Delphi ActiveX

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.

Delphi ActiveX

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

...

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

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

http := TChilkatHttp.Create(Self);

// 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 <> 1) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
  end
else
  begin
    Memo1.Lines.Add(fileContents);
    Memo1.Lines.Add('Success.');
  end;
end;