Delphi DLL

Box.com Download Binary File to Memory

See more Box Examples

Retrieves the actual data of the file into a memory (not to a local file). Delphi DLL

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
http: HCkHttp;
bd: HCkBinData;
statusCode: Integer;

begin
success := False;

// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

http := CkHttp_Create();
CkHttp_putKeepResponseBody(http,True);

// Provide a previously obtained OAuth2 access token.
// See Get Box OAuth2 Access Token.
CkHttp_putAuthToken(http,'BOX_ACCESS_TOKEN');

CkHttp_putFollowRedirects(http,True);

// The file is specified by the file ID.
// In this case, we're downloading a file with FILE_ID = 283371752129.
// The general form of the URL for downloading is: https://api.box.com/2.0/files/FILE_ID/content
bd := CkBinData_Create();
success := CkHttp_DownloadBd(http,'https://api.box.com/2.0/files/283371752129/content',bd);
statusCode := CkHttp_getLastStatus(http);
if (success = False) then
  begin
    if (statusCode = 0) then
      begin
        // Unable to either send the request or get the response.
        Memo1.Lines.Add(CkHttp__lastErrorText(http));
      end
    else
      begin
        // We got a response, but the status code was not in the 200s
        Memo1.Lines.Add('Response status code: ' + IntToStr(statusCode));
        // Examine the response body.
        Memo1.Lines.Add('Response body:');
        Memo1.Lines.Add(CkHttp__lastResponseBody(http));
      end;
    Memo1.Lines.Add('Download failed.');

  end
else
  begin
    Memo1.Lines.Add('Downloaded tigers.jpeg into an object holding the binary data.');

    Memo1.Lines.Add('Number of bytes: ' + IntToStr(CkBinData_getNumBytes(bd)));
  end;

CkHttp_Dispose(http);
CkBinData_Dispose(bd);

end;