implement-saga-orchestration

Saga orchestration coordinates multi-step business processes across services using a state machine with forward and compensation handlers. It manages execution flow externally, applying compensating actions to maintain consistency without distributed transactions when a step fails.

You need a saga pattern when coordinating multi-step business processes across service boundaries that require rollback. It applies to distributed workflows where compensating actions and robust error handling are necessary to maintain data consistency without distributed transactions.

Implement idempotent steps by using correlation and idempotency keys within the saga state machine. This ensures forward steps and reverse compensations are safe to retry during automatic rollback paths when a step fails, yielding clear failure states.

Saga orchestration applies to real-world workflows like order processing, asset provisioning, and cross-system processes. It coordinates these distributed business processes by defining a state machine with compensating actions for each step to ensure reliable execution.

The best way to handle rollback paths is to configure an external orchestrator to run the state machine and log outcomes. This orchestrator automatically triggers reverse compensations and defines clear failure states when a step fails.

An external orchestrator manages execution flow directly, making it suitable for complex state-machine based sagas requiring clear failure states. Choreography relies on event-driven coordination, whereas this orchestration approach provides explicit forward and compensation handlers.