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SOAP Request/Response Issue

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Join Date: Jun 2008

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CJL1980

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SOAP Request/Response Issue

Jun 10th, 2008

Hi,

First thing is first, I wasnt sure whether to put this in this section or in the VB.NET section as it has aspects of both but I decided the issue was probably more relevent to this section so here it is.

Secondly this question may seem trivial (any question is trivial if you know the answer I guess) so please bear with me as I am new to XML and hadn't even heard of SOAP until yesterday and this is pretty much the issue here I think.

OK down to business, I have to send a SOAP request to consume a webserve and get a response back. I am using System.Net.HttpWebRequest and System.Net.HttpWebResponse classes to send/recieve the SOAP objects.

The issue is that I can not seem to get it to return anything. When I run the console app in debug mode it gets to the objHTTPReq.GetResponse() method and then stalls.

It is not causing an Exception as I have a try/catch arround the block (see the code below). I have been working away at this for almost 5 hours now and getting nowhere. Another thing that could be causing the issue is that I may not be calling a service that is working (I asked my friend Google for a list of public services and picked a simple one to test the console app).

The bottom line is that I know that little about this that I could just be using the wrong URL and/or entering the wrong parameters in the wrong order etc etc.

Any help would be appreciated.

The code is shown below:

 Help with Code Tags 
 RSS, Web Services and SOAP Syntax (Toggle Plain Text) 
Public Function xxxxxxxxx()
        Dim soapMessage As String
        Dim objHTTPReq As System.Net.HttpWebRequest
        Dim objHTTPRes As System.Net.HttpWebResponse
        Try
            objHTTPReq = CType(System.Net.WebRequest.CreateDefault(New System.Uri("http://euro2008.dataaccess.eu/footballpoolwebservice.wso")), HttpWebRequest)
            objHTTPReq.ContentType = "text/xml;charset=""utf-8"""
            objHTTPReq.Method = "POST"
            objHTTPReq.Accept = "text/xml"
            ' CREDENTIALS TO BE ARANGED objHTTPReq.Credentials = (New NetworkCredential("username", "password", "domain"))
 
 
  'SOAPAction header
 
            objHTTPReq.Headers.Add("SOAPAction", """http://euro2008.dataaccess.eu/footballpoolwebservice/AllPlayerNames""")
 
            soapMessage = "<?xml version='1.0' encoding='utf-8'?><soap:Envelope xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'><soap:Body><AllPlayerNames xmlns='http://euro2008.dataaccess.eu'></AllPlayerNames></soap:Body></soap:Envelope>"
            'Send the XML Request
 
            Dim objStream As System.IO.StreamWriter
            objStream = New StreamWriter(objHTTPReq.GetRequestStream(), Encoding.UTF8)
            objStream.Write(soapMessage)
            objHTTPRes = objHTTPReq.GetResponse()
 
            ''''And you can display or process the XML
 
            Dim objXML As New System.Xml.XmlDocument()
            objXML.Load(objHTTPRes.GetResponseStream())
            Return objXML
        Catch ex As Exception
            Console.WriteLine(ex.Message)
        End Try
    End Function
Public Function xxxxxxxxx()
        Dim soapMessage As String
        Dim objHTTPReq As System.Net.HttpWebRequest
        Dim objHTTPRes As System.Net.HttpWebResponse
        Try
            objHTTPReq = CType(System.Net.WebRequest.CreateDefault(New System.Uri("http://euro2008.dataaccess.eu/footballpoolwebservice.wso")), HttpWebRequest)
            objHTTPReq.ContentType = "text/xml;charset=""utf-8"""
            objHTTPReq.Method = "POST"
            objHTTPReq.Accept = "text/xml"
            ' CREDENTIALS TO BE ARANGED objHTTPReq.Credentials = (New NetworkCredential("username", "password", "domain"))


  'SOAPAction header

            objHTTPReq.Headers.Add("SOAPAction", """http://euro2008.dataaccess.eu/footballpoolwebservice/AllPlayerNames""")

            soapMessage = "<?xml version='1.0' encoding='utf-8'?><soap:Envelope xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'><soap:Body><AllPlayerNames xmlns='http://euro2008.dataaccess.eu'></AllPlayerNames></soap:Body></soap:Envelope>"
            'Send the XML Request

            Dim objStream As System.IO.StreamWriter
            objStream = New StreamWriter(objHTTPReq.GetRequestStream(), Encoding.UTF8)
            objStream.Write(soapMessage)
            objHTTPRes = objHTTPReq.GetResponse()

            ''''And you can display or process the XML

            Dim objXML As New System.Xml.XmlDocument()
            objXML.Load(objHTTPRes.GetResponseStream())
            Return objXML
        Catch ex As Exception
            Console.WriteLine(ex.Message)
        End Try
    End Function

The info on the service I am tring to communicate with is below:

 Help with Code Tags 
 RSS, Web Services and SOAP Syntax (Toggle Plain Text) 
Service Name: AllPlayerNames
 
 
Reqest:
 
 
POST /footballpoolwebservice.wso HTTP/1.1
Host: euro2008.dataaccess.eu
Content-Type: text/xml; charset=utf-8
Content-Length: length
 
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <AllPlayerNames xmlns="http://euro2008.dataaccess.eu">
    </AllPlayerNames>
  </soap:Body>
</soap:Envelope>
 
 
Response:
 
 
HTTP/1.1 200 OK
Content-Type: text/xml; charset=utf-8
Content-Length: length
 
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <AllPlayerNamesResponse xmlns="http://euro2008.dataaccess.eu">
      <AllPlayerNamesResult>
        <string>string</string>
        <string>string</string>
      </AllPlayerNamesResult>
    </AllPlayerNamesResponse>
  </soap:Body>
</soap:Envelope>
Service Name: AllPlayerNames

	
Reqest:


POST /footballpoolwebservice.wso HTTP/1.1
Host: euro2008.dataaccess.eu
Content-Type: text/xml; charset=utf-8
Content-Length: length

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <AllPlayerNames xmlns="http://euro2008.dataaccess.eu">
    </AllPlayerNames>
  </soap:Body>
</soap:Envelope>


Response:


HTTP/1.1 200 OK
Content-Type: text/xml; charset=utf-8
Content-Length: length

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <AllPlayerNamesResponse xmlns="http://euro2008.dataaccess.eu">
      <AllPlayerNamesResult>
        <string>string</string>
        <string>string</string>
      </AllPlayerNamesResult>
    </AllPlayerNamesResponse>
  </soap:Body>
</soap:Envelope>