eel-stream - EventEmitter logging -> writeable streams

An incredibly simple module, just 6 lines:

module.exports = function (formatter, stream) {
    return function (entry) {
        var output = formatter(entry)
        if (!output) return
        stream.write(output + '\n')
    }
}

Usage

Install it like this:

npm install eel-stream

Use it like this:

fs  = require('fs')
log = require('eel')

log.on('entry', require('eel-stream')(JSON.stringify, fs.createWriteStream(__dirname+'/myapp.log')))

log('test1', {ok: true})
log('test2', {ok: false})

And get log entries like this:

{"type":"test1","level":"info","timestamp":"2012-06-28T18:48:01.249Z","ok":true}
{"type":"test2","level":"info","timestamp":"2012-06-28T18:48:01.250Z","ok":false}

Parameters

• formatter: A callback with the signature (entry) -> String|Buffer
• stream: A writable stream

License

BSD