npm package: @stdlib/napi-export
Description: C utilities for registering Node-API modules.
Author: The Stdlib Authors
Latest version: 0.3.1

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    About stdlib...
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  <p>We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.</p>
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# Node-API Exports

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> C utilities for registering Node-API modules.

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<section class="intro">

</section>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/napi-export
```

</section>

<section class="usage">

## Usage

```javascript
var headerDir = require( '@stdlib/napi-export' );
```

#### headerDir

Absolute file path for the directory containing header files for C APIs.

```javascript
var dir = headerDir;
// returns <string>
```

</section>

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</section>

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<section class="examples">

## Examples

```javascript
var headerDir = require( '@stdlib/napi-export' );

console.log( headerDir );
// => <string>
```

</section>

<!-- /.examples -->

<!-- C interface documentation. -->

* * *

<section class="c">

## C APIs

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<section class="intro">

</section>

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<!-- C usage documentation. -->

<section class="usage">

### Usage

```c
#include "stdlib/napi/export.h"
```

#### STDLIB_NAPI_MODULE_EXPORT_FCN( name )

Macro for registering a Node-API module which exports a function.

```c
#include <node_api.h>

// ...

static napi_value addon( napi_env env, napi_callback_info info ) {
    // ...
}

// ...

// Register a Node-API module:
STDLIB_NAPI_MODULE_EXPORT_FCN( addon )
```

The macro expects the following arguments:

-   **name**: name of the C function to export.

When used, this macro should be used **instead of** `NAPI_MODULE`. The macro includes `NAPI_MODULE`, thus ensuring Node-API module registration.

#### STDLIB_NAPI_MODULE_EXPORT_FCN_WITH_METHOD( fcn_name, prop_name, fcn_method_name )

Macro for registering a Node-API module which exports a function having a method.

```c
#include <node_api.h>

// ...

static napi_value addon( napi_env env, napi_callback_info info ) {
    // ...
}

static napi_value addon_method( napi_env env, napi_callback_info info ) {
    // ...
}

// ...

// Register a Node-API module:
STDLIB_NAPI_MODULE_EXPORT_FCN_WITH_METHOD( addon, "foo", addon_method )
```

The macro expects the following arguments:

-   **fcn_name**: name of the C function to export.
-   **prop_name**: property name.
-   **fcn_method_name**: name of the C function to export as a method.

When used, this macro should be used **instead of** `NAPI_MODULE`. The macro includes `NAPI_MODULE`, thus ensuring Node-API module registration.

</section>

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<section class="notes">

</section>

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<section class="examples">

</section>

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</section>

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<section class="related">

</section>

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<section class="main-repo" >

* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

</section>

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[npm-image]: http://img.shields.io/npm/v/@stdlib/napi-export.svg
[npm-url]: https://npmjs.org/package/@stdlib/napi-export

[test-image]: https://github.com/stdlib-js/napi-export/actions/workflows/test.yml/badge.svg?branch=v0.3.1
[test-url]: https://github.com/stdlib-js/napi-export/actions/workflows/test.yml?query=branch:v0.3.1

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/napi-export/main.svg
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