@Sacha: I'm afraid it's not possible at the moment, no... Hopefully at some point it can get added, but for now it's HTTP client/server only.
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Sacha: I'm afraid it's not possible at the moment, no... Hopefully at some point it can get added, but for now it's HTTP client/server only.