Models - DigitalTwinModels List

Service:

Azure Digital Twins

API Version:

2023-10-31

Retrieves model metadata and, optionally, model definitions. Status codes:

• 200 OK
• 400 Bad Request
  • InvalidArgument - The model id is invalid.
  • LimitExceeded - The maximum number of model ids allowed in 'dependenciesFor' has been reached.
• 404 Not Found
  • ModelNotFound - The model was not found.

GET https://digitaltwins-hostname/models?api-version=2023-10-31

With optional parameters:

GET https://digitaltwins-hostname/models?dependenciesFor={dependenciesFor}&includeModelDefinition={includeModelDefinition}&api-version=2023-10-31

URI Parameters

Name	In	Required	Type	Description
api-version	query	True	string	The requested API version.
dependenciesFor	query		string[]	If specified, only return the set of the specified models along with their dependencies. If omitted, all models are retrieved.
includeModelDefinition	query		boolean	When true the model definition will be returned as part of the result.

Request Header

Name	Required	Type	Description
max-items-per-page		integer	The maximum number of items to retrieve per request. The server may choose to return less than the requested number.
traceparent		string	Identifies the request in a distributed tracing system.
tracestate		string	Provides vendor-specific trace identification information and is a companion to traceparent.

Responses

Name	Type	Description
200 OK	PagedDigitalTwinsModelDataCollection	Success
Other Status Codes	ErrorResponse	Default response. Headers x-ms-error-code: string

Security

oauth2

Type: oauth2
Flow: implicit
Authorization URL: https://login.microsoftonline.com/common/oauth2/authorize?resource=0b07f429-9f4b-4714-9392-cc5e8e80c8b0

Examples

List models

List models (include dependencies and definitions)

List models

Sample Request

HTTP

GET https://digitaltwins-hostname/models?api-version=2023-10-31

Sample Response

Status code:

200

{
  "value": [
    {
      "id": "dtmi:com:example:Sample;1",
      "uploadTime": "2022-02-28T00:30:00.1234567Z",
      "decommissioned": false
    },
    {
      "id": "dtmi:com:example:SampleDeviceModel;1",
      "displayName": {
        "en": "My Device Model"
      },
      "uploadTime": "2022-02-27T00:30:00.1234567Z",
      "decommissioned": false
    },
    {
      "id": "dtmi:com:example:AnotherSample;1",
      "displayName": {
        "en": "My Sample"
      },
      "uploadTime": "2022-02-26T00:30:00.1234567Z",
      "decommissioned": false
    }
  ],
  "nextLink": "url-to-next-page"
}

List models (include dependencies and definitions)

Sample Request

HTTP

GET https://digitaltwins-hostname/models?dependenciesFor=dtmi:com:example:SampleDeviceModel;1&includeModelDefinition=True&api-version=2023-10-31

Sample Response

Status code:

200

{
  "value": [
    {
      "id": "dtmi:com:example:Sample;1",
      "uploadTime": "2022-02-28T00:30:00.1234567Z",
      "decommissioned": false,
      "model": {
        "@id": "dtmi:com:example:Sample;1",
        "@type": "Interface",
        "contents": [
          {
            "@type": "Property",
            "name": "name",
            "displayName": "Sample instance name",
            "schema": "string"
          },
          {
            "@type": "Property",
            "name": "temp",
            "displayName": "Sample instance temperature",
            "schema": "integer"
          },
          {
            "@type": "Property",
            "name": "comfortIndex",
            "displayName": "Sample instance comfort index",
            "schema": "integer"
          }
        ],
        "@context": "dtmi:dtdl:context;2"
      }
    },
    {
      "id": "dtmi:com:example:SampleDeviceModel;1",
      "displayName": {
        "en": "My Device Model"
      },
      "uploadTime": "2022-02-28T00:30:00.1234567Z",
      "decommissioned": false,
      "model": {
        "@id": "dtmi:com:example:SampleDeviceModel;1",
        "@type": "Interface",
        "displayName": "My Device Model",
        "contents": [
          {
            "@type": "Component",
            "name": "Sample",
            "schema": "dtmi:com:example:Sample;1"
          }
        ],
        "@context": "dtmi:dtdl:context;2"
      }
    }
  ],
  "nextLink": "url-to-next-page"
}

Definitions

Name	Description
DigitalTwinsModelData	A model definition and metadata for that model.
Error	Error definition.
ErrorResponse	Error response.
InnerError	A more specific error description than was provided by the containing error.
PagedDigitalTwinsModelDataCollection	A collection of DigitalTwinsModelData objects.

DigitalTwinsModelData

A model definition and metadata for that model.

Name	Type	Default Value	Description
decommissioned	boolean	False	Indicates if the model is decommissioned. Decommissioned models cannot be referenced by newly created digital twins.
description	object		A language map that contains the localized descriptions as specified in the model definition.
displayName	object		A language map that contains the localized display names as specified in the model definition.
id	string		The id of the model as specified in the model definition.
model	object		The model definition.
uploadTime	string		The time the model was uploaded to the service.

Error

Error definition.

Name	Type	Description
code	string	Service specific error code which serves as the substatus for the HTTP error code.
details	Error[]	Internal error details.
innererror	InnerError	An object containing more specific information than the current object about the error.
message	string	A human-readable representation of the error.

ErrorResponse

Error response.

Name	Type	Description
error	Error	The error details.

InnerError

A more specific error description than was provided by the containing error.

Name	Type	Description
code	string	A more specific error code than was provided by the containing error.
innererror	InnerError	An object containing more specific information than the current object about the error.

PagedDigitalTwinsModelDataCollection

A collection of DigitalTwinsModelData objects.

Name	Type	Description
nextLink	string	A URI to retrieve the next page of objects.
value	DigitalTwinsModelData[]	The DigitalTwinsModelData objects.