meep-log

logger for meepshop

Installation

$ npm install meep-log

Example

A Log’s stream is stdout, and its log level defaults is DEBUG.

Level & View mode Setting with shell environment variable

//Level
export LOG_LEVEL=INFO

//View Mode
export LOG_DEPLOY=PROD  //show JSON message 
export LOG_DEPLOY=DEV   //show a line message, this is default setting.

//Show Date
export LOG_SHOW_DATE=false //disable show date, default enable

Instead of DEBUG, let’s create a log with the info level:

var Log = require('log')
  , log = new Log('info');

log.debug('preparing email');
log.info('sending email');
log.error('failed to send email');

Instead of the log level constants, you can just supply a string:

var Log = require('log')
  , log = new Log('warning');

You can use %s to pass arguments (much like console.log()):

log.error('oh no, failed to send mail to %s.', user.email);

Show message with Javascript Object

var obj = {
              name: 'Tom',
              age: 18
          };
log.error('Hello,this is Object: %j', obj);   // use '%j'
log.error(JSON.stringify(obj)); // use JSON.stringify

Log Levels

Mirror that of syslog:

• 0 EMERGENCY system unusable
• 1 ALERT immediate action required
• 2 CRITICAL condition critical
• 3 ERROR condition error
• 4 WARNING condition warning
• 5 NOTICE condition normal, but significant
• 6 INFO a purely informational message
• 7 DEBUG debugging information

License

(The MIT License)

Copyright (c) 2009-2010 Yan Chen <[email protected]>

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.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.