jgoedeke opened a new issue, #58146:
URL: https://github.com/apache/airflow/issues/58146
### Apache Airflow version
3.1.2
### If "Other Airflow 2/3 version" selected, which one?
_No response_
### What happened?
When emitting an Asset with a non-empty `extra` dictionary (using the
standard Asset/AssetAlias machinery in Airflow 3.1.2), the resulting asset has
an empty `extra` field in the database and API, despite being created with
extra metadata.
```python
from datetime import UTC, datetime
from airflow.providers.standard.operators.python import PythonOperator
from airflow.sdk import Asset, AssetAlias, Metadata, dag, task
first_alias = AssetAlias(
name='a.first.data.alias',
)
first_asset = Asset(
name='a.first.data.asset',
uri='s3://bucket/mydata.csv',
extra={'path': '/some/local/path.txt'},
)
@dag(
schedule=None,
tags=['test'],
)
def test_alias_producer_dag():
def produce_asset():
yield Metadata(
first_asset,
{'timestamp': datetime.now(tz=UTC).isoformat()},
first_alias,
)
PythonOperator(
task_id='produce_asset',
python_callable=produce_asset,
outlets=[first_alias],
)
@dag(
schedule=[first_alias],
tags=['test'],
)
def test_alias_consumer_dag():
@task(inlets=[first_alias])
def process_asset(triggering_asset_events: dict):
for event in triggering_asset_events:
print(f'Event: {event}')
process_asset()
test_alias_producer_dag()
test_alias_consumer_dag()
```
Task log:
```
[2025-11-10 14:54:24] INFO - Event: Asset(name='a.first.data.asset',
uri='s3://bucket/mydata.csv', group='asset', extra={}, watchers=[])
source=task.stdout
[2025-11-10 14:54:24] INFO - Event: AssetAlias(name='a.first.data.alias',
group='asset') source=task.stdout
```
Example API response (assets endpoint):
```
{
"id": 116,
"name": "a.first.data.asset",
"uri": "s3://bucket/mydata.csv",
"group": "",
"extra": {},
...
}
```
### What you think should happen instead?
The `extra` dictionary provided at Asset creation should be saved and
returned by the API and database. Assets should always include their extra
metadata if set.
### How to reproduce
See example
### Operating System
docker
### Versions of Apache Airflow Providers
_No response_
### Deployment
Other Docker-based deployment
### Deployment details
_No response_
### Anything else?
Can not verify Asset extra via the UI because of #57566
### 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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