Web Service Method: Add a New Attribute Property to a Resource

19/03/2026

Description
Use this API call to add a new attribute property to a resource.

URL: /PoolParty/api/editor/{project}/addAttribute

Supported Methods
POST

application/json

Parameter	Comment	Type	Required
editor	The editor's URI.	IRI JSON representation of an IRI object.	true

Parameter

Comment

Type

Required

editor

The editor's URI.

IRI

JSON representation of an IRI object.

true

Attribute	Type	Comment
`uri`	String	The string value of the URI. URIs must contain a colon ':' and must not contain any whitespaces.

{
  "uri" : "https://semantic-web.com/api/uri#5233"
}

Attribute	Type	Comment
context	String	URI of the mutable graph in which the source exist.
predicate	String	URI of attribute property
subject	String	URI of source
type	String	The data type of the value that should be added. LITERAL, BOOLEAN, DATE, URI, INTEGER, LONG, FLOAT, DATETIME
value	CustomValue	Attribute value that should be added.

{
  "predicate" : "some predicate",
  "subject" : "https://semantic-web.com/api/subject#32540",
  "context" : "some context",
  "type" : "https://semantic-web.com/api/type#10948",
  "value" : {
    "language" : "en-us",
    "label" : "some label"
  }
}

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