Get SOAP Message before sending it to the WebService in .NET

Question

I'm calling an external HTTPS webservice.

In order to check what is wrong, the owner needs the SOAP request I'm sending.

I have a web reference and the generated proxy class generated by VS 2008...

Is there a way to see the SOAP message just before sending it?

I'm thinking in some .net code... because the Sniffers I tried didn't "see" the webservice invocation don't know why.

Answer 1

You can simply serialize the request object, before subtmit, like this:

var sreq = new SomeSoapRequest();  // ... fill in here ...  var serxml = new System.Xml.Serialization.XmlSerializer(sreq.GetType()); var ms = new MemoryStream(); serxml.Serialize(ms, sreq); string xml = Encoding.UTF8.GetString(ms.ToArray());  // in xml string you have SOAP request 

Answer 2

What you need is a SoapExtension. There's quite a few good examples here:

How do I get access to SOAP response

Getting RAW Soap Data from a Web Reference Client running in ASP.net

XML Parse error while processing the SOAP response

One of the articles linked to: http://msdn.microsoft.com/en-us/magazine/cc164007.aspx

Also search SO for: https://stackoverflow.com/search?q=SoapExtension