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Create and parse HTTP Content-Type header according to RFC 7231
$ npm install content-type
var contentType = require('content-type')
var obj = contentType.parse('image/svg+xml; charset=utf-8')
Parse a content type string. 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.
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.
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.
var str = contentType.format({type: 'image/svg+xml'})
Format an object into a content type string. 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.