Pascal (Lazarus/Delphi)

Azure File Service: List Shares

See more Azure Cloud Storage Examples

Sample code to list the file shares in an Azure storage account. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.DtObj,
  Chilkat.Rest,
  Chilkat.AuthAzureStorage,
  Chilkat.Xml,
  Chilkat.CkDateTime;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  rest: TRest;
  bTls: Boolean;
  port: Integer;
  bAutoReconnect: Boolean;
  azAuth: TAuthAzureStorage;
  responseStr: string;
  xml: TXml;
  lastMod: TCkDateTime;
  numShares: Integer;
  i: Integer;
  dt: TDtObj;

begin
  success := False;

  //  Azure File Service Example: List all the file shares in a storage account.
  //  See also: https://docs.microsoft.com/en-us/rest/api/storageservices/list-shares

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

  rest := TRest.Create;

  //  Connect to the Azure Storage Blob Service
  bTls := True;
  port := 443;
  bAutoReconnect := True;
  //  In this example, the storage account name is "chilkat".
  success := rest.Connect('chilkat.file.core.windows.net',port,bTls,bAutoReconnect);
  if (success = False) then
    begin
      WriteLn(rest.LastErrorText);
      Exit;
    end;

  //  Provide Azure Cloud credentials for the REST call.
  azAuth := TAuthAzureStorage.Create;
  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 := 'File';
  //  This causes the "x-ms-version: 2021-08-06" header to be automatically added.
  azAuth.XMsVersion := '2021-08-06';
  success := rest.SetAuthAzureStorage(azAuth);

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

  //  Send the GET request to list the shares.
  responseStr := rest.FullRequestNoBody('GET','/?comp=list');
  if (rest.LastMethodSuccess = False) then
    begin
      WriteLn(rest.LastErrorText);
      Exit;
    end;

  //  When successful, the Azure Storage service will respond with a 200 response status code,
  //  with an XML response body.

  if (rest.ResponseStatusCode <> 200) then
    begin
      //  Examine the request/response to see what happened.
      WriteLn('response status code = ' + rest.ResponseStatusCode);
      WriteLn('response status text = ' + rest.ResponseStatusText);
      WriteLn('response header: ' + rest.ResponseHeader);
      WriteLn('response body (if any): ' + responseStr);
      WriteLn('---');
      WriteLn('LastRequestStartLine: ' + rest.LastRequestStartLine);
      WriteLn('LastRequestHeader: ' + rest.LastRequestHeader);
      Exit;
    end;

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

  WriteLn(xml.GetXml());

  //  Here's a sample response:

  //  <?xml version="1.0" encoding="utf-8" ?>
  //  <EnumerationResults ServiceEndpoint="https://chilkat.file.core.windows.net/">
  //      <Shares>
  //          <Share>
  //              <Name>beardie</Name>
  //              <Properties>
  //                  <Last-Modified>Mon, 26 Jun 2017 21:24:57 GMT</Last-Modified>
  //                  <Etag>"0x8D4BCD9CBD872E5"</Etag>
  //                  <Quota>5120</Quota>
  //              </Properties>
  //          </Share>
  //          <Share>
  //              <Name>pip</Name>
  //              <Properties>
  //                  <Last-Modified>Mon, 26 Jun 2017 21:24:44 GMT</Last-Modified>
  //                  <Etag>"0x8D4BCD9C3D823D1"</Etag>
  //                  <Quota>5120</Quota>
  //              </Properties>
  //          </Share>
  //      </Shares>
  //      <NextMarker />
  //  </EnumerationResults>

  //  Let's iterate over the file shares
  lastMod := TCkDateTime.Create;

  numShares := xml.NumChildrenAt('Shares');
  i := 0;
  dt := TDtObj.Create;
  while i < numShares do
    begin
      WriteLn('---- Share ' + i + ' ----');
      xml.I := i;
      WriteLn('Name: ' + xml.GetChildContent('Shares|Share[i]|Name'));
      lastMod.SetFromRfc822(xml.GetChildContent('Shares|Share[i]|Properties|Last-Modified'));
      lastMod.ToDtObj(True,dt);

      WriteLn('Last-Modified YMD: ' + dt.Year + ',' + dt.Month + ',' + dt.Day);
      i := i + 1;
    end;

  //  Output for the above loop:

  //  ---- Share 0 ----
  //  Name: beardie
  //  Last-Modified YMD: 2017,6,26
  //  ---- Share 1 ----
  //  Name: pip
  //  Last-Modified YMD: 2017,6,26
  //  

  WriteLn('Success.');


  rest.Free;
  azAuth.Free;
  xml.Free;
  lastMod.Free;
  dt.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.