Get iTwin iModels - iModels

REST API Overview

Reference

Changelog

iModels

Download API definition:

Get iTwin iModels

GET https://api.bentley.com/imodels/?iTwinId[&$skip][&$top][&$orderBy][&$search][&name][&state]

Retrieves a list of iModels belonging to the specified iTwin.

Notes

The Prefer header can be used to specify how much result metadata is desired by the client. The Prefer request header field is used to indicate that particular server behaviors are preferred by the client but are not required for successful completion of the request.

This operation supports "return=representation" and "return=minimal" preferences.

The "return=representation" preference indicates that the client prefers that the server include an entity representing the current state of the resource in the response to a successful request. The "return=minimal" preference indicates that the client wishes the server to return only a minimal response to a successful request. This is the default preference if Prefer header is not specified.

Authentication

Requires Authorization header with valid Bearer token for scope itwin-platform.

For more documentation on authorization and how to get access token visit OAUTH2 Authorization page.

Authorization

User must have imodels_webview permission assigned at the iModel level and at least imodels_webview permission assigned at the iTwin level. If permissions at the iModel level are not configured, then user must have imodels_webview permission assigned at the iTwin level.

Alternatively the user should be an Organization Administrator for the Organization that owns a given iTwin the iModel belongs to.

An Organization Administrator must have at least one of the following roles assigned in User Management: Account Administrator, Co-Administrator, or CONNECT Services Administrator. For more information about User Management please visit our Bentley Communities Licensing, Cloud, and Web Services wiki page.

Rate limits

All iTwin Platform API operations have a rate limit. For more documentation on that visit Rate limits and quotas page.

Request

Request parameters

iTwinId

query

Yes

Id of the iTwin.

$skip

query

The $skip query option requests the number of items in the queried collection that are to be skipped and not included in the result. E.g. to return items from the collection starting at the third place provide the following query: $skip=2.

$top

query

The $top query option requests the number of items in the queried collection to be included in the result. E.g. to return only first collection item provide the following query: $top=1. When $top parameter is not provided default is set to 100. $top value cannot exceed 1000.

$orderBy

query

The $orderBy query option allows clients to request ascending using 'asc' or descending using 'desc' order of the returned collection by one of the item properties. iModels can be ordered by 'name' and 'createdDateTime' properties. When neither 'asc' or 'desc' keyword is specified the collection is sorted in ascending order. To sort the collection in descending order provide 'desc' keyword e.g.: $orderBy=name desc

$search

query

The $search query option allows users to filter iModels whose name or description property contains the search string. E.g. to return iModels whose name or description contains 'Sun City', provide the following query: $search=Sun%20City. This parameter cannot be used at the same time as the name parameter. Valid values for this parameter are non-empty strings that are not longer than 255 characters.

name

query

The name query option allows users to filter iModels by their name property. E.g. to return iModels that have a name equal to 'Sun City Renewable-energy Plant' provide the following query: name=Sun%20City%20Renewable-energy%20Plant. Valid values for this parameter follow the same requirements as for iModel creation - strings should be not empty, consist not only of whitespace and not exceed 255 characters. This query option uses exact matching.

state

query

The state query option allows users to filter iModels by their state property. To return iModels that are initialized, provide initialized keyword e.g.: state=initialized. Valid values for this parameter are 'initialized' or 'notInitialized'.

Request headers

Authorization

Yes

OAuth access token with itwin-platform scope

Yes

Setting to application/vnd.bentley.itwin-platform.v2+json is recommended.

Prefer

Indicates a level of details in the response. This operation supports 'return=representation' and 'return=minimal' preferences.

Response

Response 200 OK

json

{
    "iModels": [{
            "id": "5e19bee0-3aea-4355-a9f0-c6df9989ee7d",
            "displayName": "Sun City Renewable-energy Plant",
            "dataCenterLocation": "East US"
        },
        {
            "id": "e5692781-32b8-473d-8752-908468f46926",
            "displayName": "Power Town Processing Plant",
            "dataCenterLocation": "East US"
        }
    ],
    "_links": {
        "self": {
            "href": "https://api.bentley.com/imodels?iTwinId=ad0ba809-9241-48ad-9eb0-c8038c1a1d51&$skip=0&$top=100"
        },
        "prev": {
            "href": "https://api.bentley.com/imodels?iTwinId=ad0ba809-9241-48ad-9eb0-c8038c1a1d51&$skip=0&$top=100"
        },
        "next": {
            "href": "https://api.bentley.com/imodels?iTwinId=ad0ba809-9241-48ad-9eb0-c8038c1a1d51&$skip=100&$top=100"
        }
    }
}

Response 401 Unauthorized

This response indicates that request lacks valid authentication credentials. Access token might not been provided, issued by the wrong issuer, does not have required scopes or request headers were malformed.

