Isomorphic Bunyan Stream

Just what it says on the label: a simple, isomorphic Bunyan stream for use in Node and the browser. It's intended to be used only for development, so all context gets stripped out: only the message, level, logger name, and a simple timestamp are displayed.

Why is this useful?

Isomorphic applications, as much or moreso than client-only, single-page web applications, are a distributed computing problem. Good logs provide a simple, sane way to reason about the flow of information through such a distributed system, but we need a way to reason about all actors involved, including the browser. As such, we're well-served by a consistent stream shared between both types of actor: the client (browsers) and the server (Node).

Installation

As always, it's just an NPM module:

npm install --save iso-bunyan-stream

Usage

The stream requires being added in raw mode:

var bunyan = require('bunyan');
var logger = bunyan.createLogger({
  name: 'SomeApp',
  streams: [{
    level: 'info',
    type: 'raw',
    stream: {
      write: function (record) {
        console.log('%s %s| %s: %s', colors.grey(record.name), colors.grey(record.time.toLocaleTimeString()), colors[LEVEL_COLORS[record.level]](LEVEL_NAMES[record.level]), record.msg);
      }
    }
  }]
});