b-logger

Usage

const {debug,error,warn,info } = require("b-logger")("logger.tag")
debug("debug")
error("error")

debug,error,warn,info are logger functions. logger.tag is a name of the four functions.

//logger function
(message:string,...params:any[])=>void

Configure

b-logger read json and config log4js.

• current working directory/logger.json
• start up script's director/logger.json

Example:

{
  "level": "debug",
  "error": {
    "path": "./log/error.log",
    "fileNamePattern": "-dd"
  },
  "warn": {
    "path": "./log/warn.log",
    "fileNamePattern": "-dd"
  },
  "info": {
    "path": "./log/info.log",
    "fileNamePattern": "-dd"
  },
  "debug": {
    "path": "./log/debug.log",
    "fileNamePattern": "-dd"
  },
  "options":{
    "console":{
      "exclude":[
        ".*"
      ],
      "include":[
        "^debug"
      ]
    }
  }
}

pattern see here

options

There are two fields in options at the monent,console and file represent two types of logger.

exclude is an array of RegExp string that used to specify which loggers will be excluded (output nothing to console) include is an array of regexp string also and it was used to specify which loggers will be included.

If no exclude and include fields ,all the log will be output. If a logger's name matchs exclude and include, it will be included