(Objective-C) Azure Storage: Get Blob Service Stats

Azure Storage Blob Service REST API: Sample code to get Blob Service Stats

Chilkat Objective-C Library Downloads MAC OS X (Cocoa) Libs iOS Libs

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

// Azure Blob Service Example: Get Blob Service Stats

// 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".
// ---- IMPORTANT ----
// The "-secondary" suffix is required.
// This requires an Azure storage account with replication set to "Read-access geo-redundant storage (RA-GRS)"
// If you made the change just prior to testing this example, you'll need to give it time for the 
// DNS to become available..  
// ---- IMPORTANT ----
BOOL success = [rest Connect: @"chilkat-secondary.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: 2020-08-04" header to be automatically added.
azAuth.XMsVersion = @"2020-08-04";
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=stats"];
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(@"%@%@",@"Status = ",[xml ChilkatPath: @"GeoReplication|Status|*"]);
NSString *lastSyncTimeStr = [xml ChilkatPath: @"GeoReplication|LastSyncTime|*"];
NSLog(@"%@%@",@"LastSyncTime = ",lastSyncTimeStr);

// The date/time string can be loaded into a CkDateTime object for 
// access to individual parts, or conversion to other formats.
CkoDateTime *dateTime = [[CkoDateTime alloc] init];
success = [dateTime SetFromRfc822: lastSyncTimeStr];

// For example:
BOOL bLocalTime = YES;
CkoDtObj *dt = [dateTime GetDtObj: bLocalTime];
NSLog(@"%d%@%d%@%d",[dt.Year intValue],@"/",[dt.Month intValue],@"/",[dt.Day intValue]);

// <StorageServiceStats>
//     <GeoReplication>
//         <Status>live</Status>
//         <LastSyncTime>Tue, 03 May 2016 23:57:54 GMT</LastSyncTime>
//     </GeoReplication>
// </StorageServiceStats>