napi-rs Docs

NAPI-RS is a minimal library for building pre-compiled Node.js addons in Rust.

Sponsor

lib.rs

#[js_function(1)]
fn fibonacci(ctx: CallContext) -> Result<JsNumber> {
  let n = ctx.get::<JsNumber>(0)?.try_into()?;
  ctx.env.create_int64(fibonacci_native(n))
}

index.js

function hello() {
  let result = fibonacci(10000)
  console.log(result)
  return result
}

Features

🚀 Bring native performance for Node.js

👷‍♂️ Memory safe, guaranteed by Rust compiler

⚡️ Zero copy data interactive between Rust & Node.js

⚙️ Parallelism in few lines

Well tested

Ecosystem

Support matrix

Node.js

Node10	Node12	Node14	Node16
✓	✓	✓	✓

Platform support

✅ Means official tested in napi-rs repo.
- Means no official Node.js release.

	i686	x64	aarch64	arm
Windows	✅	✅	✅	-
macOS	-	✅	✅	-
Linux	-	✅	✅	✅
Linux musl	-	✅	✅	-
FreeBSD	-	✅	-	-
Android	-	-	✅	-

neon
node-bindgen