Standard Node.js with Express lacks a consistent architecture and built-in dependency injection, leading to inconsistencies across projects.
Nest.js is a popular TypeScript-first backend framework built on Node.js that provides a standardized architecture and uses Express under the hood.
Nest.js offers a powerful command-line interface, built-in validation, dependency injection, and a modular architecture based on controllers and services.
Use the Nest CLI to generate a new project and explore the default structure, including the main entry point, controllers, services, and decorators.
Modify endpoint behavior by changing routes, setting custom HTTP status codes with `@HttpCode`, and capturing URL parameters using the `@Param` decorator.
Accelerate development by using the `nest g resource` command to scaffold a new module complete with a controller, service, and boilerplate CRUD endpoints.
Use the built-in `ValidationPipe` and decorators from the `class-validator` package to automatically validate incoming request bodies and DTOs.
Enable communication between services in different modules by exporting providers from one module and importing that module into another.
Nest.js is highly recommended for complex, team-based backend projects using TypeScript, but may be overkill for simple prototypes or small applications.
Jobs that call for the skills explored in this talk.