Show device address permission request card

From within the intent handler, return the special permission consent response instead of the usual response object

module Alexa
  module IntentHandlers
    class MyIntent < Alexa::IntentHandlers::Base
      def handle
        return Alexa::Responses::PermissionConsents::DeviceAddress.new(intent: self)
      end
    end
  end
end

This automatically returns the card for permissions' consent in your response but not the speech. Add speech to the response by adding the speech file (permission_consents/device_address.ssml.erb) under the intent handler's views directory for the intent from which the response is returned.

# app/views/alexa/de_de/intent_handlers/my_intent/permission_consents/device_address.ssml.erb
<speak>
  Please give permissions to get your device address.
</speak>