How to send a SOAP in C?

You can use the WWSAPI , as mentioned in the Toby Mosque response , to do this you should basically create a Proxy service through the WsCreateServiceProxy and once created, use the function WsOpenServiceProxy passing as a parameter a structure WS_ENDPOINT_ADDRESS that will contain the information you need to connect to the service.

When you no longer need to use this service, you can call the WsCloseServiceProxy to close the communication and free the memory associated with it with WsFreeServiceProxy .

On the page below you can find links for all the resources available to make this type of connection. MSDN.

• Connecting native C / C ++ code and Web Services using WWSAPI

There are also libraries that can do this work for you. For example, the csoap , a client / server library for SOAP written in pure C.

• Documentation
• SOAP Client - example
• SOAP Server - example

Another alternative is Apache Fondation's Apache Axis project.

• C version - Apache Axis2 / C
  • Documentation
  • Encoding Conventions
• Java version - Apache Axis2 / Java
  • Index

@JorgeB, to connect a C / C ++ application to a WebService, you need to use WWSAPI.

For more information you can look at the following website:

link