[release/11.0-preview4] Implement Circuit.RequestCircuitPauseAsync#66455
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wtgodbe merged 13 commits intorelease/11.0-preview4from Apr 24, 2026
Merged
[release/11.0-preview4] Implement Circuit.RequestCircuitPauseAsync#66455wtgodbe merged 13 commits intorelease/11.0-preview4from
Circuit.RequestCircuitPauseAsync#66455wtgodbe merged 13 commits intorelease/11.0-preview4from
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The callback controls timing, not permission. The pause always happens once the promise resolves. This matches javiercn's feedback that the framework owns the decision, the app owns the timing. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
ilonatommy
added
area-blazor
dariatiurina
approved these changes
Apr 24, 2026
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Backport of #66265 to release/11.0-preview4
/cc @ilonatommy
Implement
Circuit.RequestCircuitPauseAsyncIt didn't make it to p4 on time.
Description
Adds a new public API
Circuit.RequestCircuitPauseAsyncthat lets server-side code request the connected Blazor client to begin the graceful circuit-pause flow. The method dispatches aJS.RequestPausemessage onto the circuit's dispatcher (serialized withrenders/event handlers) and returns
trueif the client was successfully asked to begin pausing.The client can defer the pause via an optional
onPauseRequestedcallback inCircuitStartOptions.Design doc: #66244
Fixes #62327
Customer Impact
Enables developers to programmatically trigger circuit pause from server-side code (e.g., during deployments or load balancing), which was previously only possible through client-initiated navigation. Without this, there is no server-side API to gracefully pause a Blazor Server circuit.
Regression?
Risk
The change is additive - a new public method on
Circuitwith no modifications to existing behavior. Guarded by state checks (disposed, initialized, connected) and fully idempotent.Verification
Packaging changes reviewed?