Dart

Azure Blob Service - List all Containers in a Storage Account

See more Azure Cloud Storage Examples

Azure Storage Blob Service REST API: Lists all the containers in a storage account. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // Azure Blob Service Example: List all of the containers in an account.

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

  final rest = CkRest();

  // Connect to the Azure Storage Blob Service
  final bTls = true;
  final port = 443;
  final bAutoReconnect = true;
  // In this example, the storage account name is "chilkat".
  try {
    rest.connect('chilkat.blob.core.windows.net', port, bTls, bAutoReconnect);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Provide Azure Cloud credentials for the REST call.
  final azAuth = CkAuthAzureStorage();
  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';
  rest.setAuthAzureStorage(azAuth);

  // URI parameters, such as "maxresults", are added by calling AddQueryParam
  rest.addQueryParam('maxresults', '1000');

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

  final String responseStr;
  try {
    responseStr = rest.fullRequestNoBody('GET', '/?comp=list');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // When successful, the Azure Storage service will respond with a 200 response code,
  // with an XML body.  
  if (rest.responseStatusCode != 200) {
    // Examine the request/response to see what happened.
    print('response status code = ${rest.responseStatusCode}');
    print('response status text = ${rest.responseStatusText}');
    print('response header: ${rest.responseHeader}');
    print('response body (if any): $responseStr');
    print('---');
    print('LastRequestStartLine: ${rest.lastRequestStartLine}');
    print('LastRequestHeader: ${rest.lastRequestHeader}');
    return;
  }

  // Load the XML response for parsing.
  // A sample XML response containing 2 containers is shown below.
  final xml = CkXml();
  xml.loadXml(responseStr);

  print(xml.getXml());

  // Iterate over the containers, listing some information about each.
  xml.findChild2('Containers');
  final numContainers = xml.numChildren;
  var i = 0;
  while (i < numContainers) {
    xml.getChild2(i);
    print('Container Name: ${xml.getChildContent('Name')}');
    final lastModDateStr = xml.chilkatPath('Properties|Last-Modified|*');
    print('Last Modified: $lastModDateStr');
    // The date/time string can be loaded into a CkDateTime object for conversion to other date formats..
    final dateTime = CkDateTime();
    dateTime.setFromRfc822(lastModDateStr);

    final leaseState = xml.chilkatPath('Properties|LeaseState|*');
    print('Lease State: $leaseState');

    xml.getParent2();
    i++;
  }

  xml.getParent2();

  // Sample XML response:

  // 	<?xml version="1.0" encoding="utf-8" ?>
  // 	<EnumerationResults ServiceEndpoint="https://chilkat.blob.core.windows.net/">
  // 	    <MaxResults>1000</MaxResults>
  // 	    <Containers>
  // 	        <Container>
  // 	            <Name>test</Name>
  // 	            <Properties>
  // 	                <Last-Modified>Wed, 20 Apr 2016 01:02:25 GMT</Last-Modified>
  // 	                <Etag>"0x8D368B77024C583"</Etag>
  // 	                <LeaseStatus>unlocked</LeaseStatus>
  // 	                <LeaseState>available</LeaseState>
  // 	            </Properties>
  // 	        </Container>
  // 	        <Container>
  // 	            <Name>test2</Name>
  // 	            <Properties>
  // 	                <Last-Modified>Tue, 03 May 2016 17:13:01 GMT</Last-Modified>
  // 	                <Etag>"0x8D373762EB6AC85"</Etag>
  // 	                <LeaseStatus>unlocked</LeaseStatus>
  // 	                <LeaseState>available</LeaseState>
  // 	            </Properties>
  // 	        </Container>
  // 	    </Containers>
  // 	    <NextMarker />
  // 	</EnumerationResults>
}