(Delphi DLL) OSS Download String (Alibaba Cloud)

See more Alibaba Cloud OSS Examples

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

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();

// Insert your AccessKey ID here:
CkHttp_putAwsAccessKey(http,'access-key');

// Insert your AccessKey Secret here:
CkHttp_putAwsSecretKey(http,'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
CkHttp_putAwsEndpoint(http,'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 := 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;