log3

Easy logging for node.js, with automatic file/line output.

This module was inspired by log2 by Andrew Chilton.

Installation:

npm install --save log3

Usage example:

 
const log = require('log3')({ out: 'server.log' });
 
log.debug('A log used for debugging');
// 2016-06-28T03:14:20.000Z | DEBUG | testDebug (/test.js:1:1) | A log used for debugging
 
log.info('This is just a nice-to-know');
// 2016-06-28T03:14:20.000Z | DEBUG | testDebug (/test.js:2:1) | This is just a nice-to-know
 
log.warn('Something went wrong, but we can keep on going.');
// 2016-06-28T03:14:20.000Z | DEBUG | testDebug (/test.js:3:1) | Something went wrong, but we can keep on going.
 
log.error('An error occured... Some explanation here');
// 2016-06-28T03:14:20.000Z | DEBUG | testDebug (/test.js:4:1) | An error occured... Some explanation here
 
log.fatal('A fatal error occurred, cannot proceed.');
// 2016-06-28T03:14:20.000Z | DEBUG | testDebug (/test.js:5:1) | A fatal error occurred, cannot proceed.
 
log.debug('A log used for debugging, specifying a custom origin', 'server.js, start()');
// 2016-06-28T03:14:20.000Z | DEBUG | server.js, start() | A log used for debugging, specifying a custom origin
 
log('A log with a custom level', 'hey', 'server.js, test()');
// 2016-06-28T03:14:20.000Z | HEY   | server.js, test() | A log with a custom level
 
log.end(); // Closes the writable stream (To file etc.)
 

The options you can pass are:

Name	Type	Default	Explanation
timestamp	boolean	true	Log the timestamp
out	Stream|String|?	process.stdout	A stream or a filename to output to
title	boolean	false	Log current process title
pid	boolean	false	Log current process id
hostname	boolean	false	Log current machine name
console	Array.<String>	['fatal']	Array of levels that are outputted to console too
autoorigin	boolean	true	Will try to autodetect origin of log call
origin	String	null	Predefined origin to log, when autoorigin is disabled

Contributing

If you have anything to contribute, or functionality that you lack - you are more than welcome to participate in this! If anyone wishes to contribute unit tests - that also would be great :-)

Me

• Hi! I am Daniel Cohen Gindi. Or in short- Daniel.
• [e-mail] is my email address.
• That's all you need to know.

Help

If you want to buy me a beer, you are very welcome to Thanks :-)

License

All the code here is under MIT license. Which means you could do virtually anything with the code. I will appreciate it very much if you keep an attribution where appropriate.

The MIT License (MIT)

Copyright (c) 2013 Daniel Cohen Gindi ([e-mail])

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.