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irika-system-logger

v1.2.0

Published

Structured logger with rotation, retention, console/file transports for Node 18+.

Downloads

342

Readme

Irika System Logger

高效的 JSON 行式 logger,內建檔案輪替、保存策略、批次寫入與串流讀取,適合多進程及長時間服務使用。

安裝

npm install irika-system-logger

快速使用

import { createLogger } from "irika-system-logger";

const logger = createLogger({
  app: "my-app",
  version: "1.0.0",
  logDir: "./logs",
  // 若不想在 console 顯示 ctx,可關閉(不影響檔案輸出內容)
  consoleIncludeContext: false
});

logger.info("service started", { traceId: "t-001" });

主要特性

  • JSON 行格式,支援自訂欄位與 child logger 繼承
  • 檔案輪替:依大小或日期切檔,寫入 EOF 校驗與下一檔案指標
  • 保存策略:依檔案數量、總大小或檔齡清理
  • 串流讀取:createLogStream 可依等級、traceId 篩選
  • 控制台輸出:彩色格式