My middleware class “ResponseTimer” doesn’t intercept a request. I don’t
know why (the example is from here
#151 Rack Middleware - RailsCasts; I
changed my one a little for Rails 3.2.13 version, the original is for
Rails
2.x).
So I did as follows:
in \lib\response_timer.rb
this is the class of my custom middleware:
class ResponseTimer
def initialize(app)
@app = app
end
def call(env)
[200, {“Content-Type” => “text/html”}, “Hello, World!”]
end
end
in \config\initializers\custom_middleware.rb
this is an initializer file that I created. It’s goal is to add my
middleware “ResponseTimer” to the middleware stack:
module Demo
class Application < Rails::Application
config.after_initialize do
Rails.application.config.middleware.insert_after(ActionDispatch::Callbacks,
“ResponseTimer”)
end
end
end
Now I check whether “ResponseTimer” is in the middleware stack, and it
is:
C:\myapp>rake middleware
…
use ActionDispatch::Callbacks
use ResponseTimer ## ok, it is in the middleware stack
use ActiveRecord::ConnectionAdapters::ConnectionManagement
…
But when I make a request my “ResponseTimer” doesn’t intercept it. The
request successfully passes by to the application. Instead of
ResponseTimer’s “Hello World!” response I get standard response:
Hello#index
Find me in app/views/hello/index.html.erb
What do I do wrong? What did I forget to set or enable?