Hi I'm testing everything at the moment in a standard (stand alone) php file. Once everything is working I want to integrate everything in my php application. The issue (I think) is that my application uses a (session) token in the url. So how can I create a return uri and use that session variable. If the session variable isn't present in the url the user will get logged out and need to login again. This behavior also prevent to get the user access token.
As a security feature, OAuth 2 redirect URIs must be pre-registered exactly. Variables/wildcards are not supported in Dropbox OAuth 2 redirect URIs.
What you can do instead is encode the necessary information in the 'state' parameter, and decode it as necessary after the redirect back to your app, to handle it as necessary:
