48 lines
2.4 KiB
Markdown
48 lines
2.4 KiB
Markdown
# napi-build-utils
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[](https://www.npmjs.com/package/napi-build-utils)
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[](https://travis-ci.org/inspiredware/napi-build-utils)
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[](http://standardjs.com/)
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[](https://opensource.org/licenses/MIT)
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A set of utilities to assist developers of tools that build [N-API](https://nodejs.org/api/n-api.html#n_api_n_api) native add-ons.
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## Background
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This module is targeted to developers creating tools that build N-API native add-ons.
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It implements a set of functions that aid in determining the N-API version supported by the currently running Node instance and the set of N-API versions against which the N-API native add-on is designed to be built. Other functions determine whether a particular N-API version can be built and can issue console warnings for unsupported N-API versions.
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Unlike the modules this code is designed to facilitate building, this module is written entirely in JavaScript.
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## Quick start
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```bash
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$ npm install napi-build-utils
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```
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The module exports a set of functions documented [here](./index.md). For example:
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```javascript
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var napiBuildUtils = require('napi-build-utils');
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var napiVersion = napiBuildUtils.getNapiVersion(); // N-API version supported by Node, or undefined.
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```
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## Declaring supported N-API versions
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Native modules that are designed to work with [N-API](https://nodejs.org/api/n-api.html#n_api_n_api) must explicitly declare the N-API version(s) against which they are coded to build. This is accomplished by including a `binary.napi_versions` property in the module's `package.json` file. For example:
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```json
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"binary": {
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"napi_versions": [2,3]
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}
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```
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In the absence of a need to compile against a specific N-API version, the value `3` is a good choice as this is the N-API version that was supported when N-API left experimental status.
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Modules that are built against a specific N-API version will continue to operate indefinitely, even as later versions of N-API are introduced.
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## Support
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If you run into problems or limitations, please file an issue and we'll take a look. Pull requests are also welcome.
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