perf: add guard to skip subscriptions for invalid keys #695
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fabioh8010
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Oct 29, 2025
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| // Fast path: if subscribing to a skippable collection member id, return undefined as loaded immediately | ||
| if (isFirstConnectionRef.current) { | ||
| try { | ||
| const [, memberId] = OnyxUtils.splitCollectionMemberKey(key); | ||
| if (OnyxUtils.getSkippableCollectionMemberIDs().has(memberId)) { | ||
| // Finalize initial state as loaded undefined and stop further first-connection flows | ||
| if (resultRef.current[1].status !== 'loaded' || resultRef.current[0] !== undefined) { | ||
| resultRef.current = [undefined, {status: 'loaded'}]; | ||
| onyxSnapshotCache.setCachedResult<UseOnyxResult<TReturnValue>>(key, cacheKey, resultRef.current); | ||
| } | ||
| isFirstConnectionRef.current = false; | ||
| shouldGetCachedValueRef.current = false; | ||
| return resultRef.current; | ||
| } | ||
| } catch (e) { | ||
| // Not a collection member, continue as usual | ||
| } | ||
| } |
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Can we avoid this? OnyxUtils.splitCollectionMemberKey isn't that cheap and getSnapshot is already pretty much heavy with lots of other logics.
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Details
Eliminate wasted emissions and reduce callback storms by adding a guard that skips subscriptions for invalid keys like
undefinedornullRelated Issues
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Automated Tests
Manual Tests
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