su-logger adds a few event listeners to a node process — which is an EventEmitter — allowing you emit logging events; as well as supplying a callback function for custom processing of events broadcasted.
only one event listener is added per process, which means you can write individual modules which require('su-logger') and emit logging events without having to worry about multiple event listeners being added and callbacks firing more than once.
allowing you to supply a custom callback means, you can then apply whatever logging code you want to at the top level of your application.
// use generic `console.log`;
require('su-logger')();
// use custom logging callback;
require('su-logger')(function() {
// ... do stuff with `arguments`
});
// in your code
process.emit('app:log', module, arg_1, ..., arg_N);
process.emit('app:debug', module, arg_1, ..., arg_N);
process.emit('app:error', module, arg_1, ..., arg_N);
process.emit('app:info', module, arg_1, ..., arg_N);
process.emit('app:warn', module, arg_1, ..., arg_N);
process.emit('app:time', module);
// do something asynchronous
process.emit('app:timeend', module);