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Apex Complete Course / Asynchronous Apex

Platform event publish

Learn Platform event publish in Apex with a construct-specific explanation, a unique example, a practical boundary, and a mastery check.

12 min read • Intermediate

Platform event publish is an atomic Apex topic inside Asynchronous Apex. The example below uses the actual construct named by the lesson rather than a generic placeholder.

Focus on what Platform event publish changes: the input, binding, control path, object state, collection, runtime effect, or language contract. Then alter one value and verify that the behavior changes for a reason specific to this feature.

Topic-specific example

apex-06-09-platform-event-publish.cls
apex Try It Live
Order_Updated__e evt=new Order_Updated__e(Order_Id__c='7'); EventBus.publish(evt);
Edge case / engineering note

Change the key input in this Apex example and predict the result first; the named construct should be the reason the behavior changes.

Content source & attribution
Original Syntaxis Content · Original Syntaxis Content