Before Publish handler

KV Store for auction state

Bid amount validation

Tiered minimum increments

Auction state check

Self-outbid prevention

Idempotency key handling

KV Store locking

Lock cleanup

Bid message enrichment

Client bid message fields

Auction state definitions

Valid state transitions

Closing state threshold

Server countdown broadcast

Closing tick frequency

Normal tick frequency

Channel naming convention

Catalog channels

Message persistence

Countdown message type

Auction start broadcast

Reserve stored server-side

Reserve met broadcast

Auto-extend trigger

Auto-extend time addition

Max extensions limit

Max duration limit

Extension broadcast

Extension number tracking

Outbid notification channel

Outbid notification content

Outbid in same transaction

SDK restore setting

Retry policy configuration

Presence subscription

Local countdown interpolation

Server time correction

Bid retry with backoff

Max retry limit

Bid history fetch

Channel cleanup

SDK userId

Structured error handling

Auction end broadcast

Catalog removal

Completed catalog update

Winner notification

Reserve met check on end

Bidder read-write grant

Admin channel restriction

Notification channel read-only

Short TTL for bidder grants

Bidder identity masking

Analytics via After Publish