Arjo So, this turned out to be a bit harder than expected, due to a bug in the Python SDK that occurs when you are using a Travel Card...
Anyway, got around that, and it works now! đ That is, you can now also view the balance of the account that is currently linked to a given card.
First, update the webserver on PythonAnywhere (if you already installed it, you can just do a âgit pullâ and then reload the webapp from its configuration panel).
Similar to how you could query â<base-url>/accountsâ to get the id of the account you were interested in, you can now query â<base-url>/cardsâ to get the id of the card you are interested in. Then, in Numerics, change the URL from â<base-url>/<account-id>/numericsâ to â<base-url>/<card-id>/numericsâ... and you should be good to go! đ