Messaging & Event Systems

To decouple producers and consumers in an event-driven architecture, use NATS pub/sub with JetStream for event delivery and Temporal for durable workflow orchestration, ensuring reliable async processing without tightly coupled request/response calls.

The best way to handle long-running processes with retries and compensation flows is using Temporal durable workflows and activities to model tasks like order fulfillment, applying saga patterns for consistent state across distributed systems.

NATS JetStream supports event sourcing and replayable streams by providing persistent messaging with subjects, wildcard subscriptions, and queue groups, enabling durable event storage and subsequent event replay for consumers.

You can implement synchronous-feeling RPC interactions over async messaging by using NATS request/reply semantics, which allow lightweight service pings and queries while maintaining underlying asynchronous communication.

You need Temporal signals and queries for workflow orchestration when managing long-running processes that require external updates during execution or runtime state inspection, such as tracking an order through payment and shipping stages.

To set up task queues for reliable event processing in distributed systems, configure correct NATS subjects, streams, and consumers alongside Temporal task queues and activity definitions to guarantee durable execution and automatic retries.