fastlog

stupid simple logging for Node.js. Prints messages to stdout.

Create a logger:

var logger = require('fastlog')(category, level);

logger then has a functions named after each of the available log levels. Levels are (in order of severity) debug, info, warn, error and fatal.

Both arguments are optional. category defaults to to "default" and level defaults to "info". Anything less severe than the given level will not be logged.

The logger functions take a string (interpolation optional):

var logger = require('fastlog')('security', 'debug');
logger.debug('there is a %s in my %s!', 'snake', 'boot');
>> 6 Jun 22:52:10 - [debug] [security] there is a snake in my boot!

Or an Error object. Any string property that's tacked onto the object will be logged as well:

var err = new Error('someone poisened the water hole!');
err.culprit = 'sid';
logger.error(err);
>> 6 Jun 22:53:38 - [error] [security] Error: someone poisened the water hole!
>>     at Module.runMain (module.js:492:10)
>>     at process.startup.processNextTick.process._tickCallback (node.js:244:9)
>>     culprit: sid

ianshward/fastlog

fastlog