ADR-0010: Publish in-process events after commit

Status: Accepted Date: 2026-10-06

Context #

Analytics and integrations should not be embedded in pricing and persistence handlers.

Decision #

Use a typed in-process EventBus. Services create audit entries within transactions and publish domain events after commit. Subscriber failures do not roll back persisted changes.

Alternatives considered #

A message broker adds infrastructure before durable integrations exist. Calling integrations directly in transactions couples availability and response time to external services.

Consequences #

In-process events are best-effort and may be lost after a crash. Audit history is durable. External webhook/email delivery uses the transactional outbox and retries described below.

Durable external delivery is defined by ADR-0016. The in-process bus remains available for best-effort local subscribers.