Upload against a Hosted Feature Service?

Question

* I have a polygon featureclass in a local file Geodatabase.
* I want to Append-Upsert this against an existing Hosted Feature Service in AGO (same schema)
* I know that you can upload the fGDB against the hosted feature service and then use this in an Append with appendUploadId
* I might be missing it, but the the ArcGIS Python API seems to be missing this capability - to perform an upload against an existing hosted feature service?

I know there are other options:

* Upload the fGDB to the portal as an item, and then use this in an append (prefer to avoid this approach)
* Convert the layer to a featurecollection and pass this in directly with the edits param on append * Not entirely sure how to convert my featureclass to a featurecollection (?) in order to do this, happy to attempt this approach as then I can skip out on any uploading.

Thanks for any pointers.

simoxu · Answer

I see.

There is a method called upload for the FeatureLayerCollection class.

arcgis.features module — arcgis 1.5.2 documentation

but the append function for FeatureLayer does not have a upload_id parameter, and in the source code I can see the upload_id was intentionally set to None. So I assume the upload_id was deliberately disabled for the function.

SimonJackson · Answer

it by delete the zipped FGDB item after the update

You can actually bypass the above approach of uploading directly to the portal as an item (still a very valid approach for appending) and upload your fGDB directly against a hosted feature service.

Benefit is that this data is manually cleaned automatically by the back-end Server and no reliance on you having to delete.

Appending definitely supports using this via the appendUploadID parameter on the REST endpoint.

But with the Python API:

* Cant spot anything that might help me upload to begin with
* The append method does not have an equivalent appendUploadID, just a Portal Item ID - item_id

I am ok working around this by using the requests module, but might be worth including in a future release?

simoxu · Answer

Hello Simon,

It seems we have to do it in two steps:

Step 1: update the File Geodatabase item

Step 2: use the File Geodatabase item to update the Feature Service via append function which supports upsert.

I did a quick test here, and it seems works fine.

It would be good if we can update the feature service using zipped FGDB directly. and I don't know why the API doesn't. Hope someone from the development team can comment on this.

But we can workaround it by delete the zipped FGDB item after the update. I am just guessing, it really depends on your own workflow

Cheers