New-WebServiceProxy additional [ref] parameters?

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1 year, 6 months ago.

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  • #77917

    Points: 0
    Rank: Member


    I am trying to utilize a SOAP service using New-WebServiceProxy but somehow I have a strange behavior that Powershell is adding elements that are part of the output message to the input message arguments.
    The code I am executing is:

    $uri = ''
    $proxy = New-WebServiceProxy -Uri $uri

    In the XML a GetList operation is defined with following values

    As you can see it take 3 parameters and if I call it from other tools (SOAPUI or Wizdler) it is properly working. However if look at the $proxy.getlist value it shows me following:

    string GetList(string Qualification, string startRecord, string maxLimit, [ref] string Submitter__c, [ref] datetime Create_Date__c, [ref] bool Create_Date__cSpecified, [ref] string
    Assigned_To__c, [ref] string Last_Modified_By__c, [ref] datetime Modified_Date__c, [ref] bool Modified_Date__cSpecified, [ref] ....
    (continuing list of 50+ parameters)

    The [ref] arguments are actually elements defined in the response message:


    If I try to call the operation with only 3 arguments I receive an error:
    Cannot find an overload for "GetList" and the argument count: "3".

    I have tested it with Powershell 5.1 and 4.0, same behavior.
    Can anyone tell me why Powershell adds these [ref] arguments? It clearly is working with other tools so the XML itself seems to be fine.

    Thank you.

  • #77944

    Points: 1,811
    Helping HandTeam Member
    Rank: Community Hero

    You're going to need to use a Gist as indicated in the posting instructions. Raw XML can't render here.

  • #78145

    Points: 0
    Rank: Member

    Thank you. I noticed it too late and could not edit the post anymore because it was already pending for review.
    To complete the post:

    In the XML a input message is defined as:

    And the output message is defined as:

    I would expect that I can invoke the GetList call with 3 parameters (Qualification, startRecord, maxLimit) but as mentioned in my initial post Powershell returns an error. It seems to expects also values for the [ref] arguments (Submitter__c, Create_Date__c, Assigned_To__c,..) that are actually defined in the response message.

    Any idea?

    • #79375

      Points: 0
      Rank: Member

      Solved in the meantime. At the end it turned out to be caused by the SOAP XML created by the application. So if someone faces a similar issue, first thing check your XML. however, I still don't know what exactly caused the problem. I also had the XML checked by an online validation tool which showed me that the file was generally valid – so you can't rely on that.

      But it is still wired that Powershell behaves in such unexpected way when other solutions like SOAPUI and Wizdler had no problem with it.

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