Messaging and ingestion for event-driven systems and streaming analytics.

• Pub/Sub enables you to create systems of event producers and consumers, called publishers and subscribers.
• Publishers communicate with subscribers asynchronously by broadcasting events, rather than by synchronous remote procedure calls (RPCs).
• Publishers send events to the Pub/Sub service, without regard to how or when these events will be processed. Pub/Sub then delivers events to all services that need to react to them. Compared to systems communicating through RPCs, where publishers must wait for subscribers to receive the data, such asynchronous integration increases the flexibility and robustness of the system overall.