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(Delphi ActiveX) S3 Download Specific Version of FileDemonstrates how to download a file from the Amazon S3 service using the versionId query parameter. Note: This example requires Chilkat v9.5.0.89 or later. (A problem regarding AwsSubResources w/ downloads was fixed shortly after the v9.5.0.88 release.)
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; localFilePath: WideString; success: Integer; begin // This requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. http := TChilkatHttp.Create(Self); http.AwsAccessKey := 'AWS_ACCESS_KEY'; http.AwsSecretKey := 'AWS_SECRET_KEY'; http.AwsRegion := 'us-east-1'; http.AwsEndpoint := 's3.amazonaws.com'; http.AwsSubResources := 'versionId=x8UPzRsgskmbe55lEQvhLi25PQl2lcFH'; bucketName := 'chilkat100'; objectName := 'frenchUtf8.txt'; localFilePath := 'qa_output/frenchUtf8.txt'; success := http.S3_DownloadFile(bucketName,objectName,localFilePath); if (success <> 1) then begin Memo1.Lines.Add(http.LastErrorText); end else begin Memo1.Lines.Add('File downloaded.'); end; end; |
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