|
|
|
|
NOTE: The default branch has been renamed!
|
|
|
|
|
master is now named main
|
|
|
|
|
|
|
|
|
|
If you have a local clone, you can update it by running:
|
|
|
|
|
|
|
|
|
|
```shell
|
|
|
|
|
git branch -m master main
|
|
|
|
|
git fetch origin
|
|
|
|
|
git branch -u origin/main main
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
# **node-addon-api module**
|
|
|
|
|
This module contains **header-only C++ wrapper classes** which simplify
|
|
|
|
|
the use of the C based [Node-API](https://nodejs.org/dist/latest/docs/api/n-api.html)
|
|
|
|
|
provided by Node.js when using C++. It provides a C++ object model
|
|
|
|
|
and exception handling semantics with low overhead.
|
|
|
|
|
|
|
|
|
|
There are three options for implementing addons: Node-API, nan, or direct
|
|
|
|
|
use of internal V8, libuv, and Node.js libraries. Unless there is a need for
|
|
|
|
|
direct access to functionality that is not exposed by Node-API as outlined
|
|
|
|
|
in [C/C++ addons](https://nodejs.org/dist/latest/docs/api/addons.html)
|
|
|
|
|
in Node.js core, use Node-API. Refer to
|
|
|
|
|
[C/C++ addons with Node-API](https://nodejs.org/dist/latest/docs/api/n-api.html)
|
|
|
|
|
for more information on Node-API.
|
|
|
|
|
|
|
|
|
|
Node-API is an ABI stable C interface provided by Node.js for building native
|
|
|
|
|
addons. It is independent of the underlying JavaScript runtime (e.g. V8 or ChakraCore)
|
|
|
|
|
and is maintained as part of Node.js itself. It is intended to insulate
|
|
|
|
|
native addons from changes in the underlying JavaScript engine and allow
|
|
|
|
|
modules compiled for one version to run on later versions of Node.js without
|
|
|
|
|
recompilation.
|
|
|
|
|
|
|
|
|
|
The `node-addon-api` module, which is not part of Node.js, preserves the benefits
|
|
|
|
|
of the Node-API as it consists only of inline code that depends only on the stable API
|
|
|
|
|
provided by Node-API. As such, modules built against one version of Node.js
|
|
|
|
|
using node-addon-api should run without having to be rebuilt with newer versions
|
|
|
|
|
of Node.js.
|
|
|
|
|
|
|
|
|
|
It is important to remember that *other* Node.js interfaces such as
|
|
|
|
|
`libuv` (included in a project via `#include <uv.h>`) are not ABI-stable across
|
|
|
|
|
Node.js major versions. Thus, an addon must use Node-API and/or `node-addon-api`
|
|
|
|
|
exclusively and build against a version of Node.js that includes an
|
|
|
|
|
implementation of Node-API (meaning an active LTS version of Node.js) in
|
|
|
|
|
order to benefit from ABI stability across Node.js major versions. Node.js
|
|
|
|
|
provides an [ABI stability guide][] containing a detailed explanation of ABI
|
|
|
|
|
stability in general, and the Node-API ABI stability guarantee in particular.
|
|
|
|
|
|
|
|
|
|
As new APIs are added to Node-API, node-addon-api must be updated to provide
|
|
|
|
|
wrappers for those new APIs. For this reason, node-addon-api provides
|
|
|
|
|
methods that allow callers to obtain the underlying Node-API handles so
|
|
|
|
|
direct calls to Node-API and the use of the objects/methods provided by
|
|
|
|
|
node-addon-api can be used together. For example, in order to be able
|
|
|
|
|
to use an API for which the node-addon-api does not yet provide a wrapper.
|
|
|
|
|
|
|
|
|
|
APIs exposed by node-addon-api are generally used to create and
|
|
|
|
|
manipulate JavaScript values. Concepts and operations generally map
|
|
|
|
|
to ideas specified in the **ECMA262 Language Specification**.
|
|
|
|
|
|
|
|
|
|
The [Node-API Resource](https://nodejs.github.io/node-addon-examples/) offers an
|
|
|
|
|
excellent orientation and tips for developers just getting started with Node-API
|
|
|
|
|
and node-addon-api.
