Pascal (Lazarus/Delphi)

Upload a Blob using a Container’s Shared Access Signature

See more Azure Cloud Storage Examples

Shows how to upload an Azure blob using a URL with a shared access signature. 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.HttpResponse,
  Chilkat.Http;

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

procedure RunDemo;
var
  success: Boolean;
  url: string;
  http: THttp;
  resp: THttpResponse;
  statusCode: Integer;
  url2: string;

begin
  success := False;

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

  //  To upload a file we're simply sending a PUT with the content of the data.  For example:

  //  PUT https://myaccount.blob.core.windows.net/pictures/photo.jpg?sv=2015-02-21&st=2015-07-01T08%3a49Z&se=2015-07-02T08%3a49Z&  sr=c&sp=w&si=YWJjZGVmZw%3d%3d&sig=Rcp6gQRfV7WDlURdVTqCa%2bqEArnfJxDgE%2bKH3TCChIs%3d HTTP/1.1  
  //  Host: myaccount.blob.core.windows.net  
  //    
  //  Content-Length: 12  
  //    
  //  Hello World.  

  //  Upload a string to a helloWorld.txt file in the "mycontainer" container, in the "chilkat" account.
  url := 'https://chilkat.blob.core.windows.net/mycontainer/helloWorld.txt?sv=2021-06-08&ss=bfqt&srt=sco&sp=rwdlacupiyx&se=2023-02-12T21:30:53Z&st=2023-02-12T13:30:53Z&spr=https&sig=HB8CoZiD7EJD1rQNIVnLl%2Bq7kyLcOCnSXR14TadBv6s%3D';

  http := THttp.Create;

  http.SetRequestHeader('x-ms-blob-type','BlockBlob');

  resp := THttpResponse.Create;
  success := http.HttpStr('PUT',url,'Hello World.','utf-8','text/plain',resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  statusCode := resp.StatusCode;
  WriteLn('response status code: ' + statusCode);
  WriteLn('response status text: ' + resp.StatusText);

  if (statusCode = 201) then
    begin
      WriteLn('Success.');
    end
  else
    begin
      WriteLn('Failed.');
    end;

  //  -------------------------------------------------------------------------------------------------
  //  Upload from a file...

  //  Upload a binar file to a penguins.jpg file in the "mycontainer" container, in the "chilkat" account.
  url2 := 'https://chilkat.blob.core.windows.net/mycontainer/penguins.jpg?sv=2021-06-08&ss=bfqt&srt=sco&sp=rwdlacupiyx&se=2023-02-12T21:30:53Z&st=2023-02-12T13:30:53Z&spr=https&sig=HB8CoZiD7EJD1rQNIVnLl%2Bq7kyLcOCnSXR14TadBv6s%3D';

  http.ClearHeaders();
  http.SetRequestHeader('x-ms-blob-type','BlockBlob');

  //  Upload a JPG file
  success := http.HttpFile('PUT',url2,'c:/qa_data/jpg/penguins.jpg','image/jpeg',resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  statusCode := resp.StatusCode;
  WriteLn('response status code: ' + statusCode);
  WriteLn('response status text: ' + resp.StatusText);

  if (statusCode = 201) then
    begin
      WriteLn('Success.');
    end
  else
    begin
      WriteLn('Failed.');
    end;


  http.Free;
  resp.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.