AgentSkillsCN

create-domain-event

按照领域驱动设计的模式创建领域事件及其处理器。当需要发布领域事件以实现异步响应时，请使用此方法。

SKILL.md
--- frontmatter
name: create-domain-event
description: Create a domain event and its handler following DDD patterns. Use when you need to publish domain events for asynchronous reactions.
argument-hint: [module-name] [event-name]
disable-model-invocation: true

Create a domain event "$1" and its handler in the $0 module.

Create these files:

  1. •

    src/modules/$0/domain/events/$1.ts

    • •Pure data event extending DomainEvent base class
    • •NO framework decorators (no @Injectable, @OnEvent)
    • •Only domain data
  2. •

    src/modules/$0/application/events/handlers/$1.handler.ts

    • •Event handler with framework support
    • •Use @Injectable() and @OnEvent() decorators
    • •Implement business logic that reacts to the event

Requirements:

  • •Domain Event (domain layer): Pure TypeScript, extends DomainEvent from '@shared/ddd/DomainEvent.base'
  • •Event Handler (application layer): NestJS decorators, implements IEventHandler
  • •Follow the pattern: Domain emits data-only events, Application reacts with handlers
  • •Reference the OrderCreated event and handler as examples

IMPORTANT: Respect layer boundaries:

  • •Domain events = Pure data, no framework dependencies
  • •Event handlers = Framework integration (@Injectable, @OnEvent)