Add service application authentication

[ctennis]

I can confirm this works great, and is a much more secure way of configuring API access into Okta (though is a bit more work to initially setup).

[cbruno10]

Thanks @ctennis for the pull request! We'll review this tomorrow and let you know if we have any feedback.

[LalitLab]

@ctennis
Thanks, for raising PR for adding service application authentication mode.
Most of the changes look good.

I have left few suggestions on PR after testing it on my side.

[cbruno10]

@ctennis Hey, while testing and looking for additional scopes, we couldn't seem to find the scope to include for the okta_user_type table; when we try to query that table using a private key, we receive an error. Just curious, did you run across any scopes for this resource type while searching?

[ctennis]

@ctennis Hey, while testing and looking for additional scopes, we couldn't seem to find the scope to include for the okta_user_type table; when we try to query that table using a private key, we receive an error. Just curious, did you run across any scopes for this resource type while searching?

You're right, I can't seem to find a scope here either. I'll open a service ticket with Okta, the API for this lives under the /meta hierarchy and I wonder if they just overlooked it.

[ctennis]

Confirmed with Okta, this particular API isn't supported via oauth. I upvoted the case regarding it. Not a blocker for us, but I suppose a limitation of this particular table.

https://ideas.okta.com/app/#/case/132309

[LalitLab]

Confirmed with Okta, this particular API isn't supported via oauth. I upvoted the case regarding it. Not a blocker for us, but I suppose a limitation of this particular table.

https://ideas.okta.com/app/#/case/132309

Thank you for checking the details that far.

[cbruno10]

Thanks again @ctennis for the contribution, appreciate it!