get http://localhost:9100/api/versioned/v1/datasets//status
This endpoint describes whether the specified dataset is "streamable." This refers to whether the records in the dataset are up to date and ready for download. If the dataset is out of date, and thus not streamable, then you should refresh before streaming.
On success, returns a subset of the dataset object containing the datasetName, relativeDatasetId, and the Boolean isStreamable.