On the item page of a hosted service you can export to fgdb and other formats.
The benefit of this over an fme reader and writer workflow is the easy preservation of unique ids, relationships and attachments. This also takes no local compute power/time.
Please make a way perform to the "Export To FGDB" (or other formats) found on the hosted feature layer item page within FME.
There is already a method to download items from arcgis online with the use of the ArcGISOnlineConnector (https://docs.safe.com/fme/2020.1/html/FME_Desktop_Documentation/FME_Transformers/Transformers/arcgisonlineconnector.htm)
If we could create the fgdb through fme, we could also download and manipulate it within a workspace.
I'm doing some lengthy transformations on a million+ records. Performing these actions through the Online Readers/Writers is taking hours (90% is reading from the REST API) and I need to reduce that time.
I also see this workflow being a simple daily backup tool for ArcGIS online.
Thanks!