The data needs to be as up-to-date as possible. Real-time is ideal.
Would like the added benefit of being able to add this feature layer to ArcGIS Online or Portal for ArcGIS.
Thanks in advance.
Hi, there are a few ways you can do this: you could use some code to push the data to a Feature Service (in ArcGIS Online or ArcGIS Enterprise) via the REST API (addFeatures endpoint). Alternatively, you could have a process the regularly runs and pulls the data from your third party service into a Feature Service. A third option might be Koop.