Find urn of svf file to retrieve metadata

Question

I want to retrieve metadata/properties from a DWG stored in BIM360. Assuming this endpoint can be used.

How can I get the urn of the DWG for this API call?

https://developer.api.autodesk.com/modelderivative/v2/designdata/{urn}/metadata

Does the DM API provide that information? Or do I have to translate the DWG into SVF myself in my own bucket?

The viewer can show the DWG very quickly, so I think the SVF is stored anywhere. When loaded into the viewer I could use the viewer method getBulkProperties(), but I want to retrieve metadata without viewing the model.

Answer 1

First you need to retrieve your file in BIM360. You can follow this tutorial Download file until step 5 (btw if you want the latest version of your file you can use Get tip instead of Get versions.

Into relationships, you should get something like that :

"derivatives": {
    "data": {
        "type": "derivatives",
        "id": "dXJuOmFkc2sud2lwc3RnOmZzLmZpbGU6dmYuNmJWcjRFVkRTYU9weWtjemVRWVIyUT92ZXJzaW9uPTE"
    }, ...

id is your file urn.

Now you can follow this tutorial Extract metadata to get metadata and properties.