Auth code and external call back URL

[vidhuisha]

Hi 

I have worked on the scenario where the application makes a call to apigee with code. And also aware of the scenario where apigee acts as the authorization server.

I am tryin to fetch the Authorization code from the query parameter of a callback URL (postman in this scenario) will i  be able to fetch this code if yes could you please help with the same.Thanks in advance