anylogger-loglevel

anylogger-loglevel _^1.0.0

Anylogger adapter for loglevel

^_.

What is this?

This is an anylogger adapter for loglevel.

This package is meant for application projects that are using libraries using anylogger. By including this adapter in your project, all libraries using anylogger will automatically start to use loglevel as their logging framework.

Download

• anylogger-loglevel.js (fully commented source ~1kB)
• anylogger-loglevel.min.js (minified 472 bytes, gzipped ~272 bytes)

CDN

index.html

<script src="https://unpkg.com/anylogger@1.0.3/anylogger.min.js"></script>
<script src="https://unpkg.com/loglevel@1.6.8/dist/loglevel.min.js"></script>
<script src="https://unpkg.com/anylogger-loglevel@1.0.0/anylogger-loglevel.min.js"></script>
<script>(function(){ // IIFE
  var log = anylogger('index.html')
  log.info('Logging is simple!')
  // to see logging, enable it by typing this in the console:
  // localStorage.setItem('loglevel:index.html', 'DEBUG')
  // then refresh the page
})()</script> 

When used in the browser with global names (like when used from CDN as in the example above), loglevel publishes itself to window.log, not window.loglevel as one might expect.

Install

Install this adapter, as well as both anylogger and loglevel:

npm install --save anylogger-loglevel anylogger loglevel

Include in your application project

This package is meant for application projects. If you are writing a library to be NPM installed into some other project, most likely you should not include any adapter, but instead just use anylogger directly.

The anylogger-loglevel adapter will modify the anylogger factory in such a way that the loggers it creates will be logging to loglevel.

When using loglevel, all logging except for warnings and errors is supressed by default. As such, you should make sure to set the log level to INFO or DEBUG as usual before expecting to see any output.

To activate the adapter, include it in your application entry point.

Require

main.js

require('anylogger-loglevel')

Import

main.js

import 'anylogger-loglevel'

Logging in the application project

In your application module code, only use anylogger to stay framework independent:

my-module.js

import anylogger from 'anylogger'
const log = anylogger('my-module')
log('Logging is simple!')

This is helpful if you ever decide to factor out the application module into a separate library.

log configuration in the application project

Because anylogger is simply using loglevel below the surface, you can use all the normal configuration mechanisms available for loglevel.

If you need to control log settings programmatically, just import loglevel and use it directly:

main.js

// ...
import loglevel from 'loglevel'
loglevel.getLogger('my-module').setLevel(loglevel.levels.INFO)
// ...

Issues

Add an issue in this project's issue tracker to let me know of any problems you find, or questions you may have.

Copyright

© 2020 by Stijn de Witt. Some rights reserved.

License

Licensed under the MIT Open Source license.

gzip-size

The GZIP algorithm is available in different flavours and with different possible compression settings. The sizes quoted in this README have been measured using gzip-size by Sindre Sorhus, your mileage may vary.