(C# UWP/WinRT) Making SOAP Requests using the REST API

There's no reason a SOAP request cannot be sent using the REST API. It's only a matter of adding a SOAP specific header, and providing the SOAP XML request body. The response body is the SOAP response XML.

This example sends a request to ws.cdyne.com to get city weather by zip code.

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// Demonstrates how to do a SOAP request using the REST API.

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.Rest rest = new Chilkat.Rest();

// This is the request to be sent:

// POST /WeatherWS/Weather.asmx HTTP/1.1
// Host: wsf.cdyne.com
// Content-Type: text/xml; charset=utf-8
// Content-Length: length
// SOAPAction: "http://ws.cdyne.com/WeatherWS/GetCityWeatherByZIP"
// 
// <?xml version="1.0" encoding="utf-8"?>
// <soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
//   <soap:Body>
//     <GetCityWeatherByZIP xmlns="http://ws.cdyne.com/WeatherWS/">
//       <ZIP>string</ZIP>
//     </GetCityWeatherByZIP>
//   </soap:Body>
// </soap:Envelope>

// Note: The application does not need to set the Host or Content-Length headers.
// Chilkat will automatically add these headers.

// Make the initial connection (without sending a request yet).
bool bTls = false;
int port = 80;
bool bAutoReconnect = true;
// In this particular case, it is important to connect to "wsf.cdyne.com", not "ws.cdyne.com"...
bool success = await rest.ConnectAsync("wsf.cdyne.com",port,bTls,bAutoReconnect);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

// Add request headers:
success = rest.AddHeader("Content-Type","text/xml; charset=utf-8");
success = rest.AddHeader("SOAPAction","http://ws.cdyne.com/WeatherWS/GetCityWeatherByZIP");

// Build the SOAP XML request body.
Chilkat.Xml soapXml = new Chilkat.Xml();

soapXml.Tag = "soap:Envelope";
success = soapXml.AddAttribute("xmlns:xsi","http://www.w3.org/2001/XMLSchema-instance");
success = soapXml.AddAttribute("xmlns:xsd","http://www.w3.org/2001/XMLSchema");
success = soapXml.AddAttribute("xmlns:soap","http://schemas.xmlsoap.org/soap/envelope/");

soapXml.NewChild2("soap:Body","");
success = soapXml.GetChild2(0);
soapXml.NewChild2("GetCityWeatherByZIP","");
success = soapXml.GetChild2(0);
success = soapXml.AddAttribute("xmlns","http://ws.cdyne.com/WeatherWS/");
soapXml.NewChild2("ZIP","60187");
soapXml.GetRoot2();

Debug.WriteLine(soapXml.GetXml());

// Send the SOAP request
string responseXml = await rest.FullRequestStringAsync("POST","/WeatherWS/Weather.asmx",soapXml.GetXml());
if (rest.LastMethodSuccess != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

// When successful, the response status code will equal 200.
if (rest.ResponseStatusCode != 200) {
    // Examine the request/response to see what happened.
    Debug.WriteLine("response status code = " + Convert.ToString(rest.ResponseStatusCode));
    Debug.WriteLine("response status text = " + rest.ResponseStatusText);
    Debug.WriteLine("response header: " + rest.ResponseHeader);
    Debug.WriteLine("response body (if any): " + responseXml);
    Debug.WriteLine("---");
    Debug.WriteLine("LastRequestStartLine: " + rest.LastRequestStartLine);
    Debug.WriteLine("LastRequestHeader: " + rest.LastRequestHeader);
    return;
}

Chilkat.Xml xml = new Chilkat.Xml();
success = xml.LoadXml(responseXml);

// GetXml will emit XML that is nicely indented for human viewing..
Debug.WriteLine(xml.GetXml());

// A sample response XML is shown below...

// To get some information, use ChilkatPath.  For example...
Debug.WriteLine("Temperature: " + xml.ChilkatPath("soap:Body|GetCityWeatherByZIPResponse|GetCityWeatherByZIPResult|Temperature|*"));

Debug.WriteLine("Success.");

// <?xml version="1.0" encoding="utf-8" ?>
// <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
//     <soap:Body>
//         <GetCityWeatherByZIPResponse xmlns="http://ws.cdyne.com/WeatherWS/">
//             <GetCityWeatherByZIPResult>
//                 <Success>true</Success>
//                 <ResponseText>City Found</ResponseText>
//                 <State>IL</State>
//                 <City>Wheaton</City>
//                 <WeatherStationCity>West Chicago</WeatherStationCity>
//                 <WeatherID>10</WeatherID>
//                 <Description>Mostly Sunny</Description>
//                 <Temperature>33</Temperature>
//                 <RelativeHumidity>39</RelativeHumidity>
//                 <Wind>VRB5</Wind>
//                 <Pressure>30.33F</Pressure>
//                 <Visibility />
//                 <WindChill />
//                 <Remarks />
//             </GetCityWeatherByZIPResult>
//         </GetCityWeatherByZIPResponse>
//     </soap:Body>
// </soap:Envelope>