JarCastingcontent-type
Create and parse HTTP Content-Type header according to RFC 7231
Installation
$ npm install content-type
API
var contentType = require('content-type')
contentType.parse(string)
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.
contentType.parse(req)
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.
contentType.parse(res)
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.
contentType.format(obj)
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.
