Provide callbacks to be executed before and after the request dispatch.

Methods
A
B
C
N
Included Modules
Class Public methods
after(*args, &block)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/middleware/callbacks.rb, line 18
def self.after(*args, &block)
  set_callback(:call, :after, *args, &block)
end
before(*args, &block)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/middleware/callbacks.rb, line 14
def self.before(*args, &block)
  set_callback(:call, :before, *args, &block)
end
new(app, unused = nil)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/middleware/callbacks.rb, line 22
def initialize(app, unused = nil)
  ActiveSupport::Deprecation.warn "Passing a second argument to ActionDispatch::Callbacks.new is deprecated." unless unused.nil?
  @app = app
end
Instance Public methods
call(env)

Source: show | on GitHub 

# File actionpack/lib/action_dispatch/middleware/callbacks.rb, line 27
def call(env)
  run_callbacks :call do
    @app.call(env)
  end
end