How can we get the execution history of routineExecuted event like we can do for device events by using device.events() ?
Currently smart app execution history is not available through the API. You could manage some history yourself.
From the web API, you can see the event history by selecting a location (from the “My Location” tab", and at the end of the location information you can see the installed apps, devices, notifications and an event history for all events, including the routingHandler events.