![]() ![]() If the current time is after that, the DAG will execute task2.įor more information on the BranchDateTimeOperator, you can refer to the official Apache Airflow documentation. In this example, if the current time is before noon on January 2, 2022, the DAG will execute task1. Target_time=datetime(2022, 1, 2, 12), # target time is noon on Jan 2, 2022 Here's a basic example of how to use the BranchDateTimeOperator: from datetime import datetimeįrom import BranchDateTimeOperatorįrom _operator import DummyOperator If the current time is after the target time, it follows the else branch. If the current time is before the target time, the operator follows the follow branch. During execution, it compares the current time with the target time. The BranchDateTimeOperator takes in a Python datetime object as a target time. This operator can be particularly useful in scenarios where you want to perform certain tasks only at specific times, such as cleanups and maintenance. The BranchDateTimeOperator in Apache Airflow is a control flow operator that allows you to branch the execution of your DAG based on the current time. If the current date is outside this range, it will follow the task_false branch.įor more information on the BranchDateTimeOperator, you can refer to the Apache Airflow documentation. In this example, if the current date is within the year 2022, the operator will follow the task_true branch. Here is a sample code snippet of how you might use the BranchDateTimeOperator: branch_task = BranchDateTimeOperator( It's like asking the operator to decide if the current time is within a range that doesn't exist. This is because without a defined time range, the operator cannot make a decision on which branch to follow. If both target_upper and target_lower are set to None, the operator will raise an exception. If it falls outside this range, it follows the follow_task_ids_if_false branch. If the current date and time falls within this range, the operator follows the follow_task_ids_if_true branch. ![]() It compares the current date and time with the target_lower and target_upper parameters, which define a time range. The BranchDateTimeOperator in Apache Airflow is designed to make decisions based on the current date and time.
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