You may wish to create a Card which repeatedly fetches new data at a certain interval, so that changes can be reflected without the user needing to reload the page itself.
This can be achieved with a custom action, as covered in the Card Actions guide.
The custom action will poll the Card's internal or external connector script at a given interval to update the data model.
All that is required to enable the refresh action for a Card, is to set the card's
action.initialize function to the following:
The refresh period is set in milliseconds and is represented by the
300000 in the example above (5 minutes) - you can alter this value to any desired period in milliseconds.
You can find the custom actions tab in the Card Designer:
This same process can be applied to any Card to enable self-refreshing functionality.