Outbox Pattern (2026)

Ensure atomic state changes and event publishing by writing both to a database transaction, then publishing asynchronously.

Overview

• Ensuring database writes and event publishing are atomic
• Building reliable event-driven microservices
• Implementing exactly-once message delivery semantics
• Avoiding dual-write problems (DB + message broker)
• Decoupling domain logic from message infrastructure
• High-throughput systems needing CDC-based publishing

Quick Reference

Outbox Table Schema