How to retrieve all the slot values collected at the end of a particular use case before firing an action

How to retrieve all the slot values collected at the end of a particular use case before firing an action … In google dialogue flow each response in a particular context will have all the data collected so far. So that at the end of the data collection we can trigger some action from the application itself by reading the values in the response. I am trying to migrate our chat bot which is developed in google dialogue flow to rasa. we do not want to invoke actions triggered from rasa , instead we want to trigger from our application as there are some other validations We have to apply on the data