javy

I have an instrumented version of QuickJS that can be used in the javy toolchain: https://github.com/bytecodealliance/javy There are two primary goals: 1. Emit metrics directly about the QuickJS runtime similar to node metrics 2. Expose the Observe API as js bindings With the Observe API exposed to JS, you can do manual instrumentation. I have also instrumented the pieces of QuickJS that invoke JS functions in order to automatically emit spans and it works, but still trying to fill some information gaps to make it more usable than manual instrumentation. > are you wiring it up like how APM is wired up in JVM applications or what exactly are you doing? Does it effect stack trace outputs or leave those alone? I can't speak to how JVM does it, but no this does not effect the call stack.

Related links from the article: Javy: JS to WebAssembly toolchain - https://github.com/bytecodealliance/javy Bringing Javascript to WebAssembly for Shopify Functions - https://shopify.engineering/javascript-in-webassembly-for-sh...

Late to the party, but I didn't see anyone mentioning this: Shopify seems to be curiously extremely involved in sponsoring WebAssembly-related projects. It's a gold sponsor on AssemblyScript[1], it used to develop javy[2] which compiles JavaScript to WebAssembly, a member of the BytecodeAlliance[3]. I wouldn't think they sponsor LadyBird just for LibWasm[4], as that doesn't make any sense, but technically, they add that to their wasm sponsorships now. Honestly, it looks like a really nice place to work if you like WebAssembly, I wouldn't mind a collaboration or to work with them. [1] https://www.assemblyscript.org/ [2] https://github.com/Shopify/javy [3] https://bytecodealliance.org/ [4] https://github.com/SerenityOS/serenity/tree/master/Userland/...

This post demonstrates how to implement plugins for Rust using QuickJS in WebAssembly for safe arbitrary code execution. It relies heavily on on the work done by Shopify with Javy (https://github.com/Shopify/javy) but makes the deployment process easier. I hope it is useful.

This post demonstrates how to implement plugins for Rust using QuickJS in WebAssembly for safe arbitrary code execution. It relies heavily on on the work done by Shopify with Javy (https://github.com/Shopify/javy) but makes the deployment process easier. I hope it is useful.