2.7 KiB
napi-rs
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Platform Support
Operating Systems
Linux | macOS | Windows x64 MSVC |
---|---|---|
✓ | ✓ | ✓ |
NodeJS
Node10 | Node 12 | Node13 |
---|---|---|
✓ | ✓ | ✓ |
A minimal library for building compiled Node add-ons in Rust.
This library depends on N-API and requires Node 8.9 or later. It is still pretty raw and has not been tested in a production setting.
One nice feature is that this crate allows you to build add-ons purely with the Rust toolchain and without involving node-gyp
.
Building
This repository is a Cargo crate. Any napi-based add-on should contain Cargo.toml
to make it a Cargo crate.
In your Cargo.toml
you need to set the crate-type
to "cdylib"
so that cargo builds a C-style shared library that can be dynamically loaded by the Node executable. You'll also need to add this crate as a dependency.
[lib]
crate-type = ["cdylib"]
[dependencies]
napi-rs = "0.1"
[build-dependencies]
napi-build = "0.1"
And create build.rs
in your own project:
// build.rs
extern crate napi_build;
fn main() {
napi_build::setup();
}
So far, the napi
build script has only been tested on macOS
Linux
and Windows x64 MSVC
.
See the included test_module for an example add-on.
Run cargo build
to produce the Dynamic lib
file. And install the napi-rs
to help you copy Dynamic lib
file to .node
file in case you can require
it in your program.
{
"package": "your pkg",
"dependencies": {
"napi-rs": "^0.1"
},
"scripts": {
"build": "cargo build && napi",
"build-release": "cargo build --release && napi --release"
}
}
Then you can require your native binding:
require('./target/debug|release/[module_name].node')
The module_name
would be your package
name in your Cargo.toml
.
xxx => ./target/debug|release/xxx.node
xxx-yyy => ./target/debug|release/xxx_yyy.node
You can also copy Dynamic lib
file to an appointed location:
napi [--release] .
napi [--release] ./mylib
napi [--release] ./mylib.node
Testing
Because libraries that depend on this crate must be loaded into a Node executable in order to resolve symbols, all tests are written in JavaScript in the test_module
subdirectory.
To run tests:
cd test_module
npm run build
npm test