docs-archive/apache-airflow-providers-google/1.0.0/_sources/operators/cloud/datastore.rst.txt

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Google Cloud Datastore Operators
================================

Firestore in Datastore mode is a NoSQL document database built for automatic scaling,
high performance, and ease of application development.

For more information about the service visit
`Datastore product documentation <https://cloud.google.com/datastore/docs>`__

.. contents::
  :depth: 1
  :local:

Prerequisite Tasks
------------------

.. include::/operators/_partials/prerequisite_tasks.rst


.. _howto/operator:CloudDatastoreExportEntitiesOperator:

Export Entities
---------------

To export entities from Google Cloud Datastore to Cloud Storage use
:class:`~airflow.providers.google.cloud.operators.datastore.CloudDatastoreExportEntitiesOperator`

.. exampleinclude:: /../../airflow/providers/google/cloud/example_dags/example_datastore.py
    :language: python
    :dedent: 4
    :start-after: [START how_to_export_task]
    :end-before: [END how_to_export_task]

.. _howto/operator:CloudDatastoreImportEntitiesOperator:

Import Entities
---------------

To import entities from Cloud Storage to Google Cloud Datastore use
:class:`~airflow.providers.google.cloud.operators.datastore.CloudDatastoreImportEntitiesOperator`

.. exampleinclude:: /../../airflow/providers/google/cloud/example_dags/example_datastore.py
    :language: python
    :dedent: 4
    :start-after: [START how_to_import_task]
    :end-before: [END how_to_import_task]

.. _howto/operator:CloudDatastoreAllocateIdsOperator:

Allocate Ids
------------

To allocate IDs for incomplete keys use
:class:`~airflow.providers.google.cloud.operators.datastore.CloudDatastoreAllocateIdsOperator`

.. exampleinclude:: /../../airflow/providers/google/cloud/example_dags/example_datastore.py
    :language: python
    :dedent: 4
    :start-after: [START how_to_allocate_ids]
    :end-before: [END how_to_allocate_ids]

An example of a partial keys required by the operator:

.. exampleinclude:: /../../airflow/providers/google/cloud/example_dags/example_datastore.py
    :language: python
    :dedent: 0
    :start-after: [START how_to_keys_def]
    :end-before: [END how_to_keys_def]

.. _howto/operator:CloudDatastoreBeginTransactionOperator:

Begin transaction
-----------------

To begin a new transaction use
:class:`~airflow.providers.google.cloud.operators.datastore.CloudDatastoreBeginTransactionOperator`

.. exampleinclude:: /../../airflow/providers/google/cloud/example_dags/example_datastore.py
    :language: python
    :dedent: 4
    :start-after: [START how_to_begin_transaction]
    :end-before: [END how_to_begin_transaction]

An example of a transaction options required by the operator:

.. exampleinclude:: /../../airflow/providers/google/cloud/example_dags/example_datastore.py
    :language: python
    :dedent: 0
    :start-after: [START how_to_transaction_def]
    :end-before: [END how_to_transaction_def]

.. _howto/operator:CloudDatastoreCommitOperator:

Commit transaction
------------------

To commit a transaction, optionally creating, deleting or modifying some entities
use :class:`~airflow.providers.google.cloud.operators.datastore.CloudDatastoreCommitOperator`

.. exampleinclude:: /../../airflow/providers/google/cloud/example_dags/example_datastore.py
    :language: python
    :dedent: 4
    :start-after: [START how_to_commit_task]
    :end-before: [END how_to_commit_task]

An example of a commit information required by the operator:

.. exampleinclude:: /../../airflow/providers/google/cloud/example_dags/example_datastore.py
    :language: python
    :dedent: 0
    :start-after: [START how_to_commit_def]
    :end-before: [END how_to_commit_def]

.. _howto/operator:CloudDatastoreRunQueryOperator:

Run query
---------

To run a query for entities use
:class:`~airflow.providers.google.cloud.operators.datastore.CloudDatastoreRunQueryOperator`

.. exampleinclude:: /../../airflow/providers/google/cloud/example_dags/example_datastore.py
    :language: python
    :dedent: 4
    :start-after: [START how_to_run_query]
    :end-before: [END how_to_run_query]

An example of a query required by the operator:

.. exampleinclude:: /../../airflow/providers/google/cloud/example_dags/example_datastore.py
    :language: python
    :dedent: 0
    :start-after: [START how_to_query_def]
    :end-before: [END how_to_query_def]

.. _howto/operator:CloudDatastoreRollbackOperator:

Roll back transaction
---------------------

To roll back a transaction
use :class:`~airflow.providers.google.cloud.operators.datastore.CloudDatastoreRollbackOperator`

.. exampleinclude:: /../../airflow/providers/google/cloud/example_dags/example_datastore.py
    :language: python
    :dedent: 4
    :start-after: [START how_to_rollback_transaction]
    :end-before: [END how_to_rollback_transaction]


References
^^^^^^^^^^
For further information, take a look at:

* `Datastore API documentation <https://cloud.google.com/datastore/docs/reference/data/rest/v1/projects>`__
* `Product documentation <https://cloud.google.com/datastore/docs>`__