Propagate data changes with data notifications
Data Notifications automatically propagate data changes from the data hub to downstream systems.
A data notification is configured with:
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A Trigger that defines when the data notification should be sent.
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A Dataset that defines the content of the data notification and sends Messages.
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A Target that defines the destination of the data notification.
Notification trigger
A Data Notification is executed by a Trigger that can be either:
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A batch completion event.
You may optionally configure a list of Watched Entities to trigger the data notification only if the batch includes at least one of those entities. -
A scheduled event based on a CRON expression.
Dataset and messages
A data notification uses a named query to build a dataset and send messages. This dataset takes the form of a JSON payload that can be sent in a unique message or paginated to control the number of records per message.
Notification target
A target is the destination where the data notification messages are sent. There are three types of targets:
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REST API endpoint: An HTTP request is issued with a body containing the JSON payload.
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Kafka topic: A Kafka event is sent. The key of this event is the notification name, and the value is the JSON payload.
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JMS (Java Message Service) queue or topic: A JMS text message containing the JSON payload is sent.