In our Java EE app we are invoking the fb oauth flow to get accessToken.
For this purpose we make a call with the callback url to the fb server with app key and secret.
At this moment the same url is provided in the fb app url section.
However, is it possible if we can some how change the redirect url to go to a different server ? I have seen just changing the callback url in the code does not work. Looks like it has to be same in the code as well as in the fb application.
This make very difficult to test or use the same app to try things from two different web servers.
Any advise on this?
This is unfortunately not possible. Just redirect user to your redirect_uri which will redirect you to the correct location
https://developers.facebook.com/docs/reference/dialogs/oauth/