Bunyan -- a JSON Logger for node.js servers.

Server logs should be structured. JSON's a good format. Let's do that: a log record is one line of JSON.stringify'd output. Let's also specify some common names for the requisite and common fields for a log record (see below).

Also: log4j is way more than you need.

Usage

// hi.js
var Logger = require('bunyan');
var log = new Logger({facility: "myapp", level: "info"});
log.info("hi");

$ node hi.js
{"time":"2012-01-30T00:56:25.842Z","facility":"myapp","level":2,"message":"hi"}

$ node hi.js | bunyan  # CLI tool to filter/pretty-print JSON logs.
{
  "time": "2012-01-30T00:56:25.842Z",
  "facility": "myapp",
  "level": 2,
  "message": "hi"
}

Levels

fatal
error
warn
info
debug

TODO

Log Record Fields

TODO

License

MIT.