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
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
      endInstance Public methods
delete(*args, &block)
📝 Source code
# File railties/lib/rails/configuration.rb, line 61
      def delete(*args, &block)
        @delete_operations << [__method__, args, block]
      endinsert_after(*args, &block)
📝 Source code
# File railties/lib/rails/configuration.rb, line 49
      def insert_after(*args, &block)
        @operations << [__method__, args, block]
      endinsert_before(*args, &block)
              Also aliased as: insert
            
          
          
          
          
            📝 Source code
# File railties/lib/rails/configuration.rb, line 43
      def insert_before(*args, &block)
        @operations << [__method__, args, block]
      endswap(*args, &block)
📝 Source code
# File railties/lib/rails/configuration.rb, line 53
      def swap(*args, &block)
        @operations << [__method__, args, block]
      endunshift(*args, &block)
📝 Source code
# File railties/lib/rails/configuration.rb, line 65
      def unshift(*args, &block)
        @operations << [__method__, args, block]
      enduse(*args, &block)
📝 Source code
# File railties/lib/rails/configuration.rb, line 57
      def use(*args, &block)
        @operations << [__method__, args, block]
      endInstance Protected methods
delete_operations()
📝 Source code
# File railties/lib/rails/configuration.rb, line 86
        def delete_operations
          @delete_operations
        endoperations()
📝 Source code
# File railties/lib/rails/configuration.rb, line 82
        def operations
          @operations
        end