Logger

Please don't use console.log(message)! Instead of that use built in logging system Mep.Log.debug(module, message). For more details please check reference for Log class.

Logger configuration

Configuration can be done via configuration file located under src/config directory.

Sample configuration:

"Log": {
  "console" :{
    "active" : true,
    "outputMode" : "short",
    "color": true
  },
  "file" :{
    "active" : false,
    "file" : "javascript.log",
    "period" : "1d",
    "count" : 3
  },
  "elasticsearch": {
    "active" : false,
    "level" : "debug",
    "host" : "http://localhost:9200",
    "indexPattern" : "[mep2_logs-]YYYY-MM-DD",
    "type": "log"
  }
},

Loggers

console

Console logger parameters:

• active (false): true/false : activate console logger
• outputMode (short): short|long|simple|json|bunyan see bunyan-format
• color (true): toggles colors in output

By default log level is debug.

file

File logger parameters:

• active (false): true/false : activate file logger
• file (javascript.log): log filename, either an absolute path, or relative to ./logs directory
• period (1d): rotate log every day
• count (3): backup only

By default log level is debug.

elasticsearch

• active (false): true/false : activate elasticsearch logger
• level (debug): debug/info : debug level
• host (http://localhost:9200) : elasticsearch server http address
• index (mep2_logs) : elasticsearch index name. (no pattern allowed here)
• indexPattern ([mep2_logs-]YYYY-MM-DD) : elasticsearch index pattern. Can be a static name or a dynamic with YYYY-MM-DD pattern.
• type (log): elasticsearch type

If index is configured, indexPattern is ignored.

Performance Parameter

Log are impacted by "performance" parameter, if "performance" == true : Log level is limited to "info" for all loggers.