json

{
    "error": {
        "code": "HeaderNotFound",
        "message": "Header Authorization was not found in the request. Access denied."
    }
}

Response 404 Not Found

Specified iTwin was not found.

json

{
    "error": {
        "code": "iTwinNotFound",
        "message": "Requested iTwin is not available."
    }
}

Response 422 Unprocessable Entity

The 422 (Unprocessable Entity) status code indicates that the request cannot be processed by the server due to a client error (e.g. malformed request syntax)

json

{
    "error": {
        "code": "InvalidiModelsRequest",
        "message": "Cannot get iModels.",
        "details": [{
            "code": "InvalidValue",
            "message": "'abc' is not a valid 'iTwinId' value.",
            "target": "iTwinId"
        }]
    }
}

Response 429 Too many requests

This response indicates that the user has sent too many requests in a given amount of time.

json

{
    "error": {
        "code": "TooManyRequests",
        "message": "More requests were received than the subscription rate-limit allows."
    }
}

Response headers

retry-after

The number of requests exceeds the rate-limit for the client subscription.

Definitions

iModel (summary)

Summarized representation of the iModel.

TableSchema

String

Id of the iModel

displayName

String

Display name of the iModel. Corresponds to Name property.

dataCenterLocation

String

The data center where the data for this iModel is persisted. It will be the same as the iTwin data center, unless that data center is not supported or was not supported when the first iTwin iModel was created. All iTwin iModels are in the same region. Default is East US. Possible Values: Australia East, Canada Central, East US, Japan East, North Europe, South Africa North, Southeast Asia, UK South.

iModel

Full representation of the iModel.

TableSchema

String

Id of the iModel

displayName

String

Display name of the iModel. Corresponds to Name property.

dataCenterLocation

String

The data center where the data for this iModel is persisted. It will be the same as the iTwin data center, unless that data center is not supported or was not supported when the first iTwin iModel was created. All iTwin iModels are in the same region. Default is East US. Possible Values: Australia East, Canada Central, East US, Japan East, North Europe, South Africa North, Southeast Asia, UK South.

name

String

Name of the iModel.

description

String,null

Description of the iModel.

createdDateTime

String

Date when the iModel was created.

iTwinId

String

Id of the iTwin that iModel belongs to.

isSecured

Boolean

Indicates if permissions at the iModel level are configured. true - iModel level permissions are configured. Permissions at iModel level override the iTwin level permissions. false - iModel permissions are not configured and the iTwin level permissions are applied.

extent

Extent

The maximum rectangular area on the Earth which encloses the iModel. The maximum extent is used to help keep your iModel clean. When new elements are imported, those outside the extent will be flagged for further processing. This extent will also help to zoom to the area of interest in web viewers.

state

String

Indicates the state of the iModel. Possible values: 'initialized', 'notInitialized'.

_links

iModelLinks

Contains the hyperlinks to the related data of the iModel.

iModels (prefer return=minimal)

List of iModels.

TableSchema

iModels

iModelSummary[]

List of iModels.

_links

PagingLinks

Contains the hyperlinks to the previous and next pages of results.

iModels (prefer return=representation)

List of iModels.

TableSchema

iModels

iModel[]

List of iModels.

_links

PagingLinks

Contains the hyperlinks to the previous and next pages of results.

iModel Links

Hyperlinks to related data which complements this entity.

TableSchema

creator

Link

Information about the creator of the entity.

changesets

Link

Link to retrieve Changesets of the iModel.

namedVersions

Link

Link to retrieve Named Versions of the iModel.

Link

Hyperlink container.

TableSchema

href

String

Hyperlink to the specific entity.

Extent

A rectangular area on the Earth. A rectangular area is defined by two latitudes and two longitudes that represent the four sides of a rectangular area on the Earth.

TableSchema

southWest

Point

South Latitude, West Longitude.

northEast

Point

North Latitude, East Longitude.

Point

A point on the Earth specified by a latitude and longitude.

TableSchema

latitude

Double

Latitude. Latitude ranges between -90 and 90 degrees, inclusive.

longitude

Double

Longitude. Longitude ranges between -180 and 180 degrees, inclusive.

Paging Links

URLs for redoing the current request, getting to the previous or next page of results, if applicable.

TableSchema

self

Link

URL for redoing the current request.

Link

URL for getting the previous page of results.

Error

Contains error information.

TableSchema

code

String

One of a server-defined set of error codes.

message

String

A human-readable representation of the error.

target

String

The target of the error.

Error Response

Gives details for an error that occurred while handling the request. Note that clients MUST NOT assume that every failed request will produce an object of this schema, or that all of the properties in the response will be non-null, as the error may have prevented this response from being constructed.

TableSchema

error

Error

Error information.