Delphi ActiveX

Azure Storage: Get Blob Service Properties

See more Azure Cloud Storage Examples

Azure Storage Blob Service REST API: Sample code to get a blob's service properties. 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
success: Integer;
rest: TChilkatRest;
bTls: Integer;
port: Integer;
bAutoReconnect: Integer;
azAuth: TChilkatAuthAzureStorage;
responseStr: WideString;
xml: TChilkatXml;

begin
success := 0;

// Azure Blob Service Example: Get Blob Service Properties

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

rest := TChilkatRest.Create(Self);

// Connect to the Azure Storage Blob Service
bTls := 1;
port := 443;
bAutoReconnect := 1;
// In this example, the storage account name is "chilkat".
success := rest.Connect('chilkat.blob.core.windows.net',port,bTls,bAutoReconnect);
if (success <> 1) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

// Provide Azure Cloud credentials for the REST call.
azAuth := TChilkatAuthAzureStorage.Create(Self);
azAuth.AccessKey := 'AZURE_ACCESS_KEY';
// The account name used here should match the 1st part of the domain passed in the call to Connect (above).
azAuth.Account := 'chilkat';
azAuth.Scheme := 'SharedKey';
azAuth.Service := 'Blob';
// This causes the "x-ms-version: 2021-08-06" header to be automatically added.
azAuth.XMsVersion := '2021-08-06';
success := rest.SetAuthAzureStorage(azAuth.ControlInterface);

// Note: The application does not need to explicitly set the following
// headers: x-ms-date, Authorization.  These headers
// are automatically set by Chilkat.

responseStr := rest.FullRequestNoBody('GET','/?restype=service&comp=properties');
if (rest.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

// When successful, the Azure Storage service will respond with a 200 response code,
// with an XML body.  
if (rest.ResponseStatusCode <> 200) then
  begin
    // Examine the request/response to see what happened.
    Memo1.Lines.Add('response status code = ' + IntToStr(rest.ResponseStatusCode));
    Memo1.Lines.Add('response status text = ' + rest.ResponseStatusText);
    Memo1.Lines.Add('response header: ' + rest.ResponseHeader);
    Memo1.Lines.Add('response body (if any): ' + responseStr);
    Memo1.Lines.Add('---');
    Memo1.Lines.Add('LastRequestStartLine: ' + rest.LastRequestStartLine);
    Memo1.Lines.Add('LastRequestHeader: ' + rest.LastRequestHeader);
    Exit;
  end;

// Load the XML response for parsing.
// An example of the response XML is shown below.
xml := TChilkatXml.Create(Self);
success := xml.LoadXml(responseStr);

Memo1.Lines.Add(xml.GetXml());

// Use the ChilkatPath method to get various pieces of information out
// of the XML.  For example:

Memo1.Lines.Add('Logging retention policy #days = ' + xml.ChilkatPath('Logging|RetentionPolicy|Days|*'));
Memo1.Lines.Add('Hour metrics include APIs = ' + xml.ChilkatPath('HourMetrics|IncludeAPIs|*'));

// <?xml version="1.0" encoding="utf-8" ?>
// <StorageServiceProperties>
//     <Logging>
//         <Version>1.0</Version>
//         <Read>true</Read>
//         <Write>true</Write>
//         <Delete>true</Delete>
//         <RetentionPolicy>
//             <Enabled>true</Enabled>
//             <Days>7</Days>
//         </RetentionPolicy>
//     </Logging>
//     <HourMetrics>
//         <Version>1.0</Version>
//         <Enabled>true</Enabled>
//         <IncludeAPIs>true</IncludeAPIs>
//         <RetentionPolicy>
//             <Enabled>true</Enabled>
//             <Days>7</Days>
//         </RetentionPolicy>
//     </HourMetrics>
//     <MinuteMetrics>
//         <Version>1.0</Version>
//         <Enabled>false</Enabled>
//         <RetentionPolicy>
//             <Enabled>false</Enabled>
//         </RetentionPolicy>
//     </MinuteMetrics>
//     <Cors />
// </StorageServiceProperties>
end;