feat: timer mechanics (activate_in/activate_at, timer_id dedup, cancel_timer)#5
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feat: timer mechanics (activate_in/activate_at, timer_id dedup, cancel_timer)#5
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…l_timer) Add scheduled / delayed delivery to OutboxBroker for parity with the faststream-redis-timers API surface: - publish(activate_in=timedelta) / publish(activate_at=datetime) set next_attempt_at so the row is invisible to fetch until the gate opens. publish_batch accepts the same params (applied to every row). - publish(timer_id="x") dedupes per (queue, timer_id) via pg_insert ON CONFLICT DO NOTHING, backed by a partial unique index on the outbox table. Re-publishing the same id is a silent no-op (returns None). - cancel_timer(queue, timer_id, session) deletes a not-yet-leased row; the acquired_token IS NULL guard preserves the lease invariant so in-flight handlers are never clobbered. - NOTIFY is skipped when next_attempt_at is in the future or when an ON CONFLICT made the insert a no-op — listeners can't act on either. The fetch CTE already gated on next_attempt_at <= now(), so no subscriber-side change was needed. Coverage stays at 100%.
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Add scheduled / delayed delivery to OutboxBroker for parity with the faststream-redis-timers API surface:
The fetch CTE already gated on next_attempt_at <= now(), so no subscriber-side change was needed. Coverage stays at 100%.