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fix(closes OPEN-9006): multimodal feature not working in production w… #595

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Merged
whoseoyster merged 1 commit into from
Feb 13, 2026
Merged

fix(closes OPEN-9006): multimodal feature not working in production w… #595

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7 changes: 4 additions & 3 deletions src/openlayer/lib/data/_upload.py
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Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ def upload_bytes(
data=data,
object_name=object_name,
content_type=content_type,
fields=fields,
fields=fields or {},
)
elif storage == StorageType.GCP:
return upload_bytes_put(
Expand Down Expand Up @@ -115,9 +115,10 @@ def upload_bytes_multipart(
if isinstance(data, bytes):
data = io.BytesIO(data)

# fields can be None when using local storage (presigned URL has no S3 policy fields)
# S3 requires the "file" field to be last in the multipart form.
# Policy fields (key, policy, x-amz-credential, etc.) must come first.
fields = fields or {}
upload_fields = {"file": (object_name, data, content_type), **fields}
upload_fields = {**fields, "file": (object_name, data, content_type)}

encoder = MultipartEncoder(fields=upload_fields)
headers = {"Content-Type": encoder.content_type}
Expand Down