Source code for airflow.example_dags.example_branch_day_of_week_operator

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"""
Example DAG demonstrating the usage of BranchDayOfWeekOperator.
"""
from __future__ import annotations

import pendulum

from airflow import DAG
from airflow.operators.empty import EmptyOperator
from airflow.operators.weekday import BranchDayOfWeekOperator
from airflow.utils.weekday import WeekDay

with DAG(
    dag_id="example_weekday_branch_operator",
    start_date=pendulum.datetime(2021, 1, 1, tz="UTC"),
    catchup=False,
    tags=["example"],
    schedule="@daily",
) as dag:
    # [START howto_operator_day_of_week_branch]
[docs] empty_task_1 = EmptyOperator(task_id="branch_true")
empty_task_2 = EmptyOperator(task_id="branch_false") empty_task_3 = EmptyOperator(task_id="branch_weekend") empty_task_4 = EmptyOperator(task_id="branch_mid_week") branch = BranchDayOfWeekOperator( task_id="make_choice", follow_task_ids_if_true="branch_true", follow_task_ids_if_false="branch_false", week_day="Monday", ) branch_weekend = BranchDayOfWeekOperator( task_id="make_weekend_choice", follow_task_ids_if_true="branch_weekend", follow_task_ids_if_false="branch_mid_week", week_day={WeekDay.SATURDAY, WeekDay.SUNDAY}, ) # Run empty_task_1 if branch executes on Monday, empty_task_2 otherwise branch >> [empty_task_1, empty_task_2] # Run empty_task_3 if it's a weekend, empty_task_4 otherwise empty_task_2 >> branch_weekend >> [empty_task_3, empty_task_4] # [END howto_operator_day_of_week_branch]

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