Pub/Sub API and Event-Driven Integration

Headless Salesforce & APIsPub/Sub API and Event-Driven IntegrationSubscribe to and publish platform events, Change Data Capture and real-time monitoring events over gRPC with the Pub/Sub API. Covers flow control, replay, Avro decoding, CDC headers, Event Relay, allocations, and how to build reliable, idempotent event-driven integrations.Advanced · about 90 minutesWhat you will learn

Explain the Salesforce event bus: platform events, Change Data Capture, real-time event monitoring and custom channels

Describe the Pub/Sub API RPCs, gRPC metadata headers and FetchRequest flow control

Choose replay presets and persist replay IDs so subscribers resume without data loss

Build subscribers and publishers in Node.js and Python, including Avro encoding and decoding

Decode CDC ChangeEventHeader bitmap fields and handle gap and overflow events

Design idempotent, at-least-once consumers and apply outbox, CQRS-lite and warehouse-sync patterns

Contents

The Salesforce event bus

Pub/Sub API fundamentals

Node.js subscriber and publisher

Python subscriber and publisher with generated stubs

The CDC ChangeEventHeader in depth

Error handling and reconnection

Delivery guarantees and idempotent consumers

Event Relay to Amazon EventBridge

Event allocations and monitoring

Architecture patterns

Best practices

Common pitfalls

Hands-on exercises

Key takeaways