`app_key = self.cluster.service_runner._job.engine._api_config.app_key`

[johny-b]

1. app_key is available in an easy way only on the Golem instance
2. app_key is necessary to authorize requests sent via the network websocket
3. Golem instance is usually pretty far in the code from places where we use websockets

--> Thus the super-ugly line in the title.

I'm not sure what to do with this. The best solution would be - imho - to somehow just hide the app_key, so that it would be added to requests in an invisible way. I'm not sure though if there is a way to do this in a clean way.

Maybe we could consider some "just simple request/response" layer over the websocket, built in yapapi? <- Also probably not the best idea :(