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Event catalogue

The event names of the auction engine.

Verifiedbacked by a real run or committed evidence

Page last changed 7 Nov 2026 (from the git history)

Names are taken from packages/engine/src/evolve.ts. The ledger appends accepted events; see engine and ledger for what it does not hold.

EventMeaning
AUCTION_CREATEDAn auction exists
LOT_ADDEDA lot is added
LOT_OPENEDBidding opens on a lot
BID_RECORDEDA bid was accepted (source manual, qr or voice)
BID_REJECTEDA bid was rejected (room log only)
BID_STRUCKA recorded bid was struck
LOT_CLOSINGThe lot is closing
LOT_EXTENDEDThe soft close extended the lot
LOT_PAUSED, LOT_RESUMEDThe auctioneer paused or resumed the clock
LOT_HAMMEREDThe lot closed with a winner and a price
LOT_UNSOLDThe lot closed with no winner
LOT_ABORTEDThe lot was cancelled before the hammer
LOT_SETTLEDSettlement finished
AUCTION_CLOSEDThe auction is over

The saga has its own state changes: WINNER_SELECTED, CAPTURING and the rest are saga states, not engine events. See saga states.

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