Issues with file upload - filename missing and file.value changed

[StenGruener]

Hi all,

my scenario is to load an AASX package with a File element "File1" which references a file which is included in the AASX package "abc.txt":

after the load of the AASX file into the server, a file element is created

  "modelType": {
    "name": "File"
  },
  "dataSpecification": [],
  "embeddedDataSpecifications": [],
  "kind": "Instance",
  "value": "http://host/aasServer/basyx-temp/aasx1/files/aasx/files/abc.txt",
  "mimeType": "text/plain",
  "idShort": "File1",
<---cut off--->
}

When I navigate the value link, the filename of the download abc.txt (probably taken from AASX file)

After upload the file by using /File1/upload URK, the content is changed to:

  "modelType": {
    "name": "File"
  },
  "dataSpecification": [],
  "embeddedDataSpecifications": [],
  "kind": "Instance",
  "value": "http://host/aasServer/shells/<aas_id>/aas/submodels/<submodel_name>/submodel/submodelElements/File1/File",
  "mimeType": "text/plain",
  "idShort": "File1",
<---cut off--->
}

When I navigate the value link, the filename of the download is changed to File1.txt (probably combination of idShort and mimeType)

There are many flaws:

• the content of "File1.value" may change anytime and cannot be cached
• the actual filename of the download may change anytime (or get lost compared to AASX files) and we need business-logic to workaround it

I understand that this is not at all specified in AAS specs, ideally you would just replace the static file "basyx-temp/aasx1/files/aasx/files/abc.txt" on file upload in case the file was coming out of the AASX file.