(Delphi DLL) HTTP SOAP 1.2 Request and Response using POST

Demonstrates a working SOAP 1.2 request and response using POST with a live server. You may try running this example with the URLs and data provided. See http://wsf.cdyne.com/WeatherWS/Weather.asmx?op=GetCityWeatherByZIP for details.

Note: This example is correct in theory, but no longer works for live testing because the SOAP service provider (cdyne.com) has made changes or discontinued the free service.

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Http, HttpRequest, HttpResponse, Xml;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: HCkHttp;
soapXml: HCkXml;
success: Boolean;
req: HCkHttpRequest;
resp: HCkHttpResponse;
xmlResponse: HCkXml;

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

// --------------------------------------------------------------------------------
// Also see Chilkat's Online WSDL Code Generator
// to generate code and SOAP Request and Response XML for each operation in a WSDL.
// --------------------------------------------------------------------------------

http := CkHttp_Create();

soapXml := CkXml_Create();

CkXml_putTag(soapXml,'soap12:Envelope');
success := CkXml_AddAttribute(soapXml,'xmlns:xsi','http://www.w3.org/2001/XMLSchema-instance');
success := CkXml_AddAttribute(soapXml,'xmlns:xsd','http://www.w3.org/2001/XMLSchema');
success := CkXml_AddAttribute(soapXml,'xmlns:soap12','http://www.w3.org/2003/05/soap-envelope');

CkXml_NewChild2(soapXml,'soap12:Body','');
success := CkXml_GetChild2(soapXml,0);
CkXml_NewChild2(soapXml,'GetCityWeatherByZIP','');
success := CkXml_GetChild2(soapXml,0);
success := CkXml_AddAttribute(soapXml,'xmlns','http://ws.cdyne.com/WeatherWS/');
CkXml_NewChild2(soapXml,'ZIP','60187');
CkXml_GetRoot2(soapXml);

Memo1.Lines.Add(CkXml__getXml(soapXml));

req := CkHttpRequest_Create();
CkHttpRequest_putHttpVerb(req,'POST');
CkHttpRequest_putSendCharset(req,False);
CkHttpRequest_AddHeader(req,'Content-Type','application/soap+xml; charset=utf-8');
CkHttpRequest_AddHeader(req,'SOAPAction','http://ws.cdyne.com/WeatherWS/GetCityWeatherByZIP');
CkHttpRequest_putPath(req,'/WeatherWS/Weather.asmx');
success := CkHttpRequest_LoadBodyFromString(req,CkXml__getXml(soapXml),'utf-8');

CkHttp_putFollowRedirects(http,True);

resp := CkHttp_SynchronousRequest(http,'wsf.cdyne.com',80,False,req);
if (CkHttp_getLastMethodSuccess(http) = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
  end
else
  begin
    xmlResponse := CkXml_Create();
    success := CkXml_LoadXml(xmlResponse,CkHttpResponse__bodyStr(resp));
    Memo1.Lines.Add(CkXml__getXml(xmlResponse));
    CkHttpResponse_Dispose(resp);
  end;

CkHttp_Dispose(http);
CkXml_Dispose(soapXml);
CkHttpRequest_Dispose(req);
    CkXml_Dispose(xmlResponse);

end;