I am trying to use GP Developer API (without much success) and keep returning to the issue of editID. For example on the reference page for Edits.apks:list, we see an example of HTTP request:
GET https://www.googleapis.com/androidpublisher/v3/applications/packageName/edits/editId/apks
What is editId there? Where do I find it for an APK that is already uploaded to GP Console? Even better, can I find it using the API itself?