Simple C++ onshape STL export

billyzelsnack

I have written a minimal c++ example for exporting STL files from a partstudio that supports both API Keys and OAuth authorization. I am not a web developer and I found the onshape-public examples extremely confusing to follow. I ended up writing this from scratch from the documentation instead. It's available here: https://github.com/billyzelsnack/simple_onshape_exportstls

billyzelsnack

I'm now trying to change it to use the /stl with the /partstudios call instead of the /parts call.
I generate a list of partId via the /parts call as before

Side note. Am I missing something that the Glassworks API Explorer can't actually test the stl calls because it needs to do a redirect?

I can take a copy/paste a string from the API Explorer and stick it into my code that does the redirect and get an stl back of the entire model. This is that call:

https://cad.onshape.com/api/v5/partstudios/d/bd9401ba05b5d74bf12bb1a6/w/998c0499cee6d8fc96af5cbf/e/ecd24da899ea1976c376c6e7/stl

However, if I copy/paste from the API Explorer and enter (one or more) partId (that my /parts call gave me). Like this call:

https://cad.onshape.com/api/v5/partstudios/d/bd9401ba05b5d74bf12bb1a6/w/998c0499cee6d8fc96af5cbf/e/ecd24da899ea1976c376c6e7/stl?partIds=partId%3DJLD%26partId%3DJRH

I get this redirect:

https://cad-usw2.onshape.com:443/modelexport?workspaceId=998c0499cee6d8fc96af5cbf&microversion=fb393aef1f4c43b2eb6d8a75&format=STL&mode=text&grouping=true&scale=1.0&units=inch&partIds=partId%3DJLD%26partId%3DJRH&_m=91affd80&documentId=bd9401ba05b5d74bf12bb1a6&elementId=ecd24da899ea1976c376c6e7

Which does not give me an stl, but this:

{

  "message" : "Not found.",

  "moreInfoUrl" : "",

  "status" : 404,

  "code" : 0

}

I've tried to add various combinations of the optional parameters too but it's always the same.

billyzelsnack

I can now get parts individually if I leave off the partId=

For example these two calls will give me stls for the two different parts:

https://cad.onshape.com/api/v5/partstudios/d/bd9401ba05b5d74bf12bb1a6/w/998c0499cee6d8fc96af5cbf/e/ecd24da899ea1976c376c6e7/stl?partIds=JLD

https://cad.onshape.com/api/v5/partstudios/d/bd9401ba05b5d74bf12bb1a6/w/998c0499cee6d8fc96af5cbf/e/ecd24da899ea1976c376c6e7/stl?partIds=JRH

However if I try a list as described in explorer (why I thought that I needed the partId= to begin with) I just get the error from above.
Here is the relevant section from API Explorer:

IDs of the parts to retrieve. Repeat query param to add more than one (i.e. partId=JHK&partId=JHD). May not be combined with other ID filters

billyzelsnack

ok. Figured it out. The multiple parts need to be comma separated. The example now supports individual files, a single combined stl, and a zip of the stls.

Leilena_Tekle

@billyzelsnack This is a bug in the documentation and we are fixing it. We will let you know as soon as the changes are made.