Class: RightSupport::Rack::CustomLogger

Inherits:
Object
  • Object
show all
Defined in:
lib/right_support/rack/custom_logger.rb

Overview

A Rack middleware that allows an arbitrary object to be used as the Rack logger. This is more flexible than Rack’s built-in Logger middleware, which always logs to a file-based Logger and doesn’t allow you to control anything other than the filename.

Instance Method Summary collapse

Constructor Details

#initialize(app, level = ::Logger::INFO, logger = nil) ⇒ CustomLogger

Initialize an instance of the middleware.

Parameters

app(Object)

the inner application or middleware layer; must respond to #call

level(Integer)

one of the Logger constants: DEBUG, INFO, WARN, ERROR, FATAL

logger(Logger)

(optional) the Logger object to use, if other than default



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# File 'lib/right_support/rack/custom_logger.rb', line 38

def initialize(app, level = ::Logger::INFO, logger = nil)
  @app, @level = app, level

  logger ||= ::Logger.new(env['rack.errors'])
  logger.level = @level
  @logger = logger
end

Instance Method Details

#call(env) ⇒ Object

Add a logger to the Rack environment and call the next middleware.

Parameters

env(Hash)

the Rack environment

Return

always returns whatever value is returned by the next layer of middleware



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# File 'lib/right_support/rack/custom_logger.rb', line 53

def call(env)
  env['rack.logger'] = @logger
  return @app.call(env)
end