Commonly, we can find the filename in the request header Content-Disposition
when calling GET buckets/:bucketKey/objects/:objectName, but BIM360 objects are a little different. The filename is stored in the version tip.
HTTP/1.1 200 OK
Access-Control-Allow-Credentials: true
Access-Control-Allow-Headers: Authorization, Accept-Encoding, Range, Content-Type
Access-Control-Allow-Methods: GET
Access-Control-Allow-Origin: *
Content-Disposition: attachment; filename="test.txt"
Content-Type: application/x-www-form-urlencoded
Date: Sat, 21 May 2016 00:24:25 GMT
ETag: "33a16388013ce310564af70b0ef5320d8fd85444"
Server: Apigee Router
Content-Length: 618
Connection: keep-alive
Therefore, you need to get the filename from the display name of the version first, then call GET buckets/:bucketKey/objects/:objectName with the display name you got from its version tip.
With curl, we can give the name by adding the -o option, see https://stackoverflow.com/a/69520470/7745569
curl -o rst_house.rvt --location --request GET 'https://developer.api.autodesk.com/oss/v2/buckets/wip.dm.prod/objects/a755b110-3d32-567b-871c-cb555e6087c1.rvt' \
--header 'Authorization: Bearer ' \
--header 'Content-Type: application/octet-stream'
Cheers,