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DEPRECATED: Topic notify topics

A functional topic that can be used by clients to receive notifications whenever topics are created, modified, or removed in a part of the topic tree.

A client can subscribe to a topic notify topic to request notifications that contain one of the following levels of notification when a topic is added:
  • topic name and type
  • topic name, type, and properties
  • topic name, type, and metadata
  • full topic definition (including name, type, properties, and metadata)

The client uses a handler to handle topic notifications. To receive notifications, the handler must select which parts of the topic tree to receive notifications on. You can use topic names or topic selectors or both to define these parts of the topic tree.

Considerations when using a topic notify topic

In some APIs, a client that subscribes to a topic notify topic must provide the handler that handles the notifications.