Platform Events (with Pub/Sub API)

This deck explains Platform Events, a Salesforce feature enabling asynchronous communication and real-time updates within and outside Salesforce.

• Event-Driven Architecture: It decouples event producers and consumers, simplifying communication in connected systems (e.g., order fulfillment, lead reassignment).
• Platform Events on the Platform: Use cases include creating/deleting reciprocal Account-Contact Relationships for Person Accounts to improve user experience and data cleanliness.
• Pub/Sub Methods: Publishing events can be done via Flow, Process Builder, or Apex Triggers. Subscribing options include CometD, EMP Connector, and the latest Pub/Sub API.
• Components of Event-Driven Systems: Events, Event Messages, Event Producers, Event Channels, Event Consumers, and Event Bus are explained.
• Custom Platform Events: These enable custom notifications (e.g., order information, printer ink levels) and are defined like custom objects.
• Platform Event Fields: Standard and Custom fields are covered, along with system fields like ReplayId and EventUuid.
• Publish Behavior: Options include “Publish After Commit” (for transactional integrity) and “Publish Immediately” (for real-time logging).
• Replaying Events: Subscribers can retrieve missed events within the retention window using Replay ID.
• High-Volume Platform Events: These offer scalability for millions of events, with asynchronous publishing and separate event allocations.
• Streaming Monitor App: This tool (available on AppExchange or GitHub) helps monitor various streaming events.
• Salesforce Event Bus: The legacy version (multi-tenant, built on Apache Kafka) and the new independent runtime version (for scalability and microservices) are discussed.
• Pub/Sub API: Generally available since June 2022, it’s an RPC framework based on gRPC, offering benefits like better performance, bidirectional streaming, and HTTP/2 support.
• Working with Pub/Sub API: Options include using the MuleSoft connector, building a custom client, or referencing developer documentation and GitHub repositories.
• Additional Resources: Links to relevant Salesforce documentation and Trailhead modules are provided.

Overall, the deck offers a comprehensive overview of Platform Events, their benefits, use cases, and implementation methods, including the latest Pub/Sub API. It’s a valuable resource for anyone looking to leverage event-driven architecture in Salesforce.