Name: acho
Owner: Wire Swiss GmbH
Description: An extremely simple (but powerful) logging system for NodeJS & Browser.
Forked from: achojs/acho
Created: 2016-09-30 10:35:41.0
Updated: 2017-10-07 16:32:19.0
Pushed: 2016-09-30 12:50:26.0
Size: 395
Language: CoffeeScript
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An extremely simple (but powerful) logging system for NodeJS and browser.
install acho
If you want to use it in the browser (powered by Browserify):
r install acho --save
and later add it to your HTML:
ipt src="bower_components/acho/dist/acho.js"></script>
Acho exports itself according to UMD best practices, which means that no matter where you are using the library, you get a version tailored for your environment.
If you're using a module loader (or Node), simple require the library as you would any other module.
If you're using a browser, the library falls back to attaching itself to window as the global Acho.
Acho = require('acho');
acho = Acho();
acho = Acho();
I don't use personally use AMD, so I can't conjure an example, but it should work fine as well.
It's time to use it!
.info('hello world');
All public methods are chainable:
o('hello world')
or('something bad happens');
Maybe you don't want to output the message, but store it for later use:
.push('success', 'good job', 'well done', 'great!');
ole.log(acho.messages.success);
If you want to print previously stored messages, just call the method print:
.print()
You might be thinking: Can I combine both, to store and both print a message? Absolutely!
.add('info', 'this message is printed and stored');
ole.log(acho.messages.info)
Establishing the loglevel is a good way to filter out undesired information from output. The available levels by default are:
fatal : Display calls to .fatal() messages.error : Display calls to .fatal(), .error() messages.warn : Display calls from .fatal(), .error(), .warn() messages.info : Display calls from .fatal(), .error(), .warn(), info() messages.debug : Display calls from .fatal(), .error(), .warn(), info(), debug() messages.Additionally exists two special levels:
muted : Avoid all output.all : Allow print all message types.The default log level is all. You can define it in the constructor:
acho = Acho({level: 'debug'})
or at runtime:
.level = 'debug';
You can completely customize the library to your requirements: changes colors, add more types, sort the priorities… the internal structure of the object is public and you can edit it dynamically. You have the power.
By default the messages structure is brief: Just the message type followed by the message itself.
But you can easily modify the output. For example, let's add a timestamp to each message:
acho = Acho({
lor: true,
vel: 'debug',
Customize how to print the 'type' of each message
tputType: function(type) {
return '[' + type + '] » ';
Customize how to print the message.
Add things before and/or after.
tputMessage: function(message) {
return Date() + ' :: ' + message;
.info('I am hungry');
If you need customize more the output you can setup .print .generateMessage (see below) that are a more low level methods for generate and print the output message.
Create a logger. Available options:
Default: loglevel
Instead of print the type log level, print the keyword. By default this behavior is not activated.
You can pass the special keyword symbol to show an unicode icon. This is special behavior for CLI programs.
Default:
It adds an alignment separator between the type of the message and the message.
You can provide your own separator or disable it providing a false.
Default: false
Prints timestamp between log from the same level. Specially useful to debug timmings.
Default: false.
Enable or disable colorized output.
Default: false.
Enable or disable print log level in upper case.
Default: 0.
Prints a counter timestamp associated with each log line. Useful for debug log traces.
Default: all
Provides the logging level. This sets from what level print logs using tranport.
Additionally you can provide muted to express don't print logs.
Default: console.log
Defines where write the log message.
You can provide the types and priorities.
It provides a initial internal store state per each log level. This option is useful when you want to integrate the logger with the ouptut of a delayed function.
Provides a function that determines how to print the messages. By default uses .generateMessage for generate the mesage that will be outputted.
Provides a function to customize the type in the output.
Provides a function to customize the message in the output.
Provides a function that generate the message to be outputted. It combines other internal methods for generate the output (as .isPrintable or .colorize) and normally you are not interested in the definition of it, but you can provide it as option as well.
Provides a function used to generate the type message.
Store a message of given type internally.
Store a message of given type internally and also output it.
For each level you have a function following the pattern:
Prints all messages internally stored.
For each log level that you declared in the constructor (or the default log levels provides by the library if you don't declare nothing) will be created a function with the same name to output a message with these log level.
MIT © Kiko Beats