(Delphi ActiveX) Load JSON Array from HTTP Response Body

Demonstrates how to load the HTTP response body directly into a JsonArray.

Note: This example requires Chilkat v9.5.0.89 or greater because it uses the GetBodyJarr method. Prior to v9.5.0.89, and application would need to first copy the HTTP response body to a Chilkat StringBuilder object by calling GetBodySb, and then load the JsonArray by calling JsonArray.LoadSb.

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_v9_5_0_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: TChilkatHttp;
success: Integer;
resp: IChilkatHttpResponse;
jarr: TChilkatJsonArray;

begin
http := TChilkatHttp.Create(Self);

resp := http.PText('GET','https://www.chilkatsoft.com/exampledata/sampleArray.json','','','',0,0);
if (http.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

// A JSON array is JSON that begins with "[" and ends with "]"
jarr := TChilkatJsonArray.Create(Self);

// If we wish to transfer (instead of copy) the JSON from the HttpResponse to the JsonArray, then add the keyword "TakeResponseBody" to UncommonOptions
// This could save memory for extremely large JSON responses.
resp.UncommonOptions := 'TakeResponseBody';

resp.GetBodyJarr(jarr.ControlInterface);

Memo1.Lines.Add(jarr.Emit());

// Note: If UncommonOptions contained "TakeResponseBody", then the response BodyStr will now be empty:
Memo1.Lines.Add('----');
Memo1.Lines.Add(resp.BodyStr);
end;