Pascal (Lazarus/Delphi)

HTTP SOAP 1.2 Request and Response using POST

See more HTTP Examples

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.

Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Http,
  Chilkat.HttpRequest,
  Chilkat.HttpResponse,
  Chilkat.Xml;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  soapXml: TXml;
  req: THttpRequest;
  resp: THttpResponse;
  xmlResponse: TXml;

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 := THttp.Create;

  soapXml := TXml.Create;

  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();

  WriteLn(soapXml.GetXml());

  req := THttpRequest.Create;
  req.HttpVerb := 'POST';
  req.SendCharset := False;
  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 := True;

  resp := THttpResponse.Create;
  success := http.HttpSReq('wsf.cdyne.com',80,False,req,resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  xmlResponse := TXml.Create;
  success := xmlResponse.LoadXml(resp.BodyStr);
  WriteLn(xmlResponse.GetXml());


  http.Free;
  soapXml.Free;
  req.Free;
  resp.Free;
  xmlResponse.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.