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fix(datasets): add schema arguments to create_dataset #1457

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Merged
hassiebp merged 2 commits into from
Dec 1, 2025
Merged

fix(datasets): add schema arguments to create_dataset #1457

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d58decf
fix(datasets): add schema arguments to create_dataset
hassiebp Dec 1, 2025
030b82b
fix tests
hassiebp Dec 1, 2025
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10 changes: 9 additions & 1 deletion langfuse/_client/client.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3250,20 +3250,28 @@ def create_dataset(
name: str,
description: Optional[str] = None,
metadata: Optional[Any] = None,
input_schema: Optional[Any] = None,
expected_output_schema: Optional[Any] = None,
) -> Dataset:
"""Create a dataset with the given name on Langfuse.

Args:
name: Name of the dataset to create.
description: Description of the dataset. Defaults to None.
metadata: Additional metadata. Defaults to None.
input_schema: JSON Schema for validating dataset item inputs. When set, all new items will be validated against this schema.
expected_output_schema: JSON Schema for validating dataset item expected outputs. When set, all new items will be validated against this schema.

Returns:
Dataset: The created dataset as returned by the Langfuse API.
"""
try:
body = CreateDatasetRequest(
name=name, description=description, metadata=metadata
name=name,
description=description,
metadata=metadata,
inputSchema=input_schema,
expectedOutputSchema=expected_output_schema,
)
langfuse_logger.debug(f"Creating datasets {body}")

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4 changes: 2 additions & 2 deletions tests/test_datasets.py
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Original file line number Diff line number Diff line change
Expand Up @@ -146,7 +146,7 @@ def test_dataset_run_with_metadata_and_description():
dataset_name = create_uuid()
langfuse.create_dataset(name=dataset_name)

input = json.dumps({"input": "Hello World"})
input = {"input": "Hello World"}
langfuse.create_dataset_item(dataset_name=dataset_name, input=input)

dataset = langfuse.get_dataset(dataset_name)
Expand Down Expand Up @@ -187,7 +187,7 @@ def test_get_dataset_runs():
dataset_name = create_uuid()
langfuse.create_dataset(name=dataset_name)

input = json.dumps({"input": "Hello World"})
input = {"input": "Hello World"}
langfuse.create_dataset_item(dataset_name=dataset_name, input=input)

dataset = langfuse.get_dataset(dataset_name)
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