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content-type rewrite in TypeScript and ESM.

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

pnpm i @tinyhttp/content-type

import { parse, format } from '@tinyhttp/content-type'

const obj = 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.

const 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.

const 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.

const 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.