I know it's probably a long shot, but is there any way ArcGIS Online could be set up with Postgres?
We have a fairly specific business case, where a client has to keep all the data in their Postgres database, but would love to access front-end web mapping capabilities of ArcGIS Online. Is there any way ArcGIS Online can display data from Postgres, without it being actually published to to ArcGIS Online?
Basically, we would want all the data to stay in Postgres and only use AGOL to display it.
The only way I could think of, is to use ArcGIS Server (Enterprise) as an intermediate.