sighingnow opened a new issue #17073: URL: https://github.com/apache/airflow/issues/17073
**Description** We propose to add such features to airflow, which will allow the users to define a hook at the DAG level, and been executed before the `pre_execution` and after the `post_execution`. TODO: we will propose detailed API change if such change is acceptable. **Use case / motivation** Airflow supports the operator to define their custom `pre_execution/post_execution` method, which will be exeucted before/after the execution of the operator, respectively. But is hard to inject such hooks to existing operators, without modifying the code. i.e., airfow doesn't support a global pre-hook/post-hook to run before/after execution of every operators. Such kind of hooks could be used for preparing the required inputs and finalizing the produced outputs for every operators in the DAG, etc. **Are you willing to submit a PR?** <!--- We accept contributions! --> Yes, we would like to submit a PR if this feature request is acceptable. **Related Issues** None. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
