Using Metatron as a backend query engine API, to connect with a front-end API

[Mike]

Hey can anyone advise on using Metatron as a backend query engine? I want to make a visualization app with a frontend API that would send qery parameters to the backend API. It seems Metatron would be better than Druid because it has a data prep ETL buiolt-in, and supports filtering metric values, whereas Druid doesn't. Thanks!