javy
define-function
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| javy | define-function | |
|---|---|---|
| 6 | 1 | |
| 0 | 36 | |
| - | - | |
| 5.3 | 1.6 | |
| 12 months ago | about 1 year ago | |
| Rust | JavaScript | |
| Apache License 2.0 | MIT License |
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javy
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Are there plans for WebAssembly as compilation target?
I don't think you can compile JS to WASM... You can run your JS code in a sandboxed runtime implemented in WebAssembly, which... I guess gives you sandboxing, but not much else.
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Is it possible to run a containerized SvelteKit/Node-based website as WASM module?
Yes exactly! Thanks for nudging me in the direction of: - https://github.com/Shopify/javy - https://github.com/WebAssembly/design/issues/219
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QuickJS Running in WebAssembly
Iām not sure if anyone has done so yet for Go, but Shopify has done this for Rust.
https://github.com/Shopify/javy/tree/main/crates/quickjs-was...
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Wasmtime 1.0
> - JS is notably missing from the list of languages supported on the front page. But I see mentions of a Spidermonkey.wasm in the blog post. Is running JS on top of wasmtime in production a realistic prospect today? If so, where can I read more? (mainly interested in this for the instantiation time benefits, though maybe all/most of that will be negated by the embedded JS engine?)
Shopify and others use QuickJS as their JS engine of choice. See https://github.com/Shopify/javy as a starting point. The real benefit is allowing authors of plugins to write JS and not AssemblyScript, not any performance or instantiation time benefits.
> - How should I go about building a typical web service on top of wasmtime? Can wasmtime itself handle network requests/connections or would I need to build the web server in some other host language and pass request data to wasmtime modules? Haven't been able to find anything in the docs about this.
There are a lot of choices for this. None I would consider mature, but some leads:
- https://github.com/deislabs/wagi
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Announcing support for WASI on Cloudflare Workers
You will need to use something like javy which incidentally accepts input via stdin and produces output via stdout which would work perfectly (to my knowledge) as a wasi worker.
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The State of WebAssembly 2022
yes it has, https://github.com/Shopify/javy among others
define-function
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QuickJS Running in WebAssembly
Another library I found recently, which has a different take (simpler API) for using QuickJS compiled to WASM:
https://github.com/taowen/define-function
What are some alternatives?
Viceroy - Viceroy provides local testing for developers working with Compute.
sandbox - A nifty JavaScript sandbox for Node.js
wasmer - š The leading Wasm Runtime supporting WASIX, WASI and Emscripten
native-messaging-txiki.js
wizard-engine - Research WebAssembly Engine
spidermonkey-wasi-embedding
lunatic - Lunatic is an Erlang-inspired runtime for WebAssembly
wazero - wazero: the zero dependency WebAssembly runtime for Go developers
js-compute-runtime - JavaScript SDK and runtime for building Fastly Compute applications
wasmtime - A fast and secure runtime for WebAssembly
wasm-micro-runtime - WebAssembly Micro Runtime (WAMR)
WASI - WebAssembly System Interface