leveldb

Example use of LevelDB operators.

Databases


Providers:

Run this DAG

1. Install Astronomer CLISkip if you already have the CLI

2. Initate the project:

3. Copy and paste the code below into a file in the

dags
directory.

4. Add the following to your requirements.txt file:

5. Run the DAG:

#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# 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
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
"""
Example use of LevelDB operators.
"""
from airflow import models
from airflow.providers.google.leveldb.operators.leveldb import LevelDBOperator
from airflow.utils.dates import days_ago
default_args = {
'owner': 'airflow',
}
with models.DAG(
'example_leveldb',
default_args=default_args,
start_date=days_ago(2),
schedule_interval=None,
tags=['example'],
) as dag:
# [START howto_operator_leveldb_get_key]
get_key_leveldb_task = LevelDBOperator(
task_id='get_key_leveldb', leveldb_conn_id='leveldb_default', command='get', key=b'key', dag=dag
)
# [END howto_operator_leveldb_get_key]
# [START howto_operator_leveldb_put_key]
put_key_leveldb_task = LevelDBOperator(
task_id='put_key_leveldb',
leveldb_conn_id='leveldb_default',
command='put',
key=b'another_key',
value=b'another_value',
dag=dag,
)
# [END howto_operator_leveldb_put_key]
get_key_leveldb_task >> put_key_leveldb_task