WebAssembly in Production: A Compiler in a Web Page • Brian Carroll • GOTO 2023

Brian Carroll explains how he compiled the Roc programming language compiler to WebAssembly to run it directly inside a web browser.

This presentation was recorded at GOTO Copenhagen 2023. #GOTOcon #GOTOcph gotocph.com Brian Carroll - Maintainer of Roc Programming Language RESOURCES linkedin.com/in/briancarrolltech github.com/brian-carroll roc-lang.org ABSTRACT WebAssembly has been around for several years now, and we've all seen "hello world" demos. But what's it like to deploy a large complex WebAssembly project into production for real users? Brian talks us through how he built an online developer tool for a new programming language called Roc, putting a complex compiler into a web page. Find out how WebAssembly affected the codebase, why he decided to use WebAssembly to generate more WebAssembly, and how he glued it all together with JavaScript. [...] TIMECODES 00:00 Intro 00:48 WebAssembly (Wasm) basics 01:24 Roc Programming Language 02:21 Port to Wasm? 03:09 Demo: Online coding tools 06:20 How do they work? 10:53 Challenge: Download size 16:20 Challenge: Wasm limitations 18:45 Using Web APIs 19:53 Receiving input 21:27 JavaScript/Wasm interop 25:03 Displaying output 29:00 Evaluating the user's code 34:56 Summary 36:54 Outro Download slides and read the full abstract here: gotocph.com/2023/sessions/2848 RECOMMENDED BOOKS Kevin Hoffman • Programming WebAssembly with Rust • amzn.to/48msEBz Valerio De Sanctis • Building Web APIs with ASP.NET Core • amzn.to/42MWuOq Brian Sletten • WebAssembly: The Definitive Guide • amzn.to/3OQdHRf Sendil Kumar Nellaiyapen • Practical WebAssembly • amzn.to/4bK3j7s twitter.com/GOTOcon linkedin.com/company/goto- instagram.com/goto_con facebook.com/GOTOConferences #WebAssembly #Wasm #Roc #Roclang #JavaScript #WASI #WebAssemblySystemInterface #FunctionalProgramming #WasmArchitecture #REPL #Rustlang CHANNEL MEMBERSHIP BONUS Join this channel to get early access to videos & other perks: youtube.com/channel/UCs_tLP3AiwYKwdUHpltJPuA/join Looking for a unique learning experience? Attend the next GOTO conference near you! Get your ticket at gotopia.tech Sign up for updates and specials at gotopia.tech/newsletter SUBSCRIBE TO OUR CHANNEL - new videos posted almost daily. youtube.com/user/GotoConferences/?sub_confirmation=1