@mdaemon/logfile NPM

@mdaemon/logfile, A node only async logging utility

Not applicable to a browser context.

Install

$ npm install @mdaemon/logfile --save

Node CommonJS

    const LogFile = require("@mdaemon/logfile/dist/logfile.cjs");

Node Modlues

    import LogFile from "@mdaemon/logfile/dist/logfile.mjs";

LogFile

  /* default LogFileOptions 
   * logLevel: 0 (INFO)
   * dir: "./logs"
   * fileFormat: "log-%DATE%.log"
   * logToConsole: false
   * rollover: true
   * logStr: "%DATE% %TIME% | %LEVEL% | %MESSAGE%";
   * startLog: "-----------------------------------------\n" +
   *           "------- Log Started: %DATETIME%\n" +
   *           "-----------------------------------------\n";
   *    
   * endLog: "-----------------------------------------\n" +
   *         "------- Log Ended: %DATETIME%\n" +
   *         "-----------------------------------------\n";
  */

  const { INFO, ERROR, WARN, CRITICAL, DEBUG } = LogFile;
  const logFile = new LogFile({ logLevel: DEBUG });

  logFile.start();

  logFile.log("There was an error", 2);

  logFile.stop();
  /* file result 
  -----------------------------------------
  ------- Log Started: Fri, 08 Mar 2024 16:07:19 GMT
  -----------------------------------------
  2024-03-08 16:07:19 | ERROR | There was an error
  -----------------------------------------
  ------- Log Ended: Fri, 08 Mar 2024 16:07:19 GMT
  -----------------------------------------
  */

LogFile Options

  // set the log str
  logFile.setLogStr("%DATE% %TIME% | %LEVEL% | %MESSAGE%");

  // set the log dir
  logFile.setLogDir("./logs");

  // set the rollover boolean
  logFile.setRollover(true);

  // set the log level
  logFile.setLogLevel(DEBUG);

  // set the file name format
  logFile.setFileFormat("log-%DATE%.log");

  // set the log to console boolean
  logFile.setLogToConsole(true);

  // set the start log string
  logFile.setStartLog("-----------------------------------------\n");

  // set the end log string
  logFile.setEndLog("-----------------------------------------\n");

  // log help to the console
  logFile.getHelp();