How to link Noticed deliveries to PostHog

[penguoir]

Here's how to create an event on PostHog when a notification is sent.

I use this to:

• track conversion rates of emails (notification send -> page click funnel)
• ensure deliveries are working properly (alert if less than X notifications)
• see if anyone is getting too many notifications (alert if user has more than X notifications)

# config/initializers/noticed_posthog.rb
# Make delivery methods send a PostHog event after delivery
module CapturePosthogEvent
  extend ActiveSupport::Concern

  included do
    after_deliver :capture_posthog_event
  end

  private

  def capture_posthog_event
    Rails.error.handle do
      $posthog.capture({
        event: "notification_send",
        distinct_id: recipient.prefix_id,
        properties: {
          notification_id: notification.id,
          record_id: record.prefix_id,
          notification_type: notification.type,
          delivery_method: self.class.name,
    
          # ... anything else you want ...
        }
      })
    end
  end
end

Rails.configuration.to_prepare do
  Noticed::DeliveryMethod.include CapturePosthogEvent
end

This will create events like this:

property	example value
delivery_method	Noticed::DeliveryMethods::ActionCable
notification_id	15078
notification_type	Account::AcceptedInviteNotifier::Notification
record_id	user_K7Wk2rYAeXZeomKEQzqga56d