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prefect.events.clients

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Functions

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http_to_ws 

http_to_ws(url: str) -> str

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events_in_socket_from_api_url 

events_in_socket_from_api_url(url: str) -> str

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events_out_socket_from_api_url 

events_out_socket_from_api_url(url: str) -> str

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get_events_client 

get_events_client(reconnection_attempts: int = 10, checkpoint_every: int = 700) -> 'EventsClient'

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get_events_subscriber 

get_events_subscriber(filter: Optional['EventFilter'] = None, reconnection_attempts: int = 10) -> 'PrefectEventSubscriber'

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Classes

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EventsClient

The abstract interface for all Prefect Events clients Methods:

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client_name 

client_name(self) -> str

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emit 

emit(self, event: Event) -> None
Emit a single event

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NullEventsClient

A Prefect Events client implementation that does nothing Methods:

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client_name 

client_name(self) -> str

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emit 

emit(self, event: Event) -> None
Emit a single event

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AssertingEventsClient

A Prefect Events client that records all events sent to it for inspection during tests. Methods:

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client_name 

client_name(self) -> str

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emit 

emit(self, event: Event) -> None
Emit a single event

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pop_events 

pop_events(self) -> List[Event]

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reset 

reset(cls) -> None
Reset all captured instances and their events. For use between tests

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PrefectEventsClient

A Prefect Events client that streams events to a Prefect server Methods:

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client_name 

client_name(self) -> str

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emit 

emit(self, event: Event) -> None
Emit a single event

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AssertingPassthroughEventsClient

A Prefect Events client that BOTH records all events sent to it for inspection during tests AND sends them to a Prefect server. Methods:

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pop_events 

pop_events(self) -> list[Event]

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reset 

reset(cls) -> None

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PrefectCloudEventsClient

A Prefect Events client that streams events to a Prefect Cloud Workspace

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PrefectEventSubscriber

Subscribes to a Prefect event stream, yielding events as they occur. Example: from prefect.events.clients import PrefectEventSubscriber from prefect.events.filters import EventFilter, EventNameFilter filter = EventFilter(event=EventNameFilter(prefix=[“prefect.flow-run.”])) async with PrefectEventSubscriber(filter=filter) as subscriber: async for event in subscriber: print(event.occurred, event.resource.id, event.event) Methods:

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client_name 

client_name(self) -> str

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PrefectCloudEventSubscriber

Methods:

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client_name 

client_name(self) -> str

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PrefectCloudAccountEventSubscriber