CODEWITHSUNDEEP
ruby-on-railsrubyrubygemsruby-on-rails-5rails-engines
dariush
dariush

Reputation: 3341

rails dispatch event?

First off, I am totally new with gems and engines (eh. ruby); I am writing a handy engine which is going to filter requests based on the rules the user(developer) defines, currently my approach is the following:

class ApplicationController < ActionController::Base
  protect_from_forgery with: :exception

  before_action { Acu::Monitor.new request }
end

And it works like a charm, but I want the engine to be plug-n-play with minimum configuration by the user, is there anyway I can achive this?
Can I get anywhere between dispatch and controller, where I can validate the request? Is there something like pre-dispatch-event in rails?

I would really appreciate if anyone help me on this, I got tired of google this, kind of ran out of query to write! :D

update:

requests has to be processed, i.e the target controller/action need to be determined by rails then I am processing the request.

Upvotes: 0

Views: 656

Answers (1)

dariush
dariush

Reputation: 3341

I found the answer, it is the instrumentation that I was looking for

ActiveSupport::Notifications.subscribe "start_processing.action_controller" do |**args|
  # your own custom stuff
end

This way # your own custom stuff will start to fire before the before_action!

Upvotes: 1

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