An Example of Ruby API for Google Gloud DataStore.
$ sparrow plg install gcp-data-store-bookshelf
$ export GOOGLE_CLOUD_KEYFILE=/path/to/json/file
# list bookshelf entries:
$ sparrow plg run gcp-data-store-bookshelf --param project_id=$project_id
# add bookshelf entry:
$ sparrow plg run gcp-data-store-bookshelf \
--param project_id=$project_id --param action=add \
--param title="War and Peace" \
--param author="Лев Николаевич Толстой" \
--param desciption="School Reading"
Should be a Google project ID
Alexey Melezhik