Hi, I'm trying to activate popup for a number of layers in a MapImageLayer which is added to a map.
I have read the blogpost Earl Medina's Blog and other relevant treads. The content of the MapImageLayer changes with high frequency and I can not use one static json to update relevant properties due to changes in layer names etc. Allso I suspect that all layerdefinitions will be lost at each update of the service, not showing anything else than the top level items:
So if I just want to activate the popup and choose one field to display (a field that allways exists), do i have to build the whole json for each grouplayer and layer, based on information from the service (arcgis REST api), to be able to set visible = True under ['popupInfo']['fieldInfos']?