I am trying to access an API that uses OAuth2.0 authentication. They use a postback url where they will send back code to the URL with a parameter attached. How do I determine what the postback URL is so that my app will accept that code back from the provider?
Note: I see that there is something in the set up of the Alexa Skill - but I don't want the skill users to access the API. The access is done from just the one account.