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Class: Rack::Runtime

Relationships & Source Files
Inherits: Object
Defined in: lib/rack/runtime.rb

Overview

Sets an “x-runtime” response header, indicating the response time of the request, in seconds

You can put it right before the application to see the processing time, or before all the other middlewares to include time for them, too.

Constant Summary

Class Method Summary

Instance Method Summary

Constructor Details

.new(app, name = nil) ⇒ Runtime

[ GitHub ] 

  


# File 'lib/rack/runtime.rb', line 16



def initialize(app, name = nil)
  @app = app
  @header_name = HEADER_NAME
  @header_name += "-#{name.to_s.downcase}" if name
end


  







Instance Method Details



  

    #call(env)  
  

  [ GitHub ]


  

  


# File 'lib/rack/runtime.rb', line 22



def call(env)
  start_time = Utils.clock_time
  _, headers, _ = response = @app.call(env)

  request_time = Utils.clock_time - start_time

  unless headers.key?(@header_name)
    headers[@header_name] = FORMAT_STRING % request_time
  end

  response
end