When the Saga Server sends a command to a Worker Service, it must first store that command in an "Outbox" table within its own database transaction. A separate publisher process sends the message. This ensures "at-least-once" delivery. The Worker Service must be idempotent to handle duplicates.
The Saga Client Server pattern addresses these challenges by introducing a coordinator that manages the interactions between the client and server. The coordinator acts as a middleman, allowing the client to send a request to the server and then managing the subsequent interactions between the server and other services or databases. saga client server
To implement a Saga Client Server effectively, follow these best practices: When the Saga Server sends a command to
Orchestrated Sagas , as they align best with traditional client-server expectations (request/response, centralized logging, and easy error handling). The Worker Service must be idempotent to handle duplicates