Using Topic Views 4: Throttling Reference Topics

Push Technology - July 9, 2019

Throttling reference topics

Topic views can replicate a topic branch to another branch that is throttled to update less often. We do this using a throttling clause.

  • Open the Topic Views tab.
  • Click Add and create a new topic view named Football/Free.

  • Give it the specification: map ?Demos/Sportsbook/Football/England// to Demos/Sportsbook/Free/Football/<path(5)> throttle to 1 update every 5 seconds.
  • Click Add and open the Topics tab.
  • Browse to the new topic branch Demos/Sportsbook/Free to see the new topics.

  • Subscribe to the new topics and check that they are updated every 5 seconds at most.

Notice the new throttling clause: throttle to 1 update every 5 seconds. As the topic name suggests, we have built a limited version of the application for non-paying customers, providing less frequent updates and so consuming less bandwidth.

Summary: Use the throttling clause to throttle the rate of reference topic updates.

Next: Using topic content to name a reference topic.


The Diffusion® Intelligent Event-Data Platform makes it easy to consume, enrich and deliver event-data in real-time across all network conditions. Push Technology pioneered and is the sole provider of real-time delta data streaming™ technology that powers mission-critical business applications worldwide. Leading brands use Push Technology to bring innovative products to market faster by reducing the software development efforts using the low-code features. The Diffusion® Intelligent Event-Data Platform is available on-premise, in-the-cloud, or in a hybrid configuration. Learn how Push Technology can reduce infrastructure costs, and increase speed, efficiency, and reliability, of your web, mobile, and IoT application.

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