The need to support third parties is exactly why we ended up embarking on a phased deprecation of our websocket implementation. As it turned out barely anybody

The need to support third parties is exactly why we ended up embarking on a phased deprecation of our websocket implementation. As it turned out barely anybody wanted to learn how to open a websocket connection and relearn all the oddities of a bespoke websocket connection (error handling, etc.) whereas with REST all these things are just more or less standardized.