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@croco/events-inmemory

v0.0.2

Published

`@croco/events-core`용 인메모리 이벤트 버스 구현체입니다. TypeDI와 통합되며, 동시 실행 수를 제한하고 백프레셔를 제어할 수 있습니다.

Downloads

168

Readme

@croco/events-inmemory

@croco/events-core용 인메모리 이벤트 버스 구현체입니다. TypeDI와 통합되며, 동시 실행 수를 제한하고 백프레셔를 제어할 수 있습니다.

설치

pnpm add @croco/events-inmemory @croco/events-core typedi reflect-metadata

사용법

import "reflect-metadata";
import { EventBusConfig } from "@croco/events-core";
import { InMemoryEventBus } from "@croco/events-inmemory";

const config = EventBusConfig.getInstance();
config.setEventBus(
  new InMemoryEventBus({
    maxConcurrency: 10,
    backpressureStrategy: "block",
  }),
);

API 레퍼런스

  • InMemoryEventBus: publish, subscribe, unsubscribe, clear 제공
  • InMemoryEventBusOptions: maxConcurrency, backpressureStrategy
  • BackpressureStrategy: drop, block, error
  • EventPublishFailedError: 핸들러 실패를 집계해 반환하는 에러
  • BackpressureExceededProblem: 동시성 한도 초과 시 발생하는 Problem

동작 특징

  • 기본 maxConcurrency100
  • block 전략은 슬롯이 생길 때까지 대기
  • drop 전략은 초과 이벤트를 조용히 무시
  • error 전략은 즉시 Problem을 발생
  • OpenTelemetry 활성 시 발행 Span과 핸들러 Span을 자동 기록