What could cause an Error 413 on file convertion ?

[KevinFournier]

Hello,

I have one file I cannot generate a gltf from. I get this error back when I try to: Unable to generate the glTF file: abort(Error: Request failed with status code 413).

I wont be surprised if this come from the model complexity. It’s the metal part of a reinforced concrete section.
See below a lighter version of the model we managed to load.

(This generated glTF has ~250 item with ~75 metadata field attached to each)

I may be an isolated case but do you know what could trigger an error 413 during a model transformation ?
Could it trigger the Forge rate limit, or a quota, or something else I’m not aware of ?

Thank you.

[KevinFournier]

UPDATE:

I found out it could be linked to either the request :urn/metadata/:guid or the request GET :urn/metadata/:guid/properties.

If this is the reason it may be because the metadata tree is too big (>20mb). That would not surprise me as it is a big model.
In this case, maybe setting the forceget query string parameter to true could resolve the problem.

I’ll try to see what I can do on my side to test that.

…

Unbelivable how I always start to find lead to solve my problems only when I ask other people to help me.

[KevinFournier]

I found out what was the problem.

We were using getDerivative(…) instead of getDerivativeChuncked(…) as is it done in the exemple. So any metadata above 20mo would not be downloaded.

[petrbroz]

Hi Kevin, thanks for reporting this 👍 Yes, the 413 response typically indicates that a resource you're trying to download in one piece is too large and should be instead downloaded in chunks, and in this case it's most likely coming from the https://forge.autodesk.com/en/docs/model-derivative/v2/reference/http/urn-manifest-derivativeurn-GET endpoint.

I think the converter could probably use the "chunked" download by default, so let me reopen this issue to track that.

[KevinFournier]

Hi Petr

Glad to help.

I only have a limited control on which Revit model I have access to but if you need it I may be able to do some test if you need it.