Where are wcparams documentation? How can I create a permanent creoview:// link?

[MikeAtCirrus]

Version: Windchill 12.0

Goal: Append permanent CreoView links to an Excel file so that a user can bypass needing to open windchill to view a windchill item listed in an excel table.

Description:

I wrote this VBA script to retrieve a creoView link:

Function getCreoViewLink(PN As String) As String
    Dim Value As Variant
    Dim response As Object
    Dim CreoViewRepresentations As Object
    Dim creoViewLink As String
    
    On Error Resume Next
    ' get response from helper function
    ' Get Response from Endpoint: https://" & server & ":443/Windchill/servlet/odata/v4/CADDocumentMgmt/CADDocuments?$select=Representations&$filter=Number eq '" & partNumber & "'&$count=false&$expand=Representations
    Set response = GetCADDocumentData(PN, CONST_PTC_SERVER_DOMAIN, CONST_UNAME, CONST_PASS)
    
    ' navigate Json to "CreoViewURL"
    Set CreoViewRepresentations = JsonConverter.ParseJson(response.responseText)("value")(1)("Representations") ' (1)("CreoViewURL")
    
    ' Exit early if cannot API request failed, return empty string
    If Err.Number <> 0 Then
        Err.Clear
        getCreoViewLink = ""
        Exit Function
    End If
    On Error GoTo 0

    ' Find the latest Representation
    For Each Representation In CreoViewRepresentations
        If UCase(Representation("CreoViewURL")("Label")) = "LATEST" Then
            creoViewLink = Representation("CreoViewURL")("URL")
            Exit For 'Exit early once found
        End If
    Next Representation
    
    ' Return CreoView link
    getCreoViewLink = creoViewLink
End Function

The links returned are similar to this:
'creoview://?wcparams=eyJhdHRyaWJ1dGVzIjp7InVybGJhc2UiOiJodHRwczovL1NFUlZFUi9XaW5kY2hpbGwiLCJzZXNzaW9uaWQiOiJhMUpYZG1kTzc1ZFE0RUpRREZnd1Q1OXEwSU0uYjBiOTkiLCJ1c2VyaWQiOiJtbWFyYWlzIn0sImlkIjoiY3YifQ==`

After doing a Base64 Decode on the link I find the actual arguments being passed to creoview:
`creoview://?wcparams={"attributes":{"urlbase":"https://SERVER/Windchill","sessionid":"a1JXdmdO75dQ4EJQDFgwT59q0IM.b0b99","userid":"mmarais"},"id":"cv"}`

Printed pretty:

{
   "attributes":
   {
      "urlbase":"https://SERVER/Windchill",
      "sessionid":"a1JXdmdO75dQ4EJQDFgwT59q0IM.b0b99",
      "userid":"mmarais"
   },

   "id":"cv"
}

Session IDs appear to be a 1 time use thing, they expire immediately after use and I get this error if I try to use the link a 2nd time:

How can I get the linkurl parameter? Currently from the Base64 Decoding it seems I'm passing a session ID argument...

I also would like to automate opening and merging a bunch of links at once, are there any parameters to bypass this window? Such as to merge a bunch of creoViews into a single session or to open them all separately.

[VladimirN]

Article - "Using the app View and Measure in 3D fails with "Must specify a session ID or linkurl parameter"": https://www.ptc.com/en/support/article/CS275729 

[MikeAtCirrus]

Not helpful, the reason I get the "Must specify a session ID or linkurl parameter" error is because the session ID expires after use.

As soon as someone uses the generated link it expires. I want to make the link permanent IE I someone can click on the link more than once.

I want information on what a linkurl looks like.

I decoded the wc params to this:

{
   "attributes":
   {
      "urlbase":"https://SERVER/Windchill",
      "sessionid":"a1JXdmdO75dQ4EJQDFgwT59q0IM.b0b99",
      "userid":"mmarais"
   },

   "id":"cv"
}

if I replace sessionid with linkurl, what value does it take?

{
   "attributes":
   {
      "urlbase":"https://SERVER/Windchill",
      "linkurl":"????????????????",
      "userid":"mmarais"
   },

   "id":"cv"
}