NestJS DDD Patterns

Comprehensive Domain-Driven Design patterns and templates for NestJS backend development with CQRS architecture. This skill provides battle-tested patterns for building maintainable, scalable backend systems following DDD principles.

When to Apply

Use this skill when:

• Building new domain modules in NestJS
• Implementing aggregates, entities, and value objects
• Setting up CQRS command and query handlers
• Creating repository patterns with clean architecture
• Structuring domain services and business logic
• Ensuring separation of concerns across layers

Architecture Overview

The patterns follow a 4-layer DDD architecture: