log4js.json

{
  "appenders": {
    "console": {
      "type": "console"
    },
    "rule-app": {
      "type": "dateFile",
      "filename": "logs/app.log",
      "maxLogSize": 10485760,
      "numBackups": 10,
      "keepFileExt": true
    },
    "dev": {
      "type": "dateFile",
      "filename": "logs/dev.log",
      "maxLogSize": 10485760,
      "keepFileExt": true
    },
    "error": {
      "type": "dateFile",
      "filename": "logs/error.log",
      "maxLogSize": 10485760,
      "keepFileExt": true
    },
    "rule-error": {
      "type": "logLevelFilter",
      "level": "warn",
      "appender": "error"
    }
  },
  "categories": {
    "default": {
      "appenders": [
        "rule-app",
        "rule-error",
        "console"
      ],
      "level": "all"
    },
    "dev": {
      "appenders": [
        "dev"
      ],
      "level": "all"
    }
  },
  "level": "debug"
}