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(Objective-C) Azure Service Bus - Create Topic

Creates an Azure Service Bus Topic.

Note: This example requires Chilkat v9.5.0.65 or greater.

Chilkat Objective-C Library Downloads

MAC OS X (Cocoa) Libs

iOS Libs

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

//  Note: Requires Chilkat v9.5.0.65 or greater.

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

//  Make the initial connection.
//  A single REST object, once connected, can be used for many Azure Service Bus REST API calls.
//  The auto-reconnect indicates that if the already-established HTTPS connection is closed,
//  then it will be automatically re-established as needed.
CkoRest *rest = [[CkoRest alloc] init];
BOOL bAutoReconnect = YES;
BOOL success = [rest Connect: @"<yournamespace>.servicebus.windows.net" port: [NSNumber numberWithInt: 443] tls: YES autoReconnect: bAutoReconnect];
if (success != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

//  ----------------------------------------------------------------------------------------------
//  The code above this comment could be placed inside a function/subroutine within the application
//  because the connection does not need to be made for every request.  Once the connection is made
//  the app may send many requests..
//  ----------------------------------------------------------------------------------------------

//  Let's load a previously computed SAS token and use it.
//  See Azure Shared Access Signature for an example to genenerate an Azure SAS token.
CkoStringBuilder *sbToken = [[CkoStringBuilder alloc] init];
[sbToken LoadFile: @"qa_data/tokens/serviceBusSas.txt" charset: @"utf-8"];

//  Tell the REST object to use the Azure Shared Access Signature for authorization.
[sbToken Prepend: @"SharedAccessSignature "];
[rest AddHeader: @"Authorization" value: [sbToken GetAsString]];

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

//  Create a new topic named "gilaMonster";
NSString *topicName = @"gilaMonster";

//  Create the XML body of the PUT request.
CkoXml *xml = [[CkoXml alloc] init];
xml.Tag = @"entry";
[xml AddAttribute: @"xmlns" value: @"http://www.w3.org/2005/Atom"];
[xml UpdateAttrAt: @"title" autoCreate: YES attrName: @"type" attrValue: @"text"];
[xml UpdateChildContent: @"title" value: topicName];
[xml UpdateAttrAt: @"content" autoCreate: YES attrName: @"type" attrValue: @"application/xml"];
[xml UpdateAttrAt: @"content|TopicDescription" autoCreate: YES attrName: @"xmlns:i" attrValue: @"http://www.w3.org/2001/XMLSchema-instance"];
[xml UpdateAttrAt: @"content|TopicDescription" autoCreate: YES attrName: @"xmlns" attrValue: @"http://schemas.microsoft.com/netservices/2010/10/servicebus/connect"];
xml.EmitXmlDecl = NO;
NSLog(@"%@",[xml GetXml]);

//  The XML created by the above code:

//  	<entry xmlns="http://www.w3.org/2005/Atom">
//  	    <title type="text">gilaMonster</title>
//  	    <content type="application/xml">
//  	        <TopicDescription xmlns:i="http://www.w3.org/2001/XMLSchema-instance"
//  			xmlns="http://schemas.microsoft.com/netservices/2010/10/servicebus/connect" />
//  	    </content>
//  	</entry>

CkoStringBuilder *sbRequestBody = [[CkoStringBuilder alloc] init];
[xml GetXmlSb: sbRequestBody];

//  The path should be set to the to-be-created queue name.
CkoStringBuilder *sbPath = [[CkoStringBuilder alloc] init];
[sbPath Append: @"/"];
[sbPath Append: topicName];

CkoStringBuilder *sbResponseBody = [[CkoStringBuilder alloc] init];
success = [rest FullRequestSb: @"PUT" uriPath: [sbPath GetAsString] requestBody: sbRequestBody responseBody: sbResponseBody];
if (success != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

NSLog(@"%@%d",@"Response Status Code = ",[rest.ResponseStatusCode intValue]);

//  Check for a success response.
if ([rest.ResponseStatusCode intValue] != 201) {
    NSLog(@"%@",rest.LastRequestStartLine);
    NSLog(@"%@",rest.LastRequestHeader);
    NSLog(@"%@",[sbResponseBody GetAsString]);
    NSLog(@"%@",@"Failed.");
    return;
}

//  The response is XML.  (See a sample response below..)
[xml LoadSb: sbResponseBody autoTrim: YES];
NSLog(@"%@",[xml GetXml]);

NSLog(@"%@",@"Success.");

//  -----------------------------------------------
//  A sample successful XML response:

//  	<entry xmlns="http://www.w3.org/2005/Atom">
//  	    <id>https://chilkat.servicebus.windows.net/gilaMonster</id>
//  	    <title type="text">gilaMonster</title>
//  	    <published>2016-12-06T23:34:13Z</published>
//  	    <updated>2016-12-06T23:34:13Z</updated>
//  	    <author>
//  	        <name>chilkat</name>
//  	    </author>
//  	    <link rel="self" href="https://chilkat.servicebus.windows.net/gilaMonster" />
//  	    <content type="application/xml">
//  	        <TopicDescription xmlns="http://schemas.microsoft.com/netservices/2010/10/servicebus/connect" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
//  	            <DefaultMessageTimeToLive>P10675199DT2H48M5.4775807S</DefaultMessageTimeToLive>
//  	            <MaxSizeInMegabytes>1024</MaxSizeInMegabytes>
//  	            <RequiresDuplicateDetection>false</RequiresDuplicateDetection>
//  	            <DuplicateDetectionHistoryTimeWindow>PT10M</DuplicateDetectionHistoryTimeWindow>
//  	            <EnableBatchedOperations>true</EnableBatchedOperations>
//  	            <SizeInBytes>0</SizeInBytes>
//  	            <CreatedAt>2016-12-06T23:34:13.483</CreatedAt>
//  	            <UpdatedAt>2016-12-06T23:34:13.7</UpdatedAt>
//  	        </TopicDescription>
//  	    </content>
//  	</entry>
 

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