pierrejeambrun commented on code in PR #45089:
URL: https://github.com/apache/airflow/pull/45089#discussion_r1893172144
##########
airflow/api_fastapi/core_api/routes/public/variables.py:
##########
@@ -166,6 +167,21 @@ def post_variable(
session: SessionDep,
) -> VariableResponse:
"""Create a variable."""
+ # Check for key length limit
+ if len(post_body.key) > ID_LEN:
+ raise HTTPException(
+ status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
+ detail=f"Variable key exceeds maximum length of {ID_LEN}
characters.",
+ )
Review Comment:
This shouldn't be done manually. Pydantic have a plethora of native
validators for common use cases.
```
Field(max_length=256)
```
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