In scenarios where your service interacts with both a database and external APIs, you may encounter issues such as: funds being deducted without a corresponding order in the database, inventory being locked indefinitely due to a phantom order, or a courier delivering a package that was never requested. These situations stem from the architectural challenge of double writes. Fortunately, there are established patterns to address this, including Transactional Outbox, Result Table, and Saga Compensation. This article not only delves into these theoretical solutions but also presents a practical project in Scala that you can clone and run to see these concepts in action.
What to Do When an HTTP Request Succeeds but the Database Transaction Rolls Back
Explore solutions for handling failed database transactions after successful HTTP requests.
