Log request details at Rack level

application.rb

config.middleware.use "Loggo"

loggo.rb

require 'pp'

class Loggo
  def initialize(app)
    @app = app
    # @log = File.open(Rails.root.join("log/loggo.log"), "a+")
    @log = STDERR
  end

  def call(env)
    headers = env.reject do |k,v|
      k=~ /(rack|warden|action|honeybadger)/
    end

    @log.write ">"*50 + "\n"
    PP.pp(headers, @log)
    @log.write "-"*50 + "\n"
    response = @app.call(env)
    @log.write response[0]
    @log.write "\n"
    @log.write response[1]
    @log.write "\n"
    @log.write response[2].try(:body)
    @log.write "<"*50 + "\n"
    @log.flush
    response
  end
end