Link

Link

A link element represents an action that can be performed against a resource, or a related resource.

The URI for the action or relation is given by the @href property. The relationship between the linked resource and the current resource is given by the @rel property.

Optional @title, @type and @description properties may give further information about the linked resource.

The values of the @rel property will depend on the object which contains the link. See, for example, Actor#Link_Rel_Values

Example

<link href="http://example.org" rel="self" />

Properties

Name	Description	Usage
@href	A uri pointing to the linked resource	Required
@rel	A uri enumeration describing the relationship between this link and its containing resource	Required
@type	The content type of the linked resource	Optional
@title	The title of the linked resource	Optional
@description	The description of the linked resource	Optional

The @type attribute may refer either to

• the media-type that is expected in the body of request (eg. the @type attribute of a Folder#Syntax folder create link).
• or the media-type that is the response to a GET request (eg. the @type attribute of a Actor actor avatar link).

Schema

start = link

link = element link { 

	attribute href { xsd:anyURI },
	attribute rel { xsd:anyURI },
	attribute type {xsd:string}?,
	attribute title { xsd:string }?,
	attribute description { xsd:string }?,
	attribute count { xsd:string }?
}

Header

Links can also be present as HTTP headers. The format for these is </resource/url>;rel="rel_value". Link headers are specified in RFC 5588

Examples

This example shows a response containing a link header for a parent folder.

HTTP/1.1 200 OK
Link: </folders/123>;rel="parent"