Items - Get Ontology Definition

Service:: Ontology

API Version:: v1

Returns the specified Ontology public definition.

Note

Ontology item is currently in Preview (learn more).

This API supports long running operations (LRO).

When you get an ontology public definition, the sensitivity label is not a part of the definition.

Permissions

The caller must have read and write permissions for the ontology.

Required Delegated Scopes

Item.ReadWrite.All

Limitations

This API is blocked for an ontology with an encrypted sensitivity label.

Microsoft Entra supported identities

This API supports the Microsoft identities listed in this section.

Identity	Support
User	Yes
Service principal and Managed identities	Yes

Interface

POST https://api.fabric.microsoft.com/v1/workspaces/{workspaceId}/ontologies/{ontologyId}/getDefinition

With optional parameters:

POST https://api.fabric.microsoft.com/v1/workspaces/{workspaceId}/ontologies/{ontologyId}/getDefinition?format={format}

URI Parameters

Name	In	Required	Type	Description
ontologyId	path	True	string (uuid)	The ontology ID.
workspaceId	path	True	string (uuid)	The workspace ID.
format	query		string	The format of the Ontology public definition.

Responses

Name	Type	Description
200 OK	OntologyDefinitionResponse	Request completed successfully.
202 Accepted		Request accepted. Retrieving the definition is in progress. Headers Location: string x-ms-operation-id: string Retry-After: integer
429 Too Many Requests	ErrorResponse	The service rate limit was exceeded. The server returns a `Retry-After` header indicating, in seconds, how long the client must wait before sending additional requests. Headers Retry-After: integer
Other Status Codes	ErrorResponse	Common error codes: OperationNotSupportedForItem - Operation not supported for requested item.

Examples

Get a ontology definition example

Sample request

HTTP

POST https://api.fabric.microsoft.com/v1/workspaces/cfafbeb1-8037-4d0c-896e-a46fb27ff229/ontologies/5b218778-e7a5-4d73-8187-f10824047715/getDefinition

Sample response

Status code:: 200

{
  "definition": {
    "parts": [
      {
        "path": "definition.json",
        "payload": "e30=",
        "payloadType": "InlineBase64"
      },
      {
        "path": "EntityTypes/8813598896083/definition.json",
        "payload": "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",
        "payloadType": "InlineBase64"
      },
      {
        "path": ".platform",
        "payload": "ZG90UGxhdGZvcm1CYXNlNjRTdHJpbmc=",
        "payloadType": "InlineBase64"
      }
    ]
  }
}

Status code:: 202

Location: https://api.fabric.microsoft.com/v1/operations/0acd697c-1550-43cd-b998-91bfbfbd47c6
x-ms-operation-id: 0acd697c-1550-43cd-b998-91bfbfbd47c6
Retry-After: 30

Definitions

Name	Description
ErrorRelatedResource	The error related resource details object.
ErrorResponse	The error response.
ErrorResponseDetails	The error response details.
OntologyDefinition	Ontology public definition object. Refer to this article for more details on the structure of the Ontology definition.
OntologyDefinitionPart	Ontology definition part object.
OntologyDefinitionResponse	Ontology public definition response.
PayloadType	The type of the definition part payload. Additional payload types may be added over time.

ErrorRelatedResource

Object

The error related resource details object.

Name	Type	Description
resourceId	string	The resource ID that's involved in the error.
resourceType	string	The type of the resource that's involved in the error.

ErrorResponse

Object

The error response.

Name	Type	Description
errorCode	string	A specific identifier that provides information about an error condition, allowing for standardized communication between our service and its users.
isRetriable	boolean	When true, the request can be retried. Use the `Retry-After` response header to determine the delay, if available.
message	string	A human readable representation of the error.
moreDetails	ErrorResponseDetails[]	List of additional error details.
relatedResource	ErrorRelatedResource	The error related resource details.
requestId	string (uuid)	ID of the request associated with the error.

ErrorResponseDetails

Object

The error response details.

Name	Type	Description
errorCode	string	A specific identifier that provides information about an error condition, allowing for standardized communication between our service and its users.
message	string	A human readable representation of the error.
relatedResource	ErrorRelatedResource	The error related resource details.

OntologyDefinition

Object

Ontology public definition object. Refer to this article for more details on the structure of the Ontology definition.

Name	Type	Description
format	string	The format of the Ontology definition.
parts	OntologyDefinitionPart[]	A list of definition parts.

OntologyDefinitionPart

Object

Ontology definition part object.

Name	Type	Description
path	string	The ontology part path.
payload	string	The ontology part payload.
payloadType	PayloadType	The payload type.

OntologyDefinitionResponse

Object

Ontology public definition response.

Name	Type	Description
definition	OntologyDefinition	Ontology public definition object. Refer to this article for more details on the structure of the Ontology definition.

PayloadType

Enumeration

The type of the definition part payload. Additional payload types may be added over time.

Value	Description
InlineBase64	Inline Base 64.