content-type

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[![NPM Downloads][npm-downloads-image]][npm-url]
[![Node.js Version][node-image]][node-url]
[![Build Status][ci-image]][ci-url]
[![Coverage Status][coveralls-image]][coveralls-url]

Create and parse HTTP Content-Type header according to RFC 7231

Installation

``sh
$ npm install content-type
`

API

`js
var contentType = require('content-type')
`

$3

`js
var obj = contentType.parse('image/svg+xml; charset=utf-8')
`

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'):

- type: The media type (the type and subtype, always lower case).
Example: 'image/svg+xml'

- parameters: An object of the parameters in the media type (name of parameter
always lower case). Example: {charset: 'utf-8'}

Throws a TypeError if the string is missing or invalid.

$3

`js
var obj = contentType.parse(req)
`

Parse the Content-Type header from the given req. Short-cut for
contentType.parse(req.headers['content-type']).

Throws a TypeError if the Content-Type header is missing or invalid.

$3

`js
var obj = contentType.parse(res)
`

Parse the Content-Type header set on the given res. Short-cut for
contentType.parse(res.getHeader('content-type')).

Throws a TypeError if the Content-Type header is missing or invalid.

$3

`js
var str = contentType.format({
type: 'image/svg+xml',
parameters: { charset: 'utf-8' }
})
`

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'):

- type: The media type (will be lower-cased). Example: 'image/svg+xml'

- parameters: An object of the parameters in the media type (name of the
parameter will be lower-cased). Example: {charset: 'utf-8'}

Throws a TypeError` if the object contains an invalid type or parameter names.

License

MIT

[ci-image]: https://badgen.net/github/checks/jshttp/content-type/master?label=ci
[ci-url]: https://github.com/jshttp/content-type/actions/workflows/ci.yml
[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/content-type/master
[coveralls-url]: https://coveralls.io/r/jshttp/content-type?branch=master
[node-image]: https://badgen.net/npm/node/content-type
[node-url]: https://nodejs.org/en/download
[npm-downloads-image]: https://badgen.net/npm/dm/content-type
[npm-url]: https://npmjs.org/package/content-type
[npm-version-image]: https://badgen.net/npm/v/content-type