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A standalone, domain-agnostic pub/sub seam: an EventBus that owns its subscriber registry and streams Event values from producers to listeners in process. Boundary-crossing (Celery/DB/workers) is left to subscribers, keeping the bus single-responsibility. Includes the immutable Event value object and full unit coverage.
20 lines
479 B
Python
20 lines
479 B
Python
"""In-process domain event bus.
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Domain-agnostic pub/sub. Producers ``await bus.publish(...)``; subscribers
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``bus.subscribe(...)``. Domain modules depend on it, never the reverse.
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from app.event_bus import bus
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await bus.publish("document.indexed", {"document_id": 42}, search_space_id=7)
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"""
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from __future__ import annotations
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from .bus import EventBus, Subscriber, bus
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from .event import Event
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__all__ = [
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"Event",
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"EventBus",
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"Subscriber",
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"bus",
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]
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