Getting started

rusty-harness ships the same Rust core to three ecosystems. Pick yours.

Rust

cargo add rusty_harness --features rt-tokio
cargo add tokio --features macros,rt-multi-thread

#[tokio::main]
async fn main() {
    println!("{}", rusty_harness::hello().await);
}

The core crate has no default runtime. Enable rt-tokio for the tokio-backed Runtime, or none at all if you only call APIs that need no runtime — see the async model.

Python

pip install rusty_harness

import asyncio
import rusty_harness

async def main() -> None:
    print(await rusty_harness.hello())

asyncio.run(main())

# Blocking variant, for scripts and the REPL:
print(rusty_harness.hello_sync())

Wheels are abi3 (CPython 3.10+), one per platform, and ship type stubs.

JavaScript and TypeScript

npm i rusty-harness

import { hello } from "rusty-harness";

console.log(await hello()); // hello(): Promise<string>

The default entry point serves Node (exports.node) and bundlers such as Vite or webpack. For a plain <script type="module"> page with no bundler, use the web build and initialise the module first:

import init, { hello } from "rusty-harness/web";

await init();
console.log(await hello());