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72 lines
2.5 KiB
Plaintext
72 lines
2.5 KiB
Plaintext
# content-type
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[![NPM version][npm-image]][npm-url]
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[![NPM downloads][downloads-image]][downloads-url]
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[![Build status][build-image]][build-url]
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[![Build coverage][coverage-image]][coverage-url]
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[![License][license-image]][license-url]
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Create and parse HTTP `Content-Type` header.
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## Installation
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```sh
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npm install content-type
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```
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## API
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```js
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const contentType = require("content-type");
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```
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### contentType.parse(string, options?)
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```js
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const obj = contentType.parse("image/svg+xml; charset=utf-8");
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```
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Parse a `Content-Type` header. This will return an object with the following properties (examples are shown for the string `'image/svg+xml; charset=utf-8'`):
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- `type`: The media type. Example: `'image/svg+xml'`.
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- `parameters`: An object of the parameters in the media type (parameter name is always lower case). Example: `{charset: 'utf-8'}`.
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The parser is lenient and does not error. You should validate `type` and `parameters` before trusting them.
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#### Options
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- `parameters` (default: `true`): Set to `false` to skip parameters.
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- `comma` (default: `false`): Set to `true` to stop on a comma. This can be used to parse the media range in an `Accept` header.
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- `start` (default: `0`): Set index to start parsing from.
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### contentType.format(obj)
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```js
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const str = contentType.format({
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type: "image/svg+xml",
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parameters: { charset: "utf-8" },
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});
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```
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Format an object into a `Content-Type` header. This will return a string of the content type for the given object with the following properties (examples are shown that produce the string `'image/svg+xml; charset=utf-8'`):
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- `type`: The media type. Example: `'image/svg+xml'`.
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- `parameters`: An optional object of the parameters in the media type. Example: `{charset: 'utf-8'}`.
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Throws a `TypeError` if the object contains an invalid type or parameter names.
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## License
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[MIT](LICENSE)
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[npm-image]: https://img.shields.io/npm/v/content-type
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[npm-url]: https://npmjs.org/package/content-type
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[downloads-image]: https://img.shields.io/npm/dm/content-type
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[downloads-url]: https://npmjs.org/package/content-type
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[build-image]: https://img.shields.io/github/actions/workflow/status/jshttp/content-type/ci.yml?branch=master
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[build-url]: https://github.com/jshttp/content-type/actions/workflows/ci.yml?query=branch%3Amaster
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[coverage-image]: https://img.shields.io/codecov/c/gh/jshttp/content-type
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[coverage-url]: https://codecov.io/gh/jshttp/content-type
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[license-image]: http://img.shields.io/npm/l/content-type.svg?style=flat
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[license-url]: LICENSE
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