BunyanFormatter
You probably want:
documentation on using the Bunyan Logger
notes on writing plugins for the Bunyan logger
stories about a lumberjack.
Summary
This is a library component with a single external function:
Bunyan.Formatter.compile_format. If takes a format specification and
returns an anonymous function that will render a log message using that
specification.
This formatter is included by default if you include
Bunyan.Writer.Device in your application. It is also potentially
useful in other writer plugins, which is why it's in its own module.