|
|
|
|
|
|
|
|
|
|
- **[Setup](#setup)**
|
|
|
|
|
- **[API Documentation](#api)**
|
|
|
|
|
- **[Examples](#examples)**
|
|
|
|
|
- **[Tests](#tests)**
|
|
|
|
|
- **[More resource and info about native Addons](#resources)**
|
|
|
|
|
- **[Badges](#badges)**
|
|
|
|
|
- **[Code of Conduct](CODE_OF_CONDUCT.md)**
|
|
|
|
|
- **[Contributors](#contributors)**
|
|
|
|
|
- **[License](#license)**
|
|
|
|
|
|
|
|
|
|
## **Current version: 5.1.0**
|
|
|
|
|
|
|
|
|
|
(See [CHANGELOG.md](CHANGELOG.md) for complete Changelog)
|
|
|
|
|
|
|
|
|
|
[](https://nodei.co/npm/node-addon-api/) [](https://nodei.co/npm/node-addon-api/)
|
|
|
|
|
|
|
|
|
|
<a name="setup"></a>
|
|
|
|
|
|
|
|
|
|
node-addon-api is based on [Node-API](https://nodejs.org/api/n-api.html) and supports using different Node-API versions.
|
|
|
|
|
This allows addons built with it to run with Node.js versions which support the targeted Node-API version.
|
|
|
|
|
**However** the node-addon-api support model is to support only the active LTS Node.js versions. This means that
|
|
|
|
|
every year there will be a new major which drops support for the Node.js LTS version which has gone out of service.
|
|
|
|
|
|
|
|
|
|
The oldest Node.js version supported by the current version of node-addon-api is Node.js 14.x.
|
|
|
|
|
|
|
|
|
|
## Setup
|
|
|
|
|
- [Installation and usage](doc/setup.md)
|
|
|
|
|
- [node-gyp](doc/node-gyp.md)
|
|
|
|
|
- [cmake-js](doc/cmake-js.md)
|
|
|
|
|
- [Conversion tool](doc/conversion-tool.md)
|
|
|
|
|
- [Checker tool](doc/checker-tool.md)
|
|
|
|
|
- [Generator](doc/generator.md)
|
|
|
|
|
- [Prebuild tools](doc/prebuild_tools.md)
|
|
|
|
|
|
|
|
|
|
<a name="api"></a>
|
|
|
|
|
|
|
|
|
|
### **API Documentation**
|
|
|
|
|
|
|
|
|
|
The following is the documentation for node-addon-api.
|
|
|
|
|
|
|
|
|
|
- [Full Class Hierarchy](doc/hierarchy.md)
|
|
|
|
|
- [Addon Structure](doc/addon.md)
|
|
|
|
|
- Data Types:
|
|
|
|
|
- [Env](doc/env.md)
|
|
|
|
|
- [CallbackInfo](doc/callbackinfo.md)
|
|
|
|
|
- [Reference](doc/reference.md)
|
|
|
|
|
- [Value](doc/value.md)
|
|
|
|
|
- [Name](doc/name.md)
|
|
|
|
|
- [Symbol](doc/symbol.md)
|
|
|
|
|
- [String](doc/string.md)
|
|
|
|
|
- [Number](doc/number.md)
|
|
|
|
|
- [Date](doc/date.md)
|
|
|
|
|
- [BigInt](doc/bigint.md)
|
|
|
|
|
- [Boolean](doc/boolean.md)
|
|
|
|
|
- [External](doc/external.md)
|
|
|
|
|
- [Object](doc/object.md)
|
|
|
|
|
- [Array](doc/array.md)
|
|
|
|
|
- [ObjectReference](doc/object_reference.md)
|
|
|
|
|
- [PropertyDescriptor](doc/property_descriptor.md)
|
|
|
|
|
- [Function](doc/function.md)
|
|
|
|
|
- [FunctionReference](doc/function_reference.md)
|
|
|
|
|
- [ObjectWrap](doc/object_wrap.md)
|
|
|
|
|
- [ClassPropertyDescriptor](doc/class_property_descriptor.md)
|
|
|
|
|
- [Buffer](doc/buffer.md)
|
|
|
|
|
- [ArrayBuffer](doc/array_buffer.md)
|
|
|
|
|
- [TypedArray](doc/typed_array.md)
|
|
|
|
|
- [TypedArrayOf](doc/typed_array_of.md)
|
|
|
|
|
- [DataView](doc/dataview.md)
|
|
|
|
|
- [Error Handling](doc/error_handling.md)
|
|
|
|
|
- [Error](doc/error.md)
|
|
|
|
|
- [TypeError](doc/type_error.md)
|
|
|
|
|
- [RangeError](doc/range_error.md)
|
|
|
|
|
- [Object Lifetime Management](doc/object_lifetime_management.md)
|
|
|
|
|
- [HandleScope](doc/handle_scope.md)
|
|
|
|
|
- [EscapableHandleScope](doc/escapable_handle_scope.md)
|
|
|
|
|
- [Memory Management](doc/memory_management.md)
|
|
|
|
|
- [Async Operations](doc/async_operations.md)
|
|
|
|
|
- [AsyncWorker](doc/async_worker.md)
|
|
|
|
|
- [AsyncContext](doc/async_context.md)
|
|
|
|
|
- [AsyncWorker Variants](doc/async_worker_variants.md)
|
|
|
|
|
- [Thread-safe Functions](doc/threadsafe.md)
|
|
|
|
|
- [ThreadSafeFunction](doc/threadsafe_function.md)
|
|
|
|
|
- [TypedThreadSafeFunction](doc/typed_threadsafe_function.md)
|
|
|
|
|
- [Promises](doc/promises.md)
