Creating a SOAP client in C++ (VS 2010) without any third party library like gSOAP

Question

We need to make SOAP requests in C++. Basically a SOAP client. The catch is that we DON'T want to use any third party library like gSOAP. Reason being that the transactions are finance related . We need to write the complete code ourselves. Please suggest ideas towards it. I believe that this is going to be very complex.

Any ideas towards this would be of great help. Our environment is C++ on windows (VS 2010) Please note that for now, we can assume that there is a single SOAP based web service (written in C#) for which we need to do it. Therefore, any complexity related to generalizing this SOAP client can be left out for now.

Answer 1

Ultimately a SOAP request is a HTTP POST of XML data. You can build the XML yourself and use IWinHttpRequest to post that data to the server.