(Delphi ActiveX) OSS Download String (Alibaba Cloud)

See more Alibaba Cloud OSS Examples

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

The Chilkat S3 functions in the HTTP class are compatible with Alibaba Cloud's OSS service.

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

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);

// Insert your AccessKey ID here:
http.AwsAccessKey := 'access-key';

// Insert your AccessKey Secret here:
http.AwsSecretKey := 'secret-key';

// To download from a bucket located in a different region, use the endpoint for that region, such as "oss-cn-hangzhou.aliyuncs.com 	"
// See Alibaba Object Storage Service Regions and Endpoints
http.AwsEndpoint := 'oss-us-east-1.aliyuncs.com';

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

// This is the byte representation of the text file downloaded from Aliyun.
// 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;