|
|
|
|
|
- [Version management](doc/version_management.md)
|
|
|
|
|
|
|
|
|
|
<a name="examples"></a>
|
|
|
|
|
|
|
|
|
|
### **Examples**
|
|
|
|
|
|
|
|
|
|
Are you new to **node-addon-api**? Take a look at our **[examples](https://github.com/nodejs/node-addon-examples)**
|
|
|
|
|
|
|
|
|
|
- **[Hello World](https://github.com/nodejs/node-addon-examples/tree/HEAD/1_hello_world/node-addon-api)**
|
|
|
|
|
- **[Pass arguments to a function](https://github.com/nodejs/node-addon-examples/tree/HEAD/2_function_arguments/node-addon-api)**
|
|
|
|
|
- **[Callbacks](https://github.com/nodejs/node-addon-examples/tree/HEAD/3_callbacks/node-addon-api)**
|
|
|
|
|
- **[Object factory](https://github.com/nodejs/node-addon-examples/tree/HEAD/4_object_factory/node-addon-api)**
|
|
|
|
|
- **[Function factory](https://github.com/nodejs/node-addon-examples/tree/HEAD/5_function_factory/node-addon-api)**
|
|
|
|
|
- **[Wrapping C++ Object](https://github.com/nodejs/node-addon-examples/tree/HEAD/6_object_wrap/node-addon-api)**
|
|
|
|
|
- **[Factory of wrapped object](https://github.com/nodejs/node-addon-examples/tree/HEAD/7_factory_wrap/node-addon-api)**
|
|
|
|
|
- **[Passing wrapped object around](https://github.com/nodejs/node-addon-examples/tree/HEAD/8_passing_wrapped/node-addon-api)**
|
|
|
|
|
|
|
|
|
|
<a name="tests"></a>
|
|
|
|
|
|
|
|
|
|
### **Tests**
|
|
|
|
|
|
|
|
|
|
To run the **node-addon-api** tests do:
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
npm install
|
|
|
|
|
npm test
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
To avoid testing the deprecated portions of the API run
|
|
|
|
|
```
|
|
|
|
|
npm install
|
|
|
|
|
npm test --disable-deprecated
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
To run the tests targeting a specific version of Node-API run
|
|
|
|
|
```
|
|
|
|
|
npm install
|
|
|
|
|
export NAPI_VERSION=X
|
|
|
|
|
npm test --NAPI_VERSION=X
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
where X is the version of Node-API you want to target.
|
|
|
|
|
|
|
|
|
|
To run a specific unit test, filter conditions are available
|
|
|
|
|
|
|
|
|
|
**Example:**
|
|
|
|
|
compile and run only tests on objectwrap.cc and objectwrap.js
|
|
|
|
|
```
|
|
|
|
|
npm run unit --filter=objectwrap
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
Multiple unit tests cane be selected with wildcards
|
|
|
|
|
|
|
|
|
|
**Example:**
|
|
|
|
|
compile and run all test files ending with "reference" -> function_reference.cc, object_reference.cc, reference.cc
|
|
|
|
|
```
|
|
|
|
|
npm run unit --filter=*reference
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
Multiple filter conditions can be joined to broaden the test selection
|
|
|
|
|
|
|
|
|
|
**Example:**
|
|
|
|
|
compile and run all tests under folders threadsafe_function and typed_threadsafe_function and also the objectwrap.cc file
|
|
|
|
|
npm run unit --filter='*function objectwrap'
|
|
|
|
|
|
|
|
|
|
### **Debug**
|
|
|
|
|
|
|
|
|
|
To run the **node-addon-api** tests with `--debug` option:
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
npm run-script dev
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
If you want a faster build, you might use the following option:
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
npm run-script dev:incremental
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
Take a look and get inspired by our **[test suite](https://github.com/nodejs/node-addon-api/tree/HEAD/test)**
|
|
|
|
|
|
|
|
|
|
### **Benchmarks**
|
|
|
|
|
|
|
|
|
|
You can run the available benchmarks using the following command:
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
npm run-script benchmark
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
See [benchmark/README.md](benchmark/README.md) for more details about running and adding benchmarks.
