One of the projects I am currently working on involves Workspace One Access (formally VMware Identity Manager) and configuring a 3rd Party Identity Provider for Identity Federation. As with anything, using the UI for the first time to validate the workflow is perfectly fine for me but after that, I normally prefer to automate, especially as I was rebuilding this particular setup a few times. I saw that Workspace One Access (WSO Access) had a REST API but I was surprised that there were no APIs for actually managing the configurations.
I figured before giving up, I should see at least see how the UI was performing these operations as "some API" should exists and started up one of my favorite browser tools Chrome Developer Console to inspect the HTTP requests. I came to learn there were an additional set of "Jersey" APIs (no background on the Jersey name, but its part of the API URI) that might do exactly what I was looking for. After a bit of trial/error, I was able to fully automate the creation of both a WSO Access Directory as well as 3rd Party Identity Provider.