January 2015
Intermediate to advanced
198 pages
4h 27m
English
Content preview from Python for Google App EngineBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Persisting data in Datastore
Even if users can log in and submit a note, our application isn't very useful until notes are stored somewhere. Google Cloud Datastore is the perfect place to store our notes. As part of App Engine's infrastructure, it takes care of data distribution and replication, so all we have to do is define store and retrieve our entities using the Python NDB (Next DB) Datastore API.
Note
There are currently two APIs available in the Python runtime to interact with Datastore: the DB Datastore API, also known as ext.db, and the NDB Datastore API. Even if both the APIs store exactly the same data in Datastore, in this book, we will only use NDB; it is more recent, provides more features, and its API is slightly more robust.
An entity ...
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