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https://issues.apache.org/jira/browse/AIRFLOW-2664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16751338#comment-16751338
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ASF GitHub Bot commented on AIRFLOW-2664:
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rcorre commented on pull request #3546: AIRFLOW-2664: Support filtering dag
runs by id prefix in API.
URL: https://github.com/apache/airflow/pull/3546
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> Support filtering on /dags/<dag_id>/dag_runs
> --------------------------------------------
>
> Key: AIRFLOW-2664
> URL: https://issues.apache.org/jira/browse/AIRFLOW-2664
> Project: Apache Airflow
> Issue Type: New Feature
> Components: api
> Reporter: Ryan Roden-Corrent
> Priority: Major
>
> the `GET /dags/<dag_id>/dag_runs` endpoint was recently added as described in
> AIRFLOW-2550. I'd like a ?run_id_prefix parameter to filter runs by the
> run_id.
>
> For example, `GET /dags/my_dag/dag_runs?run_id_prefix=create_namespace_foo
> would return the list of dag runs with a run_id starting with
> "create_namespace_foo".
>
> An additional filter would be a `?latest=<n>` query param to limit the count
> to the latest <n> runs (I believe the list returned by GET is already ordered
> chronologically). For example, `GET
> /dags/my_dag/dag_runs?run_id_prefix=create_namespace_foo&latest=1` would
> return the last run with run_id starting with create_namespace_foo.
>
> Do these features sound generally useful, or are they too specific?
>
> In our use case, we have a DAG that provisions namespaced resources. If I'm
> provisioning resources for namespace foo, I would `POST
> /dags/provision/dag_runs \{"run_id": "create_namespace_foo"}`. To check on
> the status, we could run `GET
> /dags/provision/dag_runs?run_id_prefix=create_namespace_foo&latest=1`.
>
> While there is already an endpoint to get status based on an exact dag_run
> ID, this requires storing the id after the POST, which would make our service
> stateful. Filtering by a prefix allows for stateless querying of status.
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