Regarding Rust not having a mature websockets lib, this library seems to be a decent websockets implementation at a glance and passes all of the autobahn tests:

Regarding Rust not having a mature websockets lib, this library seems to be a decent websockets implementation at a glance and passes all of the autobahn tests: https://github.com/housleyjk/ws-rs/ https://github.com/housleyjk/ws-rs/ In any case, that is where I'd begin :)