pvaling opened a new issue, #32367:
URL: https://github.com/apache/airflow/issues/32367
### Apache Airflow version
Other Airflow 2 version (please specify below)
### What happened
Airflow 2.3.4 (but actual code seems to have same behaviour).
I have mapped task with xcom value.
I want to get xcom value of particular instance or xcom values of all task
instances.
I am using standard REST API method
/dags/{dag_id}/dagRuns/{dag_run_id}/taskInstances/{task_id}/xcomEntries/{xcom_key}
And it throws an error
`
File
"/home/airflow/.local/lib/python3.9/site-packages/sqlalchemy/orm/query.py",
line 2850, in one_or_none
return self._iter().one_or_none()
File
"/home/airflow/.local/lib/python3.9/site-packages/sqlalchemy/engine/result.py",
line 1510, in one_or_none
return self._only_one_row(
File
"/home/airflow/.local/lib/python3.9/site-packages/sqlalchemy/engine/result.py",
line 614, in _only_one_row
raise exc.MultipleResultsFound(
sqlalchemy.exc.MultipleResultsFound: Multiple rows were found when one or
none was required
`
Is it any way of getting xcom of mapped tasks via API?
### What you think should happen instead
_No response_
### How to reproduce
Make dag with mapped task. Return xcom value in every task. Try to get xcom
value via API.
### Operating System
ubuntu 20.04
### Versions of Apache Airflow Providers
_No response_
### Deployment
Other
### Deployment details
Standard
### Anything else
_No response_
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
### Code of Conduct
- [X] I agree to follow this project's [Code of
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
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