The Middlestack is a simple and convenient way to build and run of your own middleware stack for ruby

Add this line to your application's Gemfile:

gem 'middlestack'

And then execute:

$ bundle

Or install it yourself as:

$ gem install middlestack

It's pretty simple.

class TraceValue < Struct.new(:env, :value)
  def before
    env << ('->' + value)
  end

  def after
    env << ('<-' + value)
  end
end

class Executor
  include Middlestack::Helper

  middlewares do
    use TraceValue, 'A'
    use TraceValue, 'B'
    use TraceValue, 'C'
  end

  def execute
    run_middlewares([]){|env| env << 'run' }
  end
end

Executor.new.execute
# => ['->A', '->B', '->C', 'run', '<-C', '<-B', '<-A']

That's all. Have a nice code!

1. Fork it ( https://github.com/undr/middlestack/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request