Auth SDK

[Harsha Vardhini R]

I have decided to use the OAuth for my token acquisition. And I have been calling the urls as being mentioned here. I need a clarification, is there any sdk provided for Confluence Auth ? And also it is mentioned to get the resource-id to generate the Rest API urls. Is that always necessary to append this as part of url ?

And it seems like there are only 1callback url is allowed for the app using Oauth. Is there any way I can add more than 1 call back url ?