caterpillar-filter

Filter out undesired log levels from your [Caterpillar](https://github.com/bevry/caterpillar) logger stream

npm install caterpillar-filter
111 downloads in the last day
732 downloads in the last week
3 696 downloads in the last month

Filter Transform for Caterpillar

Build Status NPM version Gittip donate button Flattr donate button PayPayl donate button

Filter out undesired log levels from your Caterpillar logger stream

Install

Node, Browserify

  • Use: require('caterpillar-filter')
  • Install: npm install --save caterpillar-filter

Ender

  • Use: require('caterpillar-filter')
  • Install: ender add caterpillar-filter

Usage

Example

// Import
var logger = require('caterpillar').createLogger();
var filter = require('caterpillar-filter').createFilter({level:6});  // omit log level entries above 6

// Pipe logger output to filter, then filter output to stdout
logger.pipe(filter).pipe(process.stdout);

// Log
logger.log('info',  'this is the first log entry');   // info is level 6
logger.log('debug', 'this is the second log entry');  // debug is level 7, this will be omitted by our filter
logger.log('info',  'this is the third log entry');   // info is level 6

// Outputs
// {"args":["this is the first log entry"],"date":"2013-04-25T08:48:38.941Z","levelCode":6,"levelName":"info","line":"9","method":"Object.<anonymous>","file":"/Users/balupton/Projects/caterpillar-filter/example.js"}
// {"args":["this is the third log entry"],"date":"2013-04-25T08:48:38.948Z","levelCode":6,"levelName":"info","line":"11","method":"Object.<anonymous>","file":"/Users/balupton/Projects/caterpillar-filter/example.js"}

Filter API, extends caterpillar.Transform, which extends stream.Transform

new (require('caterpillar-filter').Filter)(config)
  • Methods
    • constructor(config?) create our new filter instance with the config, config is optional
    • pipe(child) pipe our stream to the child, also sync our config to it
    • setConfig(config) set the configuration and emit the config event
    • getConfig() get the configuration
    • format(entry) format the caterpillar logger entry
  • Configuration
    • level number, defaults to 6, anything higher will be omitted
  • Events
    • config(config) emitted once our configuration has updated

History

Discover the change history by heading on over to the History.md file.

Backers

Maintainers

These amazing people are maintaining this project:

Sponsors

No sponsors yet! Will you be the first?

Gittip donate button Flattr donate button PayPayl donate button

Contributors

These amazing people have contributed code to this project:

Become a contributor!

License

Licensed under the incredibly permissive MIT license

Copyright © 2012+ Bevry Pty Ltd us@bevry.me (http://bevry.me)
Copyright © 2011 Benjamin Lupton b@lupton.cc (http://balupton.com)

npm loves you