20 lines
577 B
Python
20 lines
577 B
Python
from __future__ import annotations
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from collections.abc import Iterator
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def html5_sse_event(event: str, fragment: str) -> str:
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data = "\n".join(f"data: {line}" for line in fragment.splitlines())
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return f"event: {event}\nretry: 5000\n{data}\n\n"
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def html5_sse_if_changed(last_fragments: dict[str, str], event: str, fragment: str) -> Iterator[str]:
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if last_fragments.get(event) == fragment:
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return
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last_fragments[event] = fragment
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yield html5_sse_event(event, fragment)
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def html5_sse_comment(message: str) -> str:
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return f": {message}\n\n"
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