, setting custom HTTP status codes with `@HttpCode`, and capturing URL parameters using the `@Param` decorator.

#6about 2 minutes

Generating resources and CRUD endpoints with the CLI

Accelerate development by using the `nest g resource` command to scaffold a new module complete with a controller, service, and boilerplate CRUD endpoints.

#7about 4 minutes

Implementing automatic input validation with pipes

Use the built-in `ValidationPipe` and decorators from the `class-validator` package to automatically validate incoming request bodies and DTOs.

#8about 3 minutes

Managing dependencies between different modules

Enable communication between services in different modules by exporting providers from one module and importing that module into another.

#9about 1 minute

Deciding when to use Nest.js for your projects

Nest.js is highly recommended for complex, team-based backend projects using TypeScript, but may be overkill for simple prototypes or small applications.

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