[BUG] Updating ValueOnly on a Submodel directly is not working

[FelixMethe]

Describe the bug Trying to update a submodels valueOnly directly, returns a Failed to read request.

To Reproduce Steps to reproduce the behavior:

Let's say I have a Submodel:

curl --request POST \
  --url 'http://localhost:8081/submodels?=' \
  --header 'Content-Type: application/json' \
  --data '{
    "modelType": "Submodel",
    "kind": "Instance",
    "id": "mySubmodel",
    "submodelElements": [
        {
            "modelType": "Property",
            "value": "Hello, World!",
            "valueType": "xs:string",
            "idShort": "myProperty"
        }
    ]
}'

GETing $value works as expected

curl --request GET \
  --url 'http://localhost:8081/submodels/bXlTdWJtb2RlbA/$value?=' \
  --header 'Content-Type: application/json'

And returns:

{
    "myProperty": "Hello, World!"
}

But now when I try to Call PATCH

curl --request PATCH \
  --url 'http://localhost:8081/submodels/bXlTdWJtb2RlbA/$value?=' \
  --header 'Content-Type: application/json' \
  --data '{
    "myProperty": "Hello"
}'

I get the following error:

{
    "type": "about:blank",
    "title": "Bad Request",
    "status": 400,
    "detail": "Failed to read request",
    "instance": "/submodels/bXlTdWJtb2RlbA/$value"
}

BaSyx (please complete the following information):

• BaSyx Version: 2.0.0-SNAPSHOT
• BaSyx SDK: Java V2
• AAS Version: DotAAS V3

BaSyx configuration The default config: basyx-setup-11.zip

System (please complete the following information): Tested on a Mac [M1 (arm)] & VPS Linux Server

[aaronzi]

Hello @FelixMethe, can you please provide the URL you are sending the request to? Or better, maybe the entire request (for example in cURL format), so that we can reproduce this.

[FelixMethe]

Hello @aaronzi,

Thank you for your quick response. I have updated the issue.