Add StripeEvent.listening?

[vandrijevik]

Often, I find it helpful in my retrievers to know whether StripeEvent has any registered listeners for a particular event type. This allows me to avoid a Stripe::Event.retrieve API call to Stripe if I am not even interested in processing the event. Currently, I do this in my retrievers:

class StripeEventRetriever
  def call(params)
    return nil unless processing_events_of_type?(params[:type])
    # <snip>
  end

private
  def processing_events_of_type?(event_type)
    namespaced_type = StripeEvent.namespace.call(event_type)
    StripeEvent.backend.notifier.listening?(namespaced_type)
  end
end

Since StripeEvent.namespace and StripeEvent.backend are internal implementation details, I think it would be nice to provide a StripeEvent.listening? API which provides this functionality without exposing users of the gem to notification internals.

[invisiblefunnel]

Thanks @vandrijevik. This looks great.

@peterkeen @rmm5t any thoughts?

[peterkeen]

I like it. 👍

[invisiblefunnel]

Released 1.4.0. Thanks @vandrijevik @peterkeen.

[vandrijevik]

Great, thank you!