(Delphi DLL) Transition from Http.PTextSb to Http.HttpSb

Provides instructions for replacing deprecated PTextSb method calls with HttpSb.

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, StringBuilder, HttpResponse;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: HCkHttp;
verb: PWideChar;
url: PWideChar;
sbRequestBody: HCkStringBuilder;
charset: PWideChar;
contentType: PWideChar;
responseObj: HCkHttpResponse;
responseOut: HCkHttpResponse;
success: Boolean;

begin
http := CkHttp_Create();

verb := 'PUT';
url := 'https://example.com/';
sbRequestBody := CkStringBuilder_Create();
CkStringBuilder_Append(sbRequestBody,'This is the HTTP request body');
charset := 'utf-8';
contentType := 'text/plain';

// ------------------------------------------------------------------------
// The PTextSb method is deprecated:

responseObj := CkHttp_PTextSb(http,verb,url,sbRequestBody,charset,contentType,False,False);
if (CkHttp_getLastMethodSuccess(http) = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

// ...
// ...

CkHttpResponse_Dispose(responseObj);

// ------------------------------------------------------------------------
// Do the equivalent using HttpSb.
// Your application creates a new, empty HttpResponse object which is passed 
// in the last argument and filled upon success.

responseOut := CkHttpResponse_Create();
success := CkHttp_HttpSb(http,verb,url,sbRequestBody,charset,contentType,responseOut);
if (success = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

CkHttp_Dispose(http);
CkStringBuilder_Dispose(sbRequestBody);
CkHttpResponse_Dispose(responseOut);

end;