I am trying to connect to my Google Datastore instance but I can't find any sample code for how to initialize a connection!
Gcloud's main documentation immediately starts with how to assign an Entity or a Query but skips the crucial connection bit. The demo section seems specific to the demo in that it uses test environment variables which is quite confusing.
Most importantly, I am interested in what environment variables I need to define and if it is possible to define the service email and path to key from within the python program.
Highly appreciate it if anyone can provide a sample code of how to commit something to a datastore instance.
Thanks!
After looking around, I finally found the environment variables I need define.
To connect to your google datastore from within Python:
import os
os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = <path to private key>
os.environ['GCLOUD_DATASET_ID'] = <dataset_id, also known as project id>
# Fetching queries should work now
query = datastore.Query(kind=<kind>, namespace=<namespace>)
for result in query.fetch():
print result
Google assumes you are using App Engine with Datastore that is why it is trickier to find these variables if you first introduction to Google Cloud is its Datastore service.