In this article, Dunith Dhanushka explains how the Transactional Outbox pattern can help solve the problem of dual writes in distributed systems. The article discusses the drawbacks of synchronous and asynchronous approaches, and how the Transactional Outbox pattern works to ensure atomicity. It comprises two components- the OUTBOX table and the message relay. The article highlights the benefits of using the pattern and brings in the fundamentals one should use when implementing the pattern in production. This article is a must-read for those looking to improve the reliability of their event notifications in their microservices architecture.
