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25 lines
545 B
Python
25 lines
545 B
Python
"""Server-Sent-Events wire framing."""
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from __future__ import annotations
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import json
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from typing import Any
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def format_sse(data: Any) -> str:
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if isinstance(data, str):
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return f"data: {data}\n\n"
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return f"data: {json.dumps(data)}\n\n"
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def format_done() -> str:
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return "data: [DONE]\n\n"
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def get_response_headers() -> dict[str, str]:
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return {
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"Content-Type": "text/event-stream",
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"Cache-Control": "no-cache",
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"Connection": "keep-alive",
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"x-vercel-ai-ui-message-stream": "v1",
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}
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