Is there a way to include real time sensor readings of energy consumption, inlet flow and outlet flow of heating demand, temperature readings from a SensorThings API into a cityGML file with EnergyADE transformer. I know of HTTPCaller but can this be

If this is going into a web application, it would make sense to have the front end take the reading and display them. That means it can be updated in realtime. If you're using FME to do it, you will need to re run the workbench to get a new value. This would only then be a snapshot in time and therefore you would need to rerun the workbench very frequently to keep the values 'realtime'