Module: Lotus::Action::Rack::ClassMethods

Defined in:

lib/lotus/action/rack.rb

Overview

Since:

• 0.1.0

Instance Method Summary

• #use(middleware) ⇒ Object

  Use a Rack middleware as a before callback.

Instance Method Details

#use(middleware) ⇒ Object

Use a Rack middleware as a before callback.

The middleware will be used as it is, no matter if it’s a class or an instance. If it needs to be initialized, please do it before to pass it as the argument of this method.

At the runtime, the middleware be invoked with the raw Rack env.

Multiple middlewares can be employed, just by using multiple times this method.

Examples:

Class Middleware

require 'lotus/controller'

class SessionsController
  include Lotus::Controller

  action 'Create' do
    use OmniAuth

    def call(params)
      # ...
    end
  end
end

Instance Middleware

require 'lotus/controller'

class SessionsController
  include Lotus::Controller

  action 'Create' do
    use XMiddleware.new('x', 123)

    def call(params)
      # ...
    end
  end
end

Parameters:

• middleware (#call) —

  A Rack middleware

See Also:

• Callbacks::ClassMethods#before

Since:

• 0.2.0

# File 'lib/lotus/action/rack.rb', line 85

def use(middleware)
  before do |params|
    middleware.call(params.env)
  end
end