AnvayKharb opened a new pull request, #56855:
URL: https://github.com/apache/airflow/pull/56855
This pull request introduces improvements and bug fixes to both the Airflow
API and UI codebases. The main focus is on enhancing the XCom API endpoint to
support retrieval of entries from prior DAG run dates, ensuring proper
serialization in update operations, and improving type safety and correctness
in UI components related to DAG tags and flexible forms.
### Airflow API improvements
* Added a new `include_prior_dates` query parameter to the `get_xcom_entry`
endpoint, allowing users to optionally retrieve XCom entries from earlier DAG
runs if not present in the specified run. This is now tested to ensure correct
behavior.
[[1]](diffhunk://#diff-fb52cdde8a46d6f5e53c3897f2df2e975ede884ab543f0cec7d6e890c71cba82R81)
[[2]](diffhunk://#diff-fb52cdde8a46d6f5e53c3897f2df2e975ede884ab543f0cec7d6e890c71cba82R90)
[[3]](diffhunk://#diff-e7d4b0a7b972dd8857d177d8d6501b8685e1c46c878f3b12067100cb4f1a1707R213-R268)
* Fixed the update logic for XCom entries to correctly serialize the new
value from the patch body, addressing a bug in the assignment.
[[1]](diffhunk://#diff-fb52cdde8a46d6f5e53c3897f2df2e975ede884ab543f0cec7d6e890c71cba82L318)
[[2]](diffhunk://#diff-fb52cdde8a46d6f5e53c3897f2df2e975ede884ab543f0cec7d6e890c71cba82L339-R339)
* Minor code cleanup in DAG run validation for XCom creation, removing a
redundant line.
### Airflow UI improvements
* Improved type safety in DAG tag filtering and infinite query logic by
explicitly casting API responses to the expected `DAGTagCollectionResponse`
type.
[[1]](diffhunk://#diff-3b1bb6c839ca6f04a53ea88d17f300ebb28bcffd3de2bc8179e4a16dc60ccd54L212-R212)
[[2]](diffhunk://#diff-c9d6e5f312b5cf3931edc8146c6236e6bf54a2279e0d72be2935ea78d60ce1c6L49-R58)
* Refined array field detection logic in the flexible form component to use
optional chaining and avoid errors when item types are undefined.
* Added `ts-morph` as a new dependency in the UI package for future
type-safe code manipulations.- Add include_prior_dates parameter to XCom API
endpoint with default True
- Enable XCom retrieval from different DAG execution dates in Web UI
- Add comprehensive test coverage for include_prior_dates functionality
- Fix TypeScript linting errors in UI components and queries
- Maintain backward compatibility for existing API consumers
Fixes issue where XCom values pushed in one DAG could not be retrieved from
another DAG if their scheduled execution dates differed.
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