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# File Uploads
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Support for GraphQL multipart file uploads following the GraphQL multipart request specification.
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## Capabilities
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### Upload Functions
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```python { .api }
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def combine_multipart_data(operations: dict, files_map: dict, files: dict) -> dict:
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    """
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    Combine multipart form data for GraphQL file uploads.
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    Parameters:
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    - operations: GraphQL operations dict
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    - files_map: Mapping of file placeholders to form fields
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    - files: Dict of uploaded files
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    Returns:
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    Combined GraphQL request dict with file objects
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    """
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```
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### Upload Scalar
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```python { .api }
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upload_scalar: ScalarType
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```
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## Usage Examples
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```python
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from ariadne import make_executable_schema, upload_scalar
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type_defs = """
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    scalar Upload
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    type Mutation {
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        uploadFile(file: Upload!): String!
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    }
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"""
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mutation = MutationType()
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@mutation.field("uploadFile")
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def resolve_upload_file(_, info, file):
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    # file is a file-like object
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    content = file.read()
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    return f"Uploaded {len(content)} bytes"
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schema = make_executable_schema(type_defs, mutation, upload_scalar)
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```