Outbox Pattern for Reliable Event Publishing
Solving the dual-write problem in microservices. Order and event written atomically to orders table and outbox table in a single DB transaction. Debezium CDC tails the WAL, publishes to Kafka. Downstream services consume with idempotency keys. Dead Letter Queue for failed processing.
general · architecture diagram.
Solving the dual-write problem in microservices. Order and event written atomically to orders table and outbox table in a single DB transaction. Debezium CDC tails the WAL, publishes to Kafka. Downstream services consume with idempotency keys. Dead Letter Queue for failed processing.
Created by
February 9, 2026
Updated
February 13, 2026 at 5:47 PM
Type
architecture
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