rails-middleware_timer

MiddlewareTimer :clock1:

A Rack middleware timer for Rails 4 and 5. Outputs results in miliseconds like so:

Started GET "/health" for 127.0.0.1 at 2016-12-15 23:39:19 +0000
  ActiveRecord::SchemaMigration Load (0.4ms)  SELECT "schema_migrations".* FROM "schema_migrations"
Processing by HealthController#show as HTML
Completed 200 OK in 0ms (ActiveRecord: 0.0ms)

Sample message for Rack::Runtime ==> 22 ms
Sample message for ActionDispatch::Executor ==> 21 ms
Sample message for ActionDispatch::Static ==> 70 ms
Sample message for Rack::Sendfile ==> 70 ms

Installation

Put the following in your Gemfile:

gem 'rails-middleware_timer',
    git: 'git://github.com/humzashah/rails-middleware_timer.git'

and bundle install.

Then add the following to your environment.rb file:

# config/environment.rb

# after: Rails.application.initialize!
Rails::MiddlewareTimer.time!

You can use a custom message format / method like so:

# config/initializers/rails-middleware_timer.rb

require 'rails/middleware_timer'

module Rails
  module MiddlewareTimer
    module Timer
      module_function

      def custom_output(class_name, time_taken)
        puts "Sample message for #{class_name} ==> #{time_taken}"
      end
    end
  end
end