(Delphi DLL) 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.

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: HCkHttp;
bucketName: PWideChar;
objectName: PWideChar;
charset: PWideChar;
fileContents: PWideChar;

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

http := CkHttp_Create();

// keyID = Access Key ID or Access Key
CkHttp_putAwsAccessKey(http,'access-key');

// applicationKey = Secret Access Key or Secret Key
CkHttp_putAwsSecretKey(http,'secret-key');

// Region is the 2nd part of your S3 Endpoint
CkHttp_putAwsEndpoint(http,'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 := CkHttp__s3_DownloadString(http,bucketName,objectName,charset);

if (CkHttp_getLastMethodSuccess(http) <> True) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
  end
else
  begin
    Memo1.Lines.Add(fileContents);
    Memo1.Lines.Add('Success.');
  end;

CkHttp_Dispose(http);

end;