I have issues understanding how the test-api works. Lets say I am interested in stock A and would like to subscribe to the price-feed to the stock. I tried calling "GET /next/2/indicators", however it returns a 401 with "NEXT_INVALID_SESSION". I got the session key following the python 3 example https://github.com/nordnet/next-api-v2-examples/blob/master/python3/test_program.py then passing it as a header.
Also, as I understand it we do not have access to live prices in test (which makes sense) but there should be some delayed prices there of any kind to I can build a program with "test" data and verify that everything works before going live?