#Airflow xcom update

#Airflow xcom update

Update base sensor operator to support XCOM return value (20656). I'll add relevant example code and their sources below: New release apache-airflow version 2.3.0 Apache Airflow 2.3.0 on Python PyPI. Or you could wrap the operator itself in a PythonOperator that converts the XCOM value from string to its native type. You could do this by either creating a class that inherits the receiving operator's class and calls json.loads prior to or inside the execute() method, Airflow 1.xįrom what I've gathered, the only way to solve this issue in Airflow 1.x is to deserialise the string used json.loads somewhere in the operator code. Authoring and Scheduling Administration and Deployment Integration Public Interface of Airflow Using Airflow Public Interfaces Using the Public Interface for DAG Authors DAGs Operators airflow. I'll list my solutions below by Airflow version.

The underlying issue is that the templated string is not deserialised into its native type, rather it is simply interpolatedĪnd remains as a string. Xcom in Apache Airflow UI First, let’s understand that is Xcom as Python’s language essence: how it defined, how it finds values relative by default only to your DAG Run and etc. Configure Airflow to use the vineyard XCom backend by specifying the environment variable export. This issue happens as the boto3 call inside the operator expects a native Python list rather than a string. external_trigger : # parameter on conf object may not exist, so default to empty dict manual_params = dag_run. # dag_run.conf only accessible when externally triggered if dag_run.

get ( 'dag_run' ) script_params = config. Def define_step ( ** kwargs : DagRun ) - > None : dag_run : DagRun = kwargs.