Google Datastore
Google Datastore. Accesses the schemaless NoSQL database to provide fully managed, robust, scalable storage for your application.

Overview
Datastore is a highly scalable NoSQL database for your applications. Datastore automatically handles sharding and replication, providing you with a highly available and durable database that scales automatically to handle your applications' load. Datastore provides a myriad of capabilities such as ACID transactions, SQL-like queries, indexes, and much more.
Content
Insert an Entity
Insert an object into the database at a given key.
Upsert an Entity
Upsert an object into the database at a given key.
Update an Entity
Update an object in the database at a given key.
Delete an Entity
Delete an entity by key.
Lookup an Entity
Lookup an entity by key.