Well, I have done just about all the research I have time for, here is my next question:
If if have a java application: how can I get the java application to verify not only with my account, but with who ever clicks the button.
So apparently: the response is sent to http://localhost…
So now, how do I grab this response!
Well I figured it out using: http://stackoverflow.com/questions/2793150/how-to-use-java-net-urlconnection-to-fire-and-handle-http-requests
Now I found that the only way to post from a non web-browser is password grant flow, and this requires SPECIAL permission from the API team. No wonder I kept getting 403’s.