The Workflow SDK 5 beta now supports the standard
Create a controller inside a workflow, pass its signal into one or more steps, and cancel in-flight operations using the same API
That signal stays durable across suspensions and deterministic replay. When a step is running, it sees the cancellation, even when it's in a separate function invocation. Cancellation is also cooperative; steps have to inspect the signal or pass it to an API that supports
Use it to stop a slow step when a durable timeout wins a race, cancel the remaining requests after the first successful response, thread one signal through a multi-step pipeline, or cancel parallel work when an external condition changes.
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AbortController and AbortSignal APIs across workflow and step boundaries.Create a controller inside a workflow, pass its signal into one or more steps, and cancel in-flight operations using the same API
fetch already uses.That signal stays durable across suspensions and deterministic replay. When a step is running, it sees the cancellation, even when it's in a separate function invocation. Cancellation is also cooperative; steps have to inspect the signal or pass it to an API that supports
AbortSignal.Use it to stop a slow step when a durable timeout wins a race, cancel the remaining requests after the first successful response, thread one signal through a multi-step pipeline, or cancel parallel work when an external condition changes.
Try it with
workflow@beta and read the cancellation documentation to learn more.Read more
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