branch_day_of_week_operator

Example DAG demonstrating the usage of BranchDayOfWeekOperator.

Airflow Fundamentals


Providers:

Run this DAG

1. Install the Astronomer CLI:Skip if you already have the CLI

2. Initate the project in a local directory:

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

dags
directory.

4. Run the DAG from the local directory where the project was initiated:

#
# 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 DAG demonstrating the usage of BranchDayOfWeekOperator.
"""
from datetime import datetime
from airflow import DAG
from airflow.operators.dummy import DummyOperator
from airflow.operators.weekday import BranchDayOfWeekOperator
with DAG(
dag_id="example_weekday_branch_operator",
start_date=datetime(2021, 1, 1),
catchup=False,
tags=["example"],
schedule_interval="@daily",
) as dag:
# [START howto_operator_day_of_week_branch]
dummy_task_1 = DummyOperator(task_id='branch_true', dag=dag)
dummy_task_2 = DummyOperator(task_id='branch_false', dag=dag)
branch = BranchDayOfWeekOperator(
task_id="make_choice",
follow_task_ids_if_true="branch_true",
follow_task_ids_if_false="branch_false",
week_day="Monday",
)
# Run dummy_task_1 if branch executes on Monday
branch >> [dummy_task_1, dummy_task_2]
# [END howto_operator_day_of_week_branch]