Objective-C

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. Objective-C

#import <CkoRest.h>
#import <CkoAuthAzureStorage.h>
#import <NSString.h>
#import <CkoXml.h>

BOOL success = NO;

//  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.

CkoRest *rest = [[CkoRest alloc] init];

//  Connect to the Azure Storage Blob Service
BOOL bTls = YES;
int port = 443;
BOOL bAutoReconnect = YES;
//  In this example, the storage account name is "chilkat".
success = [rest Connect: @"chilkat.blob.core.windows.net" port: [NSNumber numberWithInt: port] tls: bTls autoReconnect: bAutoReconnect];
if (success != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

//  Provide Azure Cloud credentials for the REST call.
CkoAuthAzureStorage *azAuth = [[CkoAuthAzureStorage alloc] init];
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];

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

NSString *responseStr = [rest FullRequestNoBody: @"GET" uriPath: @"/?restype=service&comp=properties"];
if (rest.LastMethodSuccess != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

//  When successful, the Azure Storage service will respond with a 200 response code,
//  with an XML body.  
if ([rest.ResponseStatusCode intValue] != 200) {
    //  Examine the request/response to see what happened.
    NSLog(@"%@%d",@"response status code = ",[rest.ResponseStatusCode intValue]);
    NSLog(@"%@%@",@"response status text = ",rest.ResponseStatusText);
    NSLog(@"%@%@",@"response header: ",rest.ResponseHeader);
    NSLog(@"%@%@",@"response body (if any): ",responseStr);
    NSLog(@"%@",@"---");
    NSLog(@"%@%@",@"LastRequestStartLine: ",rest.LastRequestStartLine);
    NSLog(@"%@%@",@"LastRequestHeader: ",rest.LastRequestHeader);
    return;
}

//  Load the XML response for parsing.
//  An example of the response XML is shown below.
CkoXml *xml = [[CkoXml alloc] init];
success = [xml LoadXml: responseStr];

NSLog(@"%@",[xml GetXml]);

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

NSLog(@"%@%@",@"Logging retention policy #days = ",[xml ChilkatPath: @"Logging|RetentionPolicy|Days|*"]);
NSLog(@"%@%@",@"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>