Powershell New-WebServiceProxy - how to call WCF service - wcf

Question

I'm trying to call a WCF service from PowerShell.
This is what I have so far based on a few misc example I found on the web:
# Create the WebSvcURL variable and pass the WSDL URL
$WebSvcURL= “http://localhost/DEMO/SetPassKey/SetPassKey_Logic_SetPassKeyWebService_SetPassKeyWCF.svc?wsdl“
#Create the Web Service Proxy Object
#$serviceProxy = New-WebServiceProxy -Uri $WebSvcURL -Namespace "http://Sample.SetPassKey.Logic" -Class Program -UseDefaultCredential
$serviceProxy = New-WebServiceProxy -Uri $WebSvcURL -UseDefaultCredential
# Create Request Object
$namespace = $serviceProxy.getType().namespace
write-host "Namespace=$namespace"
$req = New-Object ($namespace + "/SetPassKeyOrchWebRequest")
$resp = New-Object ($namespace + "/SetPassKeyOrchWebResponse")
$req.NewPassKey = "TEST" # <--- PUT YOUR NEW PASSWORD HERE
$resp = $serviceProxy.SetPassKey($req)
$resp
I'm confused on a few things:
If and when I need to include the -Namespace and -Class parameters on the. Since it looks at the WSDL, I don't understand why it needs the -Namespace and -Class.
How to construct the request/response objects
Should the URL be the actual URL of the web service or should it include the ?wsdl suffix
UPDATE:
I found this blog which states:
The -Namespace parameter is optional and when not
specified then it gets a random value from the cmdlet.
I was thinking it was an XML Namespace, but it's a .NET framework namespace.
# Create the WebSvcURL variable and pass the WSDL URL
$WebSvcURL= “http://localhost/DEMO/SetPassKey/SetPassKey_Logic_SetPassKeyWebService_SetPassKeyWCF.svc?wsdl“
#Create the Web Service Proxy Object
$serviceProxy = New-WebServiceProxy -Uri $WebSvcURL -UseDefaultCredential -Namespace "MyNamespace" -Class Program
# Create Request Object
$req = New-Object ("MyNamespace.SetPassKeyOrchWebRequest")
$resp = New-Object ("MyNamespace.SetPassKeyOrchWebResponse")
$req.NewPassKey = "TEST" # <--- PUT YOUR NEW PASSWORD HERE
$resp = $serviceProxy.SetPassKey($req)
$resp
Now I get this error:
Exception calling "SetPassKey" with "1" argument(s): "The underlying connection was closed: An unexpected error occurred on a
receive."
The webservice can be called by a C# console program, so I know it works. Just need to call it from PowerShell.

Answer 1

I tried some things, and finally got it to work.
I did change my binding from WCF-WSHttp to WCF-BasicHttp.
I also followed this post, which said they only got it working by using the auto-generated namespace.
One of my issues originally was using "/" instead of "." as the separator between the namespace and the web request/response class names.
I'm still confused by the -namespace and -class parameters, as the post above said it only got the process working by using the autogenerated namespace (which happens when you omit the -namespace parm).
My code ended up something like this:
# Create the WebSvcURL variable and pass the WSDL URL
$WebSvcURL= “http://localhost/DEMO/SetPassKey/SetPassKey_Logic_SetPassKeyWebService_SetPassKeyWCF.svc?wsdl“
#Create the Web Service Proxy Object
$serviceProxy = New-WebServiceProxy -Uri $WebSvcURL -UseDefaultCredential
$autoGenNamespace = $serviceProxy.getType().namespace
write-host "Namespace=$namespace"
$req = New-Object ($autoGenNamespace + ".SetPassKeyOrchWebRequest")
$resp = New-Object ($autoGenNamespace + ".SetPassKeyOrchWebResponse")
$req.NewPassKey = "TEST" # <--- PUT YOUR NEW PASSWORD HERE
$req.NewPassKey = "TEST" # <--- PUT YOUR NEW PASSWORD HERE
Write-Host "Request:"
Write-Host ($req | Format-Table | Out-String)
Write-Host "About to call WebService"
$resp = $serviceProxy.SetPassKey($req)
Write-Host "Response:"
Write-Host ($resp | Format-Table | Out-String)
NOTE: Just putting the variable name without the write-host statement was causing things to come out in a different sequence. The FormatTable was still truncating some fields, so I will list each return string in my $resp separately.