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backend-patterns

Node.js, Express, Next.js API 라우트를 위한 백엔드 아키텍처 패턴, API 설계, 데이터베이스 최적화 및 서버 사이드 모범 사례.

docs/ko-KR/skills/backend-patterns/SKILL.md

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# 백엔드 개발 패턴

확장 가능한 서버 사이드 애플리케이션을 위한 백엔드 아키텍처 패턴과 모범 사례.

## 활성화 시점

- REST 또는 GraphQL API 엔드포인트를 설계할 때
- Repository, Service 또는 Controller 레이어를 구현할 때
- 데이터베이스 쿼리를 최적화할 때 (N+1, 인덱싱, 커넥션 풀링)
- 캐싱을 추가할 때 (Redis, 인메모리, HTTP 캐시 헤더)
- 백그라운드 작업이나 비동기 처리를 설정할 때
- API를 위한 에러 처리 및 유효성 검사를 구조화할 때
- 미들웨어를 구축할 때 (인증, 로깅, 요청 제한)