Reference: Delete Features API: Delete Features—ArcGIS REST API: Services Directory | ArcGIS for Developers
Scenario A: object ID 1 exists in my layer. If I send a deleteFeatures request through the REST API using the objectIds parameter, and I get the expected response with the "deleteResults" array in the returned JSON object.
Scenario B: object ID 2 doesn't exist in my layer; I already deleted it, but something happened and my application failed to mark it as deleted in it's local state. So, later on, I try to delete it again. If I send the same request as scenario A, the response I receive is simply an empty JSON object.
From these I have a few questions:
1 - Is this expected behavior? I question it because as far as I can tell, it's not documented.
2 - If an object ID I provided to the deleteFeatures API is not included in the response, can I safely assume that that object ID does not exist in the layer? Or would I need to make a query to double check?
3 - Are there any other similar quirks with the add/update/deleteFeatures API that may not be documented or may be easy to overlook?
