class ActionDispatch::Callbacks

Provides callbacks to be executed before and after dispatching the request.

def after(*args, &block) 

def after(*args, &block)
  set_callback(:call, :after, *args, &block)
end

def before(*args, &block) 

def before(*args, &block)
  set_callback(:call, :before, *args, &block)
end

def call(env) 

def call(env)
  error = nil
  result = run_callbacks :call do
    @app.call(env)
  rescue => error
  end
  raise error if error
  result
end

def initialize(app) 

def initialize(app)
  @app = app
end