Calling Rust code from Node.JS - Why and How | Rust Lang | JavaScript

[@jam_sessions6814]

This is super cool!! Lets go NodeJS * Rust here we go

[@MiniKodjo]

cool, but the real thing wouldnt to build rust to webassembly and import wasm module in nodejs?

[@Ab-cj6gl]

awesome video, i've been learning how to code for 8 months now (just JS). i'm new to this world but i'm fascinated with Rust. i'll def learn it after i get a dev job i also loved the style of the video

[@chrishayuk]

awesome.. glad you're enjoying. as i said, i believe in a hybrid world, so knowing both will help you

[@Saeid-Za]

Could you please do a video on performance benchmark of calling same functionality from WASM, NAPI & Node addons?

[@sortof3337]

It did not work for me. :( I am literally doing the same thing but getting symbol not found when napi tries to load funcs. I am on linux.

[@matthewturner6644]

Great video. Any references on how to do this natively as opposed to with ffi?

[@chrishayuk]

Good shout!!! Let me take a crack at that

[@dragonmax2000]

Very nice tutorial. Did not think I can do that. :)

[@chrishayuk]

glad it was useful

[@MrArkus90]

Thanks for the video, it gives some starting point. But I wonder, how do I share a custom struct (and it's methods) to Node? I would like to have my common code be usable both on Node and Rust, so I don't want to "rewrite" code just to work with Node

[@martynclarke8400]

So I was considering learning c++ for node addons, mainly for the more cpu intensive processes. But I heard about rust and have started doing some digging. Im struggling to find reasons why I would choose anything but rust at this stage. Thanks a lot for this video

[@chrishayuk]

Yeah, rust is your best bet for the stuff you’re trying to do

[@fluffyunicorn7155]

FFI = Foreign Function Interface

[@chrishayuk]

Yeah I’m not sure why I kept messing that up

[@белка-у8б]

So useful, thnks very much!)

[@chrishayuk]

Glad it was helpful!

[@PouyaAtaei]

Great video, thanks.

[@chrishayuk]

Glad you liked it!

[@flat-line]

Hi cris, quality content, thanks. do you aware deno is written in rust , and you can extend it with native rust code also !

[@chrishayuk]

yep. i plan to do a video on this soon, and do a comparison to this one :D. great comment and glad you're enjoying

[@flat-line]

@@chrishayuk looking forward to that video, cheers :)

[@57Javier747]

Thanks sir! Very helpful!

[@chrishayuk]

welcome.. glad it was useful

[@ChumX100]

I can see the benefits of targetting WebAssembly for use in the browser, where only JS is available. But in a server environment, where you can run native code, wouldn't it be simpler and more maintainable to just use Rust if you need the performance it offers? It would be nice to explore the scenarios where Node provides advantages over Rust, in order to justify the "hybrid server" vision.

[@chrishayuk]

great comment.. i discuss some of this in this vid here.. kzbin.info/www/bejne/oqikgpx7bMeIY5o quick version is.. sandboxing and hosting code on others behalf such as sandboxes.

[@ChumX100]

@@chrishayuk I see now. Indeed, very important use cases. I'm a very optimistic about edge computing as a cloud alternative, but hadn't yet thought about eCommerce companies and banks allowing users to run sandboxed code in their platform. That really opens up so many possibilities....

[@chrishayuk]

@@ChumX100 yeah it's pretty exciting. edge running wasm is gonna be big as is e-commerce etc

[@11WicToR11]

your point makes sense, but imagine how many projects are written for node at this point. There for sure are some new features that wouldnt have good enough performance, but simply getting this interface where result can be returned is all you need. The thing i dont understand is how is this better from running external command (in rust) and collecting its output from stdout? I mean that one requires parsing but this video also requires to specify return types and all, theres a little difference, right?

[@rocketsloth3050]

Really enjoyed this video. You explain things in such a good way. I have some questions about some coding issues (cause I’m only about 5 months into coding) that I would like to get your input on. Where would be the best way to get ahold of you?

[@chrishayuk]

glad you're enjoying and the vids are helpful. feel free to dm me on twitter

[@DavidAlsh]

Can't seem to find your video on using wasm with Node.js - any chance you could share that? EDIT: nevermind - kzbin.info/www/bejne/d53Wepukp7aCb6M

[@chonkey]

disliked

[@chrishayuk]

appreciate the feedback