syslog-logger

A node.js module for logging messages to the syslog on Unix-based systems.

It relies node-posix to make the system call.

General usage

• Installation: npm install syslog-logger
• In your code: var logger = require('syslog-logger');
• Logging: logger.logInfo('Format %s are expected: %d', 'strings', 1000 );
  • logEmergency, logAlert, logCritical, logError, logWarning, logNotice and logDebug are also available

Initialization options

• Example: var logger = require('syslog-logger').init( { appName: 'name of app', showPID: true });

• Calling init is not necessary, provides the following defaults:

  • appName: the second argument to the current process usually a .js file name, falls back to to process.title
  • showPID: false
  • nDelay: true
  • facility: 'local0'
  • maxSyslogLevel: 'notice'

• All the options explained:

  • appName: app-name in the syslog
  • showPID: whether to show process PID (shows up in the same field as app-name)
  • nDelay: Open the connection immediately (normally, the connection is opened when the first message is logged).
  • facility: Surprisingly enough, this makes to the facility argument to syslog
  • maxSyslogLevel: the maximum level (emerg=0 to debug=7) that will be logged to syslog. Messages below this level will be written to the console, but not to syslog.