It is possible to get today’s data with async but highly recommended to use a strategy of only using the async endpoint to backfill account data and things like conversion data.
Generally the complexity of calling async endpoint is more complex (polling for status, downloading a file, unzipping it, streaming in file data) and concurrent limit is relatively low, so doesn’t really make sense if you can accomplish the same thing with the standard style of endpoint. Also, for anything that involves refreshing data in user facing realtime (like on a UI) I would strongly recommend against building a dependency upon an async endpoint.
Thanks,
John