I have a question or suggestion:
For get sprint REST API: Data Center: return activatedDate
but Cloud return createdDate
I think the activated date or actual sprint start date is more valuable than create date. May I know if you have any plan to add activated date and activated person in the Cloud REST API of getting sprint info?
Upon checking the JSWCLOUD project in jira.atlassian.com (JAC), I found out that this feature suggestion has been raised before and is quite similar, if not the same, as to what you are requesting.
Since the feature suggestion I linked is already closed and has not been implemented, if this functionality is vital to you, I recommend that you raise a new ticket on JAC to highlight the need for such functionality.