Lazarus Pascal

Backblaze S3 Download String

See more Backblaze S3 Examples

Demonstrates how to download a textual object into a string variable.

The Chilkat S3 functions in the HTTP class are compatible with the Backblaze service. However, because of some specific issues, Chilkat v9.5.0.89 or later is needed.

Lazarus Pascal

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.Http;

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

procedure RunDemo;
var
  http: THttp;
  bucketName: string;
  objectName: string;
  charset: string;
  fileContents: string;

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

  http := THttp.Create;

  //  keyID = Access Key ID or Access Key
  http.AwsAccessKey := 'access-key';

  //  applicationKey = Secret Access Key or Secret Key
  http.AwsSecretKey := 'secret-key';

  //  Region is the 2nd part of your S3 Endpoint
  http.AwsEndpoint := 's3.us-west-002.backblazeb2.com';

  bucketName := 'chilkat-test';
  objectName := 'orchard.json';

  //  This is the byte representation of the text file downloaded from Backblaze.
  //  It must be specified to allow Chilkat to correctly interpret the bytes as characters.
  charset := 'utf-8';

  fileContents := http.S3_DownloadString(bucketName,objectName,charset);

  if (http.LastMethodSuccess <> True) then
    begin
      WriteLn(http.LastErrorText);
    end
  else
    begin
      WriteLn(fileContents);
      WriteLn('Success.');
    end;


  http.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.