The requirement is for a near real-time feed of student registrations from Salesforce to an external learning system, using Salesforce events. The Streaming API is specifically designed for this purpose. It enables external clients to subscribe to a channel on the Salesforce event bus and receive notifications, such as Platform Events, in near real-time. When a student registration event is published in Salesforce, the Streaming API pushes the event data to the subscribed learning system, fulfilling the requirement efficiently without the need for continuous polling.

1. Salesforce Platform Events Developer Guide

"Subscribe to Platform Events": "External apps subscribe to events using CometD... An external app can subscribe to platform events in Salesforce using the Streaming API. The subscription process is the same as for other Streaming API events

such as PushTopic events or generic streaming events."

2. Salesforce Streaming API Developer Guide

"Streaming API Overview": "Use Streaming API to receive near-real-time streams of data from the Salesforce platform... Streaming API is useful when you want notifications to be pushed from the server to the client based on criteria that you define." The guide explicitly lists Platform Events as a supported event type for subscription.

3. Salesforce Architect Documentation

"Integration Patterns and Practices"

Page 13

"Remote Process Invocation—Request and Reply" vs. "Fire and Forget": This document contrasts request-reply patterns (typical of REST/SOAP) with event-based

fire-and-forget patterns. The scenario requires an event-based pattern

for which the Streaming API is the primary tool for external subscribers. The document states

"Platform events can be consumed by an external system via Streaming API (CometD)."