I’m not sure if this is exactly what you’re asking, but there have been a couple topics (one of which I started) in the last week on using Node.JS and Blynk. I’ve been using this with a Raspberry Pi 3 as of late (coming from doing simple things in C++ and Arduino) and it’s awesome… Blynk is all about events and JS seems like the perfect language to pair with it. If you’re trying to tie your RPI into anything web related, then using JS is, again, the perfect language for utilizing Blynk.