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@croco/framework-context

v0.0.2

Published

Croco의 기반 계층입니다. DI 컨테이너, 요청 컨텍스트, 메타데이터 저장소, 종료 훅 관리를 제공합니다.

Readme

@croco/framework-context

Croco의 기반 계층입니다. DI 컨테이너, 요청 컨텍스트, 메타데이터 저장소, 종료 훅 관리를 제공합니다.

설치

pnpm add @croco/framework-context reflect-metadata typedi

사용법

컴포넌트 등록과 조회

import "reflect-metadata";
import { Component, Container } from "@croco/framework-context";

@Component()
class UserService {
  getName() {
    return "croco";
  }
}

const service = Container.get(UserService);

요청 컨텍스트 실행

import { Context } from "@croco/framework-context";

const requestId = await Context.run({ requestId: "req-123" }, async () => {
  return Context.getRequestId();
});

종료 훅 등록

import { OnShutdown, ShutdownManager } from "@croco/framework-context";

class AppLifecycle {
  @OnShutdown()
  async close(): Promise<void> {}
}

ShutdownManager.getInstance().listen();

API 레퍼런스

  • Container: 의존성 등록, 조회, 초기화
  • Component: 클래스를 singleton, request, transient scope로 등록
  • Context: AsyncLocalStorage 기반 요청 컨텍스트 실행과 조회
  • MetadataStorage: 데코레이터 메타데이터 저장과 조회
  • MiddlewareChain: onion 패턴 미들웨어 실행
  • ShutdownManager, OnShutdown: graceful shutdown 훅 수집과 실행
  • LOGGER_TOKEN, TRANSACTION_CONTEXT_TOKEN: 공용 DI 토큰
  • CircularDependencyProblem, MiddlewareProblem, ShutdownTimeoutProblem: 기반 계층 Problem 타입

Scope

  • singleton: 애플리케이션 전체에서 하나의 인스턴스
  • request: Context.run() 범위마다 하나의 인스턴스
  • transient: 조회할 때마다 새 인스턴스