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argonautproject / subscriptions

Clinical Data Subscriptions: Develop FHIR Subscriptions resource to push updates of medical record information to authorized recipients to support the event notification use cases.
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Subscription Timeout #4

Closed GinoCanessa closed 5 years ago

GinoCanessa commented 5 years ago

Was reading through the WebSub spec ( https://www.w3.org/TR/websub/ ) and noticed the concept of a subscription timeout.

I believe this is implemented to ensure that stale subscriptions are removed. For example, if a user deletes an application, the application will never unsubscribe. The endpoint will also likely remain functioning, so the server will have no way of determining that the user is no longer interested in events.

Clients may extend subscriptions before the timeout is reached to ensure continuity.

GinoCanessa commented 5 years ago

Was added, Subscription.End in R5 draft.