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Transfer data from Google Cloud Datastore to Google Cloud Storage.

Project description

Transfers data from Google Cloud Datastore to Google Cloud Storage. Intended to be used from Google App Engine.

Usage

>>> import datastore_to_gcs
>>> from google.appengine.ext import ndb
>>>
>>> class Foo(datastore_to_gcs.BaseModel):
...     email = ndb.StringProperty()
...
>>> f = Foo(email='a@b.com')
>>> f.put()
Key('Foo', 1)
>>> datastore_to_gcs.update(Foo, 'bucket-name', 'foo.json')
>>> f2 = Foo(email='b@b.com')
>>> f2.put()
Key('Foo', 2)
>>> import datastore_to_gcs.cloud_storage as gcs
>>> gcs.download_object('bucket-name', 'foo.json')
[{u'last_modified': u'2017-06-19T18:02:01.332908', u'email': u'a@b.com', u'id': 1}]
>>> datastore_to_gcs.update(Foo, 'bucket-name', 'foo.json')
>>> gcs.download_object('bucket-name', 'foo.json')
[{u'last_modified': u'2017-06-19T18:02:01.332908', u'email': u'a@b.com', u'id': 1}, {u'last_modified': u'2017-06-19T18:03:09.342067', u'email': u'b@b.com', u'id': 2}]
>>>
>>>
>>> class Message(datastore_to_gcs.BaseModel):
...     text = ndb.StringProperty()
...
>>> m1 = Message(text='hello 1')
>>> m1.put()
Key('Message', 3)
>>> datastore_to_gcs.dump_log(Message, 'bucket-name', 'messages/')
'2017-06-19T18:05:07.json'
>>> m2 = Message(text='hello 2')
>>> m2.put()
Key('Message', 4)
>>> m3 = Message(text='hello 3')
>>> m3.put()
Key('Message', 5)
>>> datastore_to_gcs.dump_log(Message, 'bucket-name', 'messages/')
'2017-06-19T18:06:02.json'
>>> gcs.download_object('bucket-name', 'messages/2017-06-19T18:05:07.json')
[{u'text': u'hello 1', u'last_modified': u'2017-06-19T18:04:33.558426', u'id': 3}]
>>> gcs.download_object('bucket-name', 'messages/2017-06-19T18:06:02.json')
[{u'text': u'hello 2', u'last_modified': u'2017-06-19T18:05:35.084417', u'id': 4}, {u'text': u'hello 3', u'last_modified': u'2017-06-19T18:05:50.859952', u'id': 5}]

Contributing

Pull requests welcome! https://github.com/SocosLLC/datastore-to-gcs

About Socos

Socos LLC is the company behind Muse.

Muse brings your child’s everyday experiences to life and supports their development through research-based activities. Muse gives you insights into your child’s development and shows you what you can do each day to support their growth.

Project details


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