Adding a query parameter to the Instagram auth redirect_uri doesn't work?

Question

Steps to reproduce

1. Register a redirect_uri in the client: http://example.com/publisher/auth
2. Direct a user to the /oauth/authorize endpoint with the

Answer 1

Had the same issue today. To get the custom data passed between requests you must include it as state param. My authorize request url looked something like this:

https://www.instagram.com/oauth/authorize?client_id=SOME_CLIENT_ID&response_type=code&redirect_uri=http://example.com/auth/InstagramRedirect/&state=855C0114-F860-420A-AEB1-A276644FCCEA

Notice the & and state=...