Cloud Firestore (the next generation of Cloud Datastore) removes those limitations. https://cloud.google.com/firestore/docs/manage-data/transactions https://clo

Cloud Firestore (the next generation of Cloud Datastore) removes those limitations. https://cloud.google.com/firestore/docs/manage-data/transactions https://cloud.google.com/firestore/docs/manage-data/transact... It also supports the Cloud Datastore API. (I work on it!)