Issue description

I was trying to run day2 code solution Business Idea Generator. But the React UI application was failing at run time while trying process response stream from the OpenAI.

Fix description

That error usually happens when the response stream is abruptly ended without a notification to the front-end application regarding end of stream, and the front-end application breaks anticipating for more data stream.

As a solution, I updated event_stream() function and added try/finally block to return [DONE] at the end of stream response. Front-end application recognizes [DONE] and the connection is closed seamlessly instead terminating abruptly. This worked for me.

def event_stream(): try: for chunk in stream: content = chunk.choices[0].delta.content if content:

                full_response.append(content)
                lines = content.split("\n")
                for line in lines[:-1]:
                    yield f"data: {line}\n\n"
                    yield "data:  \n"
                yield f"data: {lines[-1]}\n\n"
    except Exception as e:
        logging.error(f"Error during streaming: {str(e)}")
        yield f"data: Error: {str(e)}\n\n"
    finally:
        yield "data: [DONE]\n\n"
        complete_response = ''.join(full_response)
        logging.info(f"Complete response: {repr(complete_response)}")
return StreamingResponse(event_stream(), media_type="text/event-stream")