Platform Events Developer Guide
jSummer '26 (API version 67.0)
Spring '26 (API version 66.0)
Winter '26 (API version 65.0)
Summer '25 (API version 64.0)
Spring '25 (API version 63.0)
Winter '25 (API version 62.0)
Summer '24 (API version 61.0)
Spring '24 (API version 60.0)
Winter '24 (API version 59.0)
Summer '23 (API version 58.0)
Spring '23 (API version 57.0)
Winter '23 (API version 56.0)
Summer '22 (API version 55.0)
Spring '22 (API version 54.0)
Winter '22 (API version 53.0)
Summer '21 (API version 52.0)
Spring '21 (API version 51.0)
Winter '21 (API version 50.0)
Summer '20 (API version 49.0)
Spring '20 (API version 48.0)
Winter '20 (API version 47.0)
Summer '19 (API version 46.0)
Spring '19 (API version 45.0)
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Summer '18 (API version 43.0)
Spring '18 (API version 42.0)
Winter '18 (API version 41.0)
Summer '17 (API version 40.0)
Spring '17 (API version 39.0)
End-to-End Example Using Flows
Java Client Example Using Pub/Sub API
Platform Event Samples
Newer Version Available
Java Client Examples
Check out how to subscribe with a CometD client (EMP Connector) through the command line
or an IDE, or with a Pub/Sub API client.
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Example: Subscribe to Events Using a Java Client (EMP Connector) on the Command Line
Learn how to use the EMP Connector open-source tool on the command line. EMP Connector is a thin wrapper around the CometD library. It hides the complexity of creating a CometD client and subscribing to Streaming API in Java. The example subscribes to a platform event, receives notifications, and supports replaying events with durable streaming. -
Example: Subscribe to Events Using a Java Client (EMP Connector) and an IDE
The Java sample shows you how to use an open-source library called Enterprise Messaging Platform (EMP) Connector in the Eclipse IDE. EMP Connector is a thin wrapper around the CometD library. It hides the complexity of creating a CometD client and subscribing to Streaming API in Java. The example subscribes to a platform event, receives notifications, and supports replaying events with durable streaming. -
Example: Subscribe to Events Using Pub/Sub API
The Java client example uses Pub/Sub API to publish and subscribe to platform events. Pub/Sub API provides a single interface to publish and subscribe to event messages. Based on gRPC and HTTP/2, Pub/Sub API enables efficient delivery of binary event messages in the Apache Avro format.