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@monderks/nestjs-core

v0.1.0

Published

Filtros, errores de dominio, DTOs y value objects reutilizables para microservicios NestJS.

Readme

Monderks NestJS Core

Librería base para proyectos NestJS que implementa arquitectura limpia (Clean Architecture) y Domain-Driven Design (DDD), con filtros globales, errores de dominio, DTOs y value objects reutilizables.

Características

  • 🚨 Filtros globales para excepciones de dominio
  • ⚠️ Clases de errores personalizadas (DomainError, InvalidArgumentError, etc.)
  • 📦 DTOs base para casos de uso
  • 🧱 Value objects reutilizables
  • 🧪 Estructura coherente con DDD y microservicios

Instalación

npm install @monderks/nestjs-core

O con pnpm:

pnpm add @monderks/nestjs-core

Uso

1. Registrar el filtro global de errores

// main.ts
import { DomainExceptionFilter } from '@monderks/nestjs-core';

app.useGlobalFilters(new DomainExceptionFilter());

También podés usar APP_FILTER con inyección de dependencias en un CoreModule.

2. Extender errores de dominio

import { DomainError } from '@monderks/nestjs-core';

export class ProductAlreadyExistsError extends DomainError {
    constructor(productId: string) {
        super(`Producto con ID ${productId} ya existe`, 'ProductAlreadyExists');
    }
}

3. Usar DTOs comunes

import { UseCaseResponseDto } from '@monderks/nestjs-core';

export class GetProductResponse extends UseCaseResponseDto {
    constructor(
        public readonly id: string,
        public readonly name: string,
    ) {
        super();
    }
}

Estructura

@monderks/nestjs-core/
├── filters/              # Filtros globales como DomainExceptionFilter
├── errors/               # Clases base para errores del dominio
├── dto/                  # DTOs base para casos de uso
├── value-objects/        # VOs reutilizables (ej: EmailVO, UUIDVO, etc.)
└── index.ts              # Exporta todo de forma unificada

Recomendación de uso

Este paquete está diseñado para ser utilizado como base en tus microservicios NestJS, asegurando:

  • Un manejo de errores consistente y tipado
  • Reutilización de DTOs entre módulos
  • Separación clara de dominio, aplicación e infraestructura

Licencia

MIT — © Alejo Tomás Clifton Goldney