|
|
|
|
|
|
|
|
|
|
<a name="resources"></a>
|
|
|
|
|
|
|
|
|
|
### **More resource and info about native Addons**
|
|
|
|
|
- **[C++ Addons](https://nodejs.org/dist/latest/docs/api/addons.html)**
|
|
|
|
|
- **[Node-API](https://nodejs.org/dist/latest/docs/api/n-api.html)**
|
|
|
|
|
- **[Node-API - Next Generation Node API for Native Modules](https://youtu.be/-Oniup60Afs)**
|
|
|
|
|
- **[How We Migrated Realm JavaScript From NAN to Node-API](https://developer.mongodb.com/article/realm-javascript-nan-to-n-api)**
|
|
|
|
|
|
|
|
|
|
As node-addon-api's core mission is to expose the plain C Node-API as C++
|
|
|
|
|
wrappers, tools that facilitate n-api/node-addon-api providing more
|
|
|
|
|
convenient patterns for developing a Node.js add-on with n-api/node-addon-api
|
|
|
|
|
can be published to NPM as standalone packages. It is also recommended to tag
|
|
|
|
|
such packages with `node-addon-api` to provide more visibility to the community.
|
|
|
|
|
|
|
|
|
|
Quick links to NPM searches: [keywords:node-addon-api](https://www.npmjs.com/search?q=keywords%3Anode-addon-api).
|
|
|
|
|
|
|
|
|
|
<a name="other-bindings"></a>
|
|
|
|
|
|
|
|
|
|
### **Other bindings**
|
|
|
|
|
|
|
|
|
|
- **[napi-rs](https://napi.rs)** - (`Rust`)
|
|
|
|
|
|
|
|
|
|
<a name="badges"></a>
|
|
|
|
|
|
|
|
|
|
### **Badges**
|
|
|
|
|
|
|
|
|
|
The use of badges is recommended to indicate the minimum version of Node-API
|
|
|
|
|
required for the module. This helps to determine which Node.js major versions are
|
|
|
|
|
supported. Addon maintainers can consult the [Node-API support matrix][] to determine
|
|
|
|
|
which Node.js versions provide a given Node-API version. The following badges are
|
|
|
|
|
available:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
## **Contributing**
|
|
|
|
|
|
|
|
|
|
We love contributions from the community to **node-addon-api**!
|
|
|
|
|
See [CONTRIBUTING.md](CONTRIBUTING.md) for more details on our philosophy around extending this module.
|
|
|
|
|
|
|
|
|
|
<a name="contributors"></a>
|
|
|
|
|
|
|
|
|
|
## Team members
|
|
|
|
|
|
|
|
|
|
### Active
|
|
|
|
|
| Name | GitHub Link |
|
|
|
|
|
| ------------------- | ----------------------------------------------------- |
|
|
|
|
|
| Anna Henningsen | [addaleax](https://github.com/addaleax) |
|
|
|
|
|
| Chengzhong Wu | [legendecas](https://github.com/legendecas) |
|
|
|
|
|
| Jack Xia | [JckXia](https://github.com/JckXia) |
|
|
|
|
|
| Kevin Eady | [KevinEady](https://github.com/KevinEady) |
|
|
|
|
|
| Michael Dawson | [mhdawson](https://github.com/mhdawson) |
|
|
|
|
|
| Nicola Del Gobbo | [NickNaso](https://github.com/NickNaso) |
|
|
|
|
|
| Vladimir Morozov | [vmoroz](https://github.com/vmoroz) |
|
|
|
|
|
|
|
|
|
|
### Emeritus
|
|
|
|
|
| Name | GitHub Link |
|
|
|
|
|
| ------------------- | ----------------------------------------------------- |
|
|
|
|
|
| Arunesh Chandra | [aruneshchandra](https://github.com/aruneshchandra) |
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| Benjamin Byholm | [kkoopa](https://github.com/kkoopa) |
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| Gabriel Schulhof | [gabrielschulhof](https://github.com/gabrielschulhof) |
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| Hitesh Kanwathirtha | [digitalinfinity](https://github.com/digitalinfinity) |
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| Jason Ginchereau | [jasongin](https://github.com/jasongin) |
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| Jim Schlight | [jschlight](https://github.com/jschlight) |
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| Sampson Gao | [sampsongao](https://github.com/sampsongao) |
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| Taylor Woll | [boingoing](https://github.com/boingoing) |
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<a name="license"></a>
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Licensed under [MIT](./LICENSE.md)
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[ABI stability guide]: https://nodejs.org/en/docs/guides/abi-stability/
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[Node-API support matrix]: https://nodejs.org/dist/latest/docs/api/n-api.html#n_api_n_api_version_matrix
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