latest_only

Example of the LatestOnlyOperator

Airflow Fundamentals


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:

#
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# 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
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# with the License. You may obtain a copy of the License at
#
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# KIND, either express or implied. See the License for the
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"""Example of the LatestOnlyOperator"""
import datetime as dt
from airflow import DAG
from airflow.operators.dummy import DummyOperator
from airflow.operators.latest_only import LatestOnlyOperator
from airflow.utils.dates import days_ago
with DAG(
dag_id='latest_only',
schedule_interval=dt.timedelta(hours=4),
start_date=days_ago(2),
tags=['example2', 'example3'],
) as dag:
latest_only = LatestOnlyOperator(task_id='latest_only')
task1 = DummyOperator(task_id='task1')
latest_only >> task1