I've got a featureset that uses a view on a sql server to generate the data. This works well as long as I have the number of fields reduced and exclude a particularly large field of 'comments'. The data exists in the same DB, but I also have an alternative option to use a REST API call that returns the data as well (this would NOT be to an ESRI API, this is to a totally separate external API). I do not want the users to wait for this data to load (this is a real time application), but I want it to load when the users click on the icon to load the pop up.
What is the best way to do this? API or join to a related table? I believe I may be forced to go the API route, so while we're at it can you all help me find examples on how to implement that? I've found several examples but none that I can get to work in Portal or ARCGIS Pro expression builder when clicking on 'configure popup'
