spas/lib/logging.js

spas is a pragmatic tool for bundling multiple API requests into a single request/response for the end user. spas throttles, caches, parses, filters, concatenates and minifies API responses. It serves them all up in one tidy little package resulting in fe

/*
## Logging
	----------------------------------------------------------------------
	To set logging level use command line argument "--log loglevel"
	
	The valid values for loglevel are:
	
		error - Logs SPAS errors only
		warn - Adds communication issues with 3rd party API's
		data - [default] Adds all billable transaction events (request to API's & request for bundles)
		info - Adds program flow (function calls, enqueued jobs, etc)
		debug - Adds all datapoints other than API responses and bundles
		verbose - Adds everything (API Responses, conmpleted bundles, etc).
		input - Adds all requests and parameters
*/

var 
	  winston = require('winston')
;


// The default logging levels seem to be changing a lot so let's just set our own
var loggingLevels = {
	levels: { input: 0, verbose: 1, debug: 2, info: 3, event: 4, warn: 5, error: 6 },
	colors: { input: 'cyan', verbose: 'blue', debug: 'grey', info: 'green', event: 'white', warn: 'yellow', error: 'red' }
};
  
/*
	Configure Winston logging
*/
var logger = new (winston.Logger)({
  levels: loggingLevels.levels,
  colors: loggingLevels.colors,
  transports: []
});

// If we are running as a service then output to DailyRotateFile
if (GLOBAL.config.args.spawned) {
	logger.add(winston.transports.DailyRotateFile, {
      timestamp: true,
      filename: process.cwd() + '/logs/spasout.log',
	  datePattern: '.yyyy-MM-dd',
      level: GLOBAL.config.args.log,
      handleExceptions: true,
      exitOnError: false 
    });
// otherwise output straight to the console
} else {
	logger.add(winston.transports.Console, {
      timestamp: false,
      colorize: true,
      level: GLOBAL.config.args.log,
      handleExceptions: true,
      exitOnError: false,
      json: false
    });
}

exports.winston = logger;