@hkube/logger

Logger

the best js logger ever :)

The following options available

• running logs with elastic fluentd conosle and view in kibana
• costomize your log level and colors by sending it from the logger constructor the following availble by default debug,info,warning,error,critical

       const config = {
          levels: {
              silly: 0,
              debug: 1,
              info: 2,
              warning: 3,
              error: 4,
              critical: 5
          },
          colors: {
              silly: 'white',
              debug: 'grey',
              info: 'white',
              warning: 'yellow',
              error: 'red',
              critical: 'red'
          }
      };
  

• creating multiple log that differnts from each other
• lazy loading your log from each module Logger.GetLogFromContanier(ServiceName)
• controling log trace level and update it during run using updateTraceLevel(levelNumber)
• an abiltiy to set component name and other metaData log.info('hi info test',{component: 'test-Component'});
• costomize your log colors with colors api for example log.info('hi info test'.green); or log.info(('hi info test')[green]);
• builtin metadata addition such as printing call stack trace for error and critical
• additions with extra details for logs during run by setting extraDetails flag to true will print this as extrad details {{ function: null file: /home/matyz/dev/vod/core/logger/test/test.js lineNumber: 160 }}
• built in template that includes time log level and component name September 1st 2016, 12:26:52 pm -> info: ( test-Component ) hi info test

running

in order to run you can clone the repo or using npm install logger

configuration

transport : {
    console: true,
    file: true,
    redis : true
    logstash: true,
},
console: {
    json: true,
	colors: true
},
file: {
    json: true,
	colors: true
    level: 'info',
    silent: false,
    eol: null,
    filename: 'data/info.log',
    maxsize: 10000,
    maxFiles: 1000,
    tailable: true,
    maxRetries: 2,
    zippedArchive: false,
    options: { flags: 'a' },
},
redis: {
    json: true,
	colors: true
    host: 'localhost',
    port: 6379,
    sentinel: true,
    verbosityLevelByRedis: true,
    level: 'error'
},
logstash : {
    json: true,
	colors: true
    logstashURL: '127.0.0.1',
    logstashPort: 28777
},
options: {
    extraDetails: false
}

usage example:

init

const Logger = require('logger');
const log = new Logger('test',relativeConfig);

get created logger

• use this if know the log container name

const log = Logger.GetLogFromContainer(ServiceName);

• don't need to send container name if set this logger as default with isDefault:true

const log = Logger.GetLogFromContainer();

log printing

  log.info('running application in ' + conf.env() + ' environment', {component: componentName.MAIN});    
  log.error('Error response, status=' + res.status + ', message=' + res.error.message, {component: componentName.REST_API});

redis config

`hkube:logs:consoleVerbosity` key set the console log verbosity default `info`
`hkube:logs:clientVerbosity` key set the ui log verbosity default `error`

ENJOY :)