Why my digital twins model DTDL v3 does not upload or appear?

Question

Hello!

For some reason, I'm unable to upload a model to Azure Digital Twins with DTDL v3. It works fine with v2, but for some reason it doesn't work in v3.

I took this example from the documentation:

{
  "@context": "dtmi:dtdl:context;3",
  "@id": "dtmi:com:example:Thermostat;1",
  "@type": "Interface",
  "displayName": "Thermostat",
  "contents": [
    {
      "@type": "Telemetry",
      "name": "temp",
      "schema": "double"
    },
    {
      "@type": "Property",
      "name": "setPointTemp",
      "writable": true,
      "schema": "double"
    }
  ]
}

So, if I try to import it in ADT Model I receive the following console output:

*** Uploading selected models
- working on Sample.json

But i can't find the model after import also there aren't errors. It just doesn't appear.

And as I said, it works with v2. It's really weird since it's an example from the documentation.

https://github.com/Azure/opendigitaltwins-dtdl/blob/master/DTDL/v3/DTDL.v3.md

I have tried to change the id, and other stuff, but it stills doesn't work.

Answer 1

Hi @Francisco Jesús Duarte Abellán We got an update from the Product team regarding this issue. DTDL v3 support is currently limited in the ADT Explorer. In order to upload a Digital Twin model created using DTDL v3, you would need to leverage the following Rest API end point.

https://{{ADTHostname}}/models?api-version=2020-10-31

You can then view the uploaded model by invoking the API end point https://{{ADTHostname}}/models?api-version=2020-10-31 or https://{{digitaltwins-hostname}}/models/{{model-id}}?api-version=2020-10-31

Please note that Viewing of v3 models in the Azure Digital Twin Explorer is also limited.

Here is a resource How to send requests to the Azure Digital Twins APIs using Postman that will provide more details on how to use the Rest API.

We will also make sure to update the public documentation on DTDL v3 to reflect the following message.

Hope this answers your question. Please let us know if you need any further details on this.

Hope this answers your question. Please let us know if you need any further details on this.

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Answer 2

Hello @Francisco Jesús Duarte Abellán ,

I can confirm I get the same (negative) result.

I tried this with both an existing and new ADT environment in the West Europe region.

I will ask around for an update on this one.