Personally i use mqtt over websockets, paho[0] is a good js library. It support last will for dc's and the message queue design makes it easy to think of and de

Personally i use mqtt over websockets, paho[0] is a good js library. It support last will for dc's and the message queue design makes it easy to think of and debug. There also a lot of mq brokers that will scale well. [0]: https://www.eclipse.org/paho/index.php?page=clients/js/index.php https://www.eclipse.org/paho/index.php?page=clients/js/index...