(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.

Note: This example requires Chilkat v11.0.0 or greater.

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
success: Boolean;
http: HCkHttp;
soapXml: HCkXml;
req: HCkHttpRequest;
resp: HCkHttpResponse;
xmlResponse: HCkXml;

begin
success := False;

// 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 := CkHttpResponse_Create();
success := CkHttp_HttpSReq(http,'wsf.cdyne.com',80,False,req,resp);
if (success = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

xmlResponse := CkXml_Create();
success := CkXml_LoadXml(xmlResponse,CkHttpResponse__bodyStr(resp));
Memo1.Lines.Add(CkXml__getXml(xmlResponse));

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

end;