Delphi ActiveX

Transition from Http.PostJson to Http.HttpStr

Provides instructions for replacing deprecated PostJson method calls with HttpStr. Delphi ActiveX

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;
url: WideString;
jsonText: WideString;
responseObj: IChilkatHttpResponse;
responseOut: TChilkatHttpResponse;

begin
success := 0;

http := TChilkatHttp.Create(Self);

url := 'https://example.com/something';
jsonText := '{ ... }';

// ------------------------------------------------------------------------
// The PostJson method is deprecated:

responseObj := http.PostJson(url,jsonText);
if (http.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

// ...
// ...

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

responseOut := TChilkatHttpResponse.Create(Self);
success := http.HttpStr('POST',url,jsonText,'utf-8','application/json',responseOut.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;
end;