Call API Get iTwin iModels

[Paolo-lab]

hello everyone

it's been a few days that my web app can no longer find the models related to my project

While the call for projects works correctly
https://api.bentley.com/itwins/?subClass[&status][&type][&number][&displayName][&parentId][&iTwinAccountId][&$search][&$top][&$skip][&includeInactive]

The call for models related to projects returns 404 - not found
https://api.bentley.com/imodels/?iTwinId[&$skip][&$top][&$orderBy][&$search][&name][&state]

I use a c# back-end application to connect to the data for projects and models,

I have obviously done some tests on
https://developer.bentley.com/apis/imodels-v2/operations/get-itwin-imodels/
and it works correctly

I noticed in my application that the roles have been changed and I would not want this whole problem to be related to this

Thanks for the precious help

[austeja-bentley]

hello,
issues with calling https://api.bentley.com/imodels might be related to the fact that we disabled the deprecated v1 version recently. What accept header value are you sending with your requests? The value should be set to application/vnd.bentley.itwin-platform.v2+json.

[austeja-bentley]

yes, this looks correct. Could you provide the iTwin id for which you received 404 response? X-Correlation-id header value from such response would also be useful. Do you receive 404 consistently for this request, or are there particular iTwin ids for which you get the 404 response?

[Paolo-lab]

Hi , yes this is iTwin id 'a2a4966d-28e6-4c15-b5ee-8247a7933055'

really thank you

[Paolo-lab]

Hi I wanted to add more information you requested, this problem occurs on all projects and not just the one I passed you

this is the header response
Headers = {x-correlation-id: aced724b-4865-4588-8a53-4698855df0d2
Request-Context: appId=cid-v1:bde9711b-b84c-4c4b-a161-2546ac448498
X-ITwinPlatform-Media-Type: bentley.itwin-platform.v1
X-ITwinPlatform-Region: UK South
WWW-Authenticate: AzureApiManagementKey rea...

as you can see (I don't know if this is important) X-ITwinPlatform-Media-Type in the response and is linked to the v1 version
X-ITwinPlatform-Media-Type: bentley.itwin-platform.v1 , while in my c# code I explicitly indicate

client.DefaultRequestHeaders.Add("Accept", "application/vnd.bentley.itwin-platform.v2+json");

thanks for the help

[austeja-bentley]

In our logs I can see that this request came in with the following header value:

Accept:
 application/vnd.bentley.itwin-platform.v1+json,application/vnd.bentley.itwin-platform.v2+json

It could be that before you call client.DefaultRequestHeaders.Add("Accept", "application/vnd.bentley.itwin-platform.v2+json", client.DefaultRequestHeaders already has Accept header with value application/vnd.bentley.itwin-platform.v1+json.

Link to .NET docs:
https://learn.microsoft.com/en-us/dotnet/api/system.net.http.headers.httpheaders.add?view=net-8.0