A typescript package to execute JavaScript and TypeScript code in a webassembly quickjs sandbox
MIT License
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Full Changelog: https://github.com/sebastianwessel/quickjs/compare/v1.2.0...v1.3.0
Published by sebastianwessel 3 months ago
Full Changelog: https://github.com/sebastianwessel/quickjs/compare/1.1.1...v1.2.0
Published by sebastianwessel 3 months ago
Fixes type exports in published packages
Published by sebastianwessel 3 months ago
Published by sebastianwessel 3 months ago
I'm excited to announce the release of QuickJS 1.0.0, a TypeScript package that allows you to safely execute JavaScript code within a WebAssembly sandbox using the QuickJS engine. Perfect for isolating and running untrusted code securely, QuickJS leverages the lightweight and fast QuickJS engine compiled to WebAssembly, providing a robust environment for code execution.
expect
.Here's a simple example of how to use the package:
import { quickJS } from '@sebastianwessel/quickjs'
// General setup like loading and init of the QuickJS wasm
// It is a resource-intensive job and should be done only once if possible
const { createRuntime } = await quickJS()
// Create a runtime instance each time a js code should be executed
const { evalCode } = await createRuntime({
allowFetch: true, // inject fetch and allow the code to fetch data
allowFs: true, // mount a virtual file system and provide node:fs module
env: {
MY_ENV_VAR: 'env var value'
},
})
const result = await evalCode(`
import { join } as path from 'path'
const fn = async () => {
console.log(join('src','dist')) // logs "src/dist" on host system
console.log(env.MY_ENV_VAR) // logs "env var value" on host system
const url = new URL('https://example.com')
const f = await fetch(url)
return f.text()
}
export default await fn()
`)
console.log(result) // { ok: true, data: '<!doctype html>\n<html>\n[....]</html>\n' }
This library is based on:
Tools used:
This project is licensed under the MIT License.
QuickJS 1.0.0 is ideal for developers looking to execute JavaScript code securely within a TypeScript application, ensuring both performance and safety with the QuickJS WebAssembly sandbox. Try it out and let us know what you think!