Saga

Trigger compensating transactions to undo changes in a multi-step flow when business rules are violated downstream.

Context, problem, and forces

You are building a reactive, cloud-native system that is composed of bounded isolated components. You employ the Cloud Native Databases Per Component and Event Streaming patterns as the backbone of the system. You atomically produce events based on the Database-First variant of the Event Sourcing pattern and you leverage the CQRS pattern to isolate components from upstream failures and make them responsive, resilient, and elastic. You implement business processes based on the Event Collaboration and/or Event Orchestration patterns. The Data Lake pattern provides a system-wide...