Learn about some of the features of Pub/Sub API.
| Feature | Pub/Sub API |
|---|---|
| Event Encoding | Binary (Apache Avro) |
| Protocol | gRPC and protocol buffers |
| Subscription model | Pull-based—the client requests the number of events to receive as they become available in the event bus. |
| Subscription flow control | Client specifies how many events to receive for a Subscribe call based on event processing speed in the client. |
| Publish status | Final publishing result returned indicates that the event was successfully published or that the publish failed. |
See Also