Hello,
Please, excuse us for this delay. It seems that we currently do not have an API call to support this use case.
We suggest that you create an Idea on our own Lithosphere Idea Exchange (http://lithosphere.lithium.com/t5/Suggest-Your-Ideas/idb-p/Lithium_Ideas). Our Product Management team actively reviews these Ideas and engages with our customers for their feedback. Additionally, you can discuss other ideas, find workarounds and see what Ideas our other customers have here.
Please let us know if you have any further questions or concerns.
Kind regards,
Damian
For reference, here's how to get all reviews for a product, including sort options: http://lithosphere.lithium.com/t5/rest-api/bd-p/developers-rest-api?leaf-id=Product.reviews#Product.reviews.messages ?
-- Jeff
