Web Service Method: Request the History of Concepts

18/03/2026

Description
Returns history events of a specific concept or a list of concepts.

Note

History events are triggered when concepts are edited. See detailed description here: PoolParty History

URL: /PoolParty/api/history/{project}/concepts

Supported Methods
GET

Path Variables

Variable	Comment
`{project}`	The UUID of the project to be used

HTTP Parameters

Parameter	Comment	Type	Required
concepts	The concept or list of concepts for which history information should be retrieved. Learn more about the options here: Using a List of Request Parameters	Array of Strings	true
fromTime	Start point of the requested time frame *	String	false
toTime	End point of the requested time frame *	String	false
label	Filter by a label	String	false
users	Filter by URI of the user/users. Learn more about the options here:Using a List of Request Parameters	Array of Strings	false
events	Filter by event type/event types Possible values: `resourceChangeAddition, resourceChangeRemoval, resourceChangeUpdate, addRelation, removeRelation, addLiteral, removeLiteral, updateLiteral, addCollectionMember, removeCollectionMember, createCollection, deleteCollection, importConcept, resourceChangeAddition, addCustomAttributeLiteral, removeCustomAttributeLiteral, updateCustomAttributeLiteral, addCustomRelation, removeCustomRelation, addCustomClass, removeCustomClass, addLodLink, removeLodLink, addProjectLinking, removeProjectLinking` Please refer to this page want to learn more about the options: Using a List of Request Parameters	Array of Strings	false

Note

*) ISO-8601 standard dateTime format (yyyy-MM-dd'T'HH:mm:ss) is supported e.g. 2016-03-25T15:06:47. In addition you can use format dd.MM.yyyy (e.g. 25.07.2016) or for higher granularity you can also choose dd.MM.yyyy'T'HH.mm.ss (e.g. 25.07.2016T17:29:20).

Response

Array of history events.

Attribute	Type	Comment
`uri`	String	URI of the history event
`creatorName`	String	Editor who is responsible for history event
`createdDate`	String	Date when history event was created
`subjectOfChange`	String	URL of the concept that was changed
`changeType`	String	Type of change like: REMOVAL, ADDITION
`collectionRelation`	JsonRelation
`customType`	String
`historyEvent`	String
`member`	JsonRelation
`newUri`	String
`newValue`	LanguageLiteral
`noteTitle`	String
`oldUri`	String
`oldValue`	LanguageLiteral
`predicate`	String
`relationTarget`	JsonRelation
`workflowStatus`	String

JSON Relation

Attribute	Type	Comment
`label`	String	Label of the related resource
`uri`	String	URI to the related resource

Language Literal

Object representing a RDF literal in a certain language.

Attribute	Type	Comment
`label`	String	The label String
`language`	String	Language of the literal

Request Pattern

{{url}}/PoolParty/api/history/{{projectId}}/concepts?concepts={{target-concept}}

Example Request - Filtering History of One Concept by One User

{{url}}/PoolParty/api/history/{{projectId}}/concepts?concepts=http://internal.semantic-web.at/infra/product/789aa99a-7b8f-4f30-988f-58bb10eb80d3&users=https://preview.poolparty.biz/user/nagyh

Example Response Snippet

[
 {
 "uri": "historyEvent:cc716fb6-8809-483d-b6ab-08133b8fdc88",
 "creatorName": {
 "uri": "https://preview.poolparty.biz/user/nagyh"
 },
 "createdDate": "2016-02-25T15:54:53",
 "subjectOfChange": "http://internal.semantic-web.at/infra/product/789aa99a-7b8f-4f30-988f-58bb10eb80d3",
 "changeType": "ADDITION",
...
 
 {
 "uri": "historyEvent:c55e2a6d-76a4-449f-8f06-396e7ab8cdef",
 "creatorName": {
 "uri": "https://preview.poolparty.biz/user/nagyh"
 },
 "createdDate": "2016-02-25T15:53:39",
 "subjectOfChange": "http://internal.semantic-web.at/infra/product/789aa99a-7b8f-4f30-988f-58bb10eb80d3",
 "changeType": "ADDITION",
 "historyEvent": "http://schema.semantic-web.at/ppt/history#ResourceChangeHistoryEvent"
 }
]

Example Request - Filtering History of One Concept by Time Frame

{{url}}/PoolParty/api/history/{{projectId}}/concepts?concepts=http://internal.semantic-web.at/infra/product/789aa99a-7b8f-4f30-988f-58bb10eb80d3&fromTime=2016-02-26T15:06:47&toTime=2016-03-25T15:06:47

Example Response Snippet

 [
 {
 "uri": "historyEvent:cb63773c-a9c7-470b-9edb-48f79dd44c45",
 "creatorName": {
 "uri": "https://preview.poolparty.biz/user/muecksteinm"
 },
 "createdDate": "2016-03-25T15:06:46",
 "subjectOfChange": "http://internal.semantic-web.at/infra/product/789aa99a-7b8f-4f30-988f-58bb10eb80d3",
 "changeType": "ADDITION",
 "historyEvent": "http://schema.semantic-web.at/ppt/history#CustomRelationHistoryEvent",
 
 ...
"createdDate": "2016-03-25T11:34:23",
 "subjectOfChange": "http://internal.semantic-web.at/infra/product/789aa99a-7b8f-4f30-988f-58bb10eb80d3",
 "changeType": "REMOVAL",
 "historyEvent": "http://schema.semantic-web.at/ppt/history#CustomTypeAddRemoveHistoryEvent",
 "predicate": "http://www.w3.org/1999/02/22-rdf-syntax-ns#type",
 "customType": "https://schema.org/Thing"
 }
]

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