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Improve empty choices handling in streaming chunks #131

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Merged
seratch merged 1 commit into from
Dec 14, 2025
Merged

Improve empty choices handling in streaming chunks #131

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7 changes: 5 additions & 2 deletions app/openai_ops.py
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Original file line number Diff line number Diff line change
Expand Up @@ -319,9 +319,12 @@ def consume_openai_stream_to_write_reply(
spent_seconds = time.time() - start_time
if timeout_seconds < spent_seconds:
raise TimeoutError()
# Some versions of the Azure OpenAI API return an empty choices array in the first chunk
if context.get("OPENAI_API_TYPE") == "azure" and not chunk.choices:
# Streaming may emit control/usage/keep-alive chunks without choices,
# so guard before indexing
if not chunk.choices:
logging.debug("Stream chunk missing choices; skipping")
continue

item = chunk.choices[0].model_dump()
if item.get("finish_reason") is not None:
finish_reason = item.get("finish_reason")
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