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    to you under the Apache License, Version 2.0 (the
    "License"); you may not use this file except in compliance
    with the License.  You may obtain a copy of the License at

 ..   http://www.apache.org/licenses/LICENSE-2.0

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    software distributed under the License is distributed on an
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.. _howto/operator:LevelDBOperator:

Google LevelDB Operator
================================

`LevelDB <https://github.com/google/leveldb>`__ is a fast key-value storage library written at Google that provides
an ordered mapping from string keys to string values.

.. note::

    To use LevelDB hooks and operators you must requires installation of ``plyvel``.  It will be
    installed if you specify the extra ``apache-airflow-providers-google[leveldb]``.

Put key
^^^^^^^^^^^^^^^

Get, put, delete key or write_batch, create database with comparator or different options in LevelDB is performed with the
:class:`~airflow.providers.google.leveldb.operators.leveldb.LevelDBOperator` operator.

.. exampleinclude:: /../../google/tests/system/google/leveldb/example_leveldb.py
    :language: python
    :dedent: 4
    :start-after: [START howto_operator_leveldb_put_key]
    :end-before: [END howto_operator_leveldb_put_key]


Reference
^^^^^^^^^

For further information, look at:

* `Product Documentation <https://github.com/google/leveldb/blob/main/doc/index.md>`__
* `Client Library Documentation <https://plyvel.readthedocs.io/en/latest/>`__
