api json tokens field

Hi James,

the tokens field returned in the TeslaFi API call remains null, even when the car is online. In what circumstances does the API return valid streaming tokens?

I want to use this to initiate a websocket connection to 'wss://streaming.vn.teslamotors.com/streaming/' directly without getting the token from the Tesla api. Together with vehicle_id is all what's needed to get realtime streaming data.

Thanks,

Dirk