MiddlewareStackProxy is a proxy for the Rails middleware stack that allows you to configure middlewares in your application. It works basically as a command recorder, saving each command to be applied after initialization over the default middleware stack, so you can add, swap, or remove any middleware in Rails.

You can add your own middlewares by using the config.middleware.use method:

config.middleware.use Magical::Unicorns

This will put the Magical::Unicorns middleware on the end of the stack. You can use insert_before if you wish to add a middleware before another:

config.middleware.insert_before Rack::Head, Magical::Unicorns

There's also insert_after which will insert a middleware after another:

config.middleware.insert_after Rack::Head, Magical::Unicorns

Middlewares can also be completely swapped out and replaced with others:

config.middleware.swap ActionDispatch::Flash, Magical::Unicorns

And finally they can also be removed from the stack completely:

config.middleware.delete ActionDispatch::Flash

Methods

Attributes

[R] delete_operations
[R] operations

Class Public methods

new(operations = [], delete_operations = [])

📝 Source code 
# File railties/lib/rails/configuration.rb, line 38
      def initialize(operations = [], delete_operations = [])
        @operations = operations
        @delete_operations = delete_operations
      end
🔎 See on GitHub

Instance Public methods

delete(*args, &block)

📝 Source code 
# File railties/lib/rails/configuration.rb, line 65
      def delete(*args, &block)
        @delete_operations << -> middleware { middleware.send(__method__, *args, &block) }
      end
🔎 See on GitHub

insert(*args, &block)

Alias for: insert_before

insert_after(*args, &block)

📝 Source code 
# File railties/lib/rails/configuration.rb, line 50
      def insert_after(*args, &block)
        @operations << -> middleware { middleware.send(__method__, *args, &block) }
      end
🔎 See on GitHub

insert_before(*args, &block)

Also aliased as: insert
📝 Source code 
# File railties/lib/rails/configuration.rb, line 43
      def insert_before(*args, &block)
        @operations << -> middleware { middleware.send(__method__, *args, &block) }
      end
🔎 See on GitHub

swap(*args, &block)

📝 Source code 
# File railties/lib/rails/configuration.rb, line 55
      def swap(*args, &block)
        @operations << -> middleware { middleware.send(__method__, *args, &block) }
      end
🔎 See on GitHub

unshift(*args, &block)

📝 Source code 
# File railties/lib/rails/configuration.rb, line 69
      def unshift(*args, &block)
        @operations << -> middleware { middleware.send(__method__, *args, &block) }
      end
🔎 See on GitHub

use(*args, &block)

📝 Source code 
# File railties/lib/rails/configuration.rb, line 60
      def use(*args, &block)
        @operations << -> middleware { middleware.send(__method__, *args, &block) }
      end
🔎 See on GitHub