(C) Azure Service Bus - Create Subscription

Creates an Azure Service Bus Subscription.

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

Chilkat C/C++ Library Downloads
MS Visual C/C++ Linux/CentOS C/C++ Alpine Linux C/C++ MAC OS X C/C++	armhf/aarch64 C/C++ C++ Builder iOS C/C++ Android C/C++	Solaris C/C++ MinGW C/C++

#include <C_CkRest.h>
#include <C_CkStringBuilder.h>
#include <C_CkXml.h>

void ChilkatSample(void)
    {
    HCkRest rest;
    BOOL bAutoReconnect;
    BOOL success;
    HCkStringBuilder sbToken;
    const char *topicName;
    const char *subscriptionName;
    HCkXml xml;
    HCkStringBuilder sbRequestBody;
    HCkStringBuilder sbPath;
    HCkStringBuilder sbResponseBody;

    // 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.
    rest = CkRest_Create();
    bAutoReconnect = TRUE;
    success = CkRest_Connect(rest,"<yournamespace>.servicebus.windows.net",443,TRUE,bAutoReconnect);
    if (success != TRUE) {
        printf("%s\n",CkRest_lastErrorText(rest));
        CkRest_Dispose(rest);
        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.
    sbToken = CkStringBuilder_Create();
    CkStringBuilder_LoadFile(sbToken,"qa_data/tokens/serviceBusSas.txt","utf-8");

    // Tell the REST object to use the Azure Shared Access Signature for authorization.
    CkStringBuilder_Prepend(sbToken,"SharedAccessSignature ");
    CkRest_AddHeader(rest,"Authorization",CkStringBuilder_getAsString(sbToken));

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

    // Create a new subscription named "feedings";
    topicName = "gilaMonster";
    subscriptionName = "feedings";

    // Create the XML body of the PUT request.
    xml = CkXml_Create();
    CkXml_putTag(xml,"entry");
    CkXml_AddAttribute(xml,"xmlns","http://www.w3.org/2005/Atom");
    CkXml_UpdateAttrAt(xml,"title",TRUE,"type","text");
    CkXml_UpdateChildContent(xml,"title",subscriptionName);
    CkXml_UpdateAttrAt(xml,"content",TRUE,"type","application/xml");
    CkXml_UpdateAttrAt(xml,"content|SubscriptionDescription",TRUE,"xmlns:i","http://www.w3.org/2001/XMLSchema-instance");
    CkXml_UpdateAttrAt(xml,"content|SubscriptionDescription",TRUE,"xmlns","http://schemas.microsoft.com/netservices/2010/10/servicebus/connect");
    CkXml_putEmitXmlDecl(xml,FALSE);
    printf("%s\n",CkXml_getXml(xml));

    // The XML created by the above code:

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

    sbRequestBody = CkStringBuilder_Create();
    CkXml_GetXmlSb(xml,sbRequestBody);

    // The path should be set to the to-be-created queue name.
    sbPath = CkStringBuilder_Create();
    CkStringBuilder_Append(sbPath,"/");
    CkStringBuilder_Append(sbPath,topicName);
    CkStringBuilder_Append(sbPath,"/Subscriptions/");
    CkStringBuilder_Append(sbPath,subscriptionName);

    sbResponseBody = CkStringBuilder_Create();
    success = CkRest_FullRequestSb(rest,"PUT",CkStringBuilder_getAsString(sbPath),sbRequestBody,sbResponseBody);
    if (success != TRUE) {
        printf("%s\n",CkRest_lastErrorText(rest));
        CkRest_Dispose(rest);
        CkStringBuilder_Dispose(sbToken);
        CkXml_Dispose(xml);
        CkStringBuilder_Dispose(sbRequestBody);
        CkStringBuilder_Dispose(sbPath);
        CkStringBuilder_Dispose(sbResponseBody);
        return;
    }

    printf("Response Status Code = %d\n",CkRest_getResponseStatusCode(rest));

    // Check for a success response.
    if (CkRest_getResponseStatusCode(rest) != 201) {
        printf("%s\n",CkRest_lastRequestStartLine(rest));
        printf("%s\n",CkRest_lastRequestHeader(rest));
        printf("%s\n",CkStringBuilder_getAsString(sbResponseBody));
        printf("Failed.\n");
        CkRest_Dispose(rest);
        CkStringBuilder_Dispose(sbToken);
        CkXml_Dispose(xml);
        CkStringBuilder_Dispose(sbRequestBody);
        CkStringBuilder_Dispose(sbPath);
        CkStringBuilder_Dispose(sbResponseBody);
        return;
    }

    // The response is XML.  (See a sample response below..)
    CkXml_LoadSb(xml,sbResponseBody,TRUE);
    printf("%s\n",CkXml_getXml(xml));

    printf("Success.\n");

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

    // 	<entry xmlns="http://www.w3.org/2005/Atom">
    // 	    <id>https://chilkat.servicebus.windows.net/gilaMonster/Subscriptions/feedings</id>
    // 	    <title type="text">feedings</title>
    // 	    <published>2016-12-07T16:02:24Z</published>
    // 	    <updated>2016-12-07T16:02:24Z</updated>
    // 	    <link rel="self" href="https://chilkat.servicebus.windows.net/gilaMonster/Subscriptions/feedings" />
    // 	    <content type="application/xml">
    // 	        <SubscriptionDescription xmlns="http://schemas.microsoft.com/netservices/2010/10/servicebus/connect" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
    // 	            <LockDuration>PT1M</LockDuration>
    // 	            <RequiresSession>false</RequiresSession>
    // 	            <DefaultMessageTimeToLive>P10675199DT2H48M5.4775807S</DefaultMessageTimeToLive>
    // 	            <DeadLetteringOnMessageExpiration>false</DeadLetteringOnMessageExpiration>
    // 	            <DeadLetteringOnFilterEvaluationExceptions>true</DeadLetteringOnFilterEvaluationExceptions>
    // 	            <MessageCount>0</MessageCount>
    // 	            <MaxDeliveryCount>10</MaxDeliveryCount>
    // 	            <EnableBatchedOperations>true</EnableBatchedOperations>
    // 	        </SubscriptionDescription>
    // 	    </content>
    // 	</entry>


    CkRest_Dispose(rest);
    CkStringBuilder_Dispose(sbToken);
    CkXml_Dispose(xml);
    CkStringBuilder_Dispose(sbRequestBody);
    CkStringBuilder_Dispose(sbPath);
    CkStringBuilder_Dispose(sbResponseBody);

    }