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

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
http: TChilkatHttp;
soapXml: TChilkatXml;
req: TChilkatHttpRequest;
resp: TChilkatHttpResponse;
xmlResponse: TChilkatXml;

begin
success := 0;

// 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 := TChilkatHttp.Create(Self);

soapXml := TChilkatXml.Create(Self);

soapXml.Tag := 'soap12: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:soap12','http://www.w3.org/2003/05/soap-envelope');

soapXml.NewChild2('soap12: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();

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

req := TChilkatHttpRequest.Create(Self);
req.HttpVerb := 'POST';
req.SendCharset := 0;
req.AddHeader('Content-Type','application/soap+xml; charset=utf-8');
req.AddHeader('SOAPAction','http://ws.cdyne.com/WeatherWS/GetCityWeatherByZIP');
req.Path := '/WeatherWS/Weather.asmx';
success := req.LoadBodyFromString(soapXml.GetXml(),'utf-8');

http.FollowRedirects := 1;

resp := TChilkatHttpResponse.Create(Self);
success := http.HttpSReq('wsf.cdyne.com',80,0,req.ControlInterface,resp.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

xmlResponse := TChilkatXml.Create(Self);
success := xmlResponse.LoadXml(resp.BodyStr);
Memo1.Lines.Add(xmlResponse.GetXml());
end;