Translate a Revit (RVT) model to SVF2 with the Model Derivative API and extract element metadata
domain: aps.autodesk.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Upload the RVT to Object Storage Service (OSS) and Base64 (URL-safe, no padding) encode its object URN
Submit POST /modelderivative/v2/designdata/job with the encoded urn and output.formats[].type=svf2 (set compressedUrn:true for large models)
Poll GET /modelderivative/v2/designdata/{urn}/manifest every 5-10s until status is success (or failed/timeout)
List viewable GUIDs with GET /modelderivative/v2/designdata/{urn}/metadata, then fetch the object tree via GET .../metadata/{guid}
Pull element properties with GET /modelderivative/v2/designdata/{urn}/metadata/{guid}/properties, optionally filtered by objectid, for quantity takeoff or scheduling
Known gotchas
IFC-sourced translations changed materially with conversion method v4 (manifest identifier "4"): GlobalId replaces IfcGuid, property set names change, and the 3D view node is always named Scene - code written for v3 output will misparse v4 output
A 409 on the translate job usually means one already exists for that URN; use header x-ads-force: true to restart it
Large/complex models can hit the timeout manifest status with no automatic retry - resubmit with x-ads-force: true
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