classifyQuoteNotificationAction

Classify a notification’s lastSeenAction into the quote flow it belongs to. Consumers use the result to scope cache invalidation to the reads a notification can actually affect — an open-anchor event never changes the pending-instant-close feed, and vice versa.

Open-side actions (anchoring an open, or the InstantRFQ price fill) classify as "open"; close-request/fill actions classify as "close"; anything else (including failures and unknown actions) is "other".

import { classifyQuoteNotificationAction } from "@symmio/trading-core";
 
if (classifyQuoteNotificationAction(n.lastSeenAction) === "close") invalidateCloses();

Parameters

Returns

Related

• QuoteNotificationActionKind — the union this returns.
• applyNotificationToQuotes — advances a row’s lifecycle from the same notifications.
• Notifications stream — the frames whose lastSeenAction is classified.