g4-logger

A simple logger that is configured with some niceties such as listening for a SIGUSR2 to change log levels

Log Levels

We use syslog levels RFC-5424 for the level definitions.

• 0 = Emergency (panic) - Only log panic conditions
• 1 = Alert (alert) - Only notify on conditions that cause immediate failure from the local system.
• 2 = Critical (crit) - Notify on conditions that cause immediate failure from the local system or any secondary system or sub system.
• 3 = Error (error) - Failures that can be recovered from.
• 4 = Warning (warn) - Indicator that an error will occur if action is not taken.
• 5 = Notice (notice) - Normal but significant condition. May indicate a potential problem.
• 6 = Informational (info) - Normal operational messages.
• 7 = Debug (debug) - Information useful to developers for debugging the application.

Usage

Simply load the module and then call the appropriate message functions.

  var Logger  = require('g4-logger'),
      logger  = Logger({ level: 'debug' });
  
  logger.panic('Everyone panic!');
  logger.log('panic', 'Everyone panic!');
  // should output [panic] - Everyone panic!
  
  logger.crit('A critical error');
  logger.log('crit', 'A critical error.');
  // should output [crit] - A critical error.
   
  logger.error('My terrible error');
  // should output [error] - My terrible error
  
  logger.warn('Beware of codes!');
  // should output [warn] - Beware of codes!
  
  logger.notice('A fancy notice');
  logger.log('notice', 'A fancy notice');
  // should output [notice] - A fancy notice
  
  logger.info('My super message');
  // Should output [info] - My super message
  
  logger.debug('My cool debug message');
  // Should output [debug] - My cool debug message