topic Re: Append data to existing feature layer (Python) in ArcGIS REST APIs and Services Questions

Append data to existing feature layer (Python)

JackSilburn — Tue, 07 Jan 2020 05:50:44 GMT

Hello

I'm writing a Python program to publish (append) data to an ArcGIS Online feature layer, every 10 minutes.

I am having issues understanding how to implement the ArcGIS REST API method required to achieve this.

Doing testing with the 'Update Data > Append Data to Layer' button in ArcGIS Online;
I uploaded a test .csv file and inspected the network activity in Chrome developer tools;

3. I was hoping to mimic these requests, but instead of a .csv file, the data comes from a json string in code.

4. Are addItem, analyse and append all required for this operation?

5. My understanding is that addItem requires a 'file' to be uploaded. Can I get around this by sending the data in the append request? Perhaps as a featureCollection?

This all seems quite complicated, as compared to the updateFeatures method which I have used previously.

Side question, I am querying a variety of sensor data. If I append the sensor data to their ArcGIS Online feature counterparts, will I end up with duplicate features, stacked on top of one another? I only need one feature for each sensor location.

Am I better off not using a feature layer for this task?

Regards

Re: Append data to existing feature layer (Python)

JoshuaBixby — Tue, 07 Jan 2020 15:30:35 GMT

Given that ArcGIS API for Python | ArcGIS for Developers is primarily a Python wrapper for the ArcGIS REST API, I suggest you use the ArcGIS API for Python instead of trying to create your own REST calls via HTTP in Python.

Re: Append data to existing feature layer (Python)

JackSilburn — Thu, 16 Jan 2020 06:04:47 GMT

I sort of figured this out, using addFeatures from the ArcGIS Online REST API.

See this thread: Add multiple features in addFeatures API request? (posted by me also!)

Re: Append data to existing feature layer (Python)

carlosreyes_dotca — Wed, 12 Oct 2022 23:00:50 GMT

Would you happen to know how to append attachments to the records?

Thanks!

Carlos