Import JSON
You can mimic the import functionality you see in Operator by making your own import process for JSON files.
We'll assume you know how to upload files through the API and that you have access to a TempFile.ID or ClientFile.ID.
As JSON is a very flexible format, here is an example of the expected file content:
Import
JSON Import
Request body
Response
Javascript example
When the Pending Action is marked as completed, here is the result to expect: