(MFC) 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++ Libs

See Also: Using MFC CString in Chilkat

#include <CkRest.h>
#include <CkStringBuilder.h>
#include <CkXml.h>

void ChilkatSample(void)
    {
    CkString strOut;

    // 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.
    CkRest rest;
    bool bAutoReconnect = true;
    bool success = rest.Connect("<yournamespace>.servicebus.windows.net",443,true,bAutoReconnect);
    if (success != true) {
        strOut.append(rest.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        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.
    CkStringBuilder sbToken;
    sbToken.LoadFile("qa_data/tokens/serviceBusSas.txt","utf-8");

    // Tell the REST object to use the Azure Shared Access Signature for authorization.
    sbToken.Prepend("SharedAccessSignature ");
    rest.AddHeader("Authorization",sbToken.getAsString());

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

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

    // Create the XML body of the PUT request.
    CkXml xml;
    xml.put_Tag("entry");
    xml.AddAttribute("xmlns","http://www.w3.org/2005/Atom");
    xml.UpdateAttrAt("title",true,"type","text");
    xml.UpdateChildContent("title",subscriptionName);
    xml.UpdateAttrAt("content",true,"type","application/xml");
    xml.UpdateAttrAt("content|SubscriptionDescription",true,"xmlns:i","http://www.w3.org/2001/XMLSchema-instance");
    xml.UpdateAttrAt("content|SubscriptionDescription",true,"xmlns","http://schemas.microsoft.com/netservices/2010/10/servicebus/connect");
    xml.put_EmitXmlDecl(false);
    strOut.append(xml.getXml());
    strOut.append("\r\n");

    // 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>

    CkStringBuilder sbRequestBody;
    xml.GetXmlSb(sbRequestBody);

    // The path should be set to the to-be-created queue name.
    CkStringBuilder sbPath;
    sbPath.Append("/");
    sbPath.Append(topicName);
    sbPath.Append("/Subscriptions/");
    sbPath.Append(subscriptionName);

    CkStringBuilder sbResponseBody;
    success = rest.FullRequestSb("PUT",sbPath.getAsString(),sbRequestBody,sbResponseBody);
    if (success != true) {
        strOut.append(rest.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    strOut.append("Response Status Code = ");
    strOut.appendInt(rest.get_ResponseStatusCode());
    strOut.append("\r\n");

    // Check for a success response.
    if (rest.get_ResponseStatusCode() != 201) {
        strOut.append(rest.lastRequestStartLine());
        strOut.append("\r\n");
        strOut.append(rest.lastRequestHeader());
        strOut.append("\r\n");
        strOut.append(sbResponseBody.getAsString());
        strOut.append("\r\n");
        strOut.append("Failed.");
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // The response is XML.  (See a sample response below..)
    xml.LoadSb(sbResponseBody,true);
    strOut.append(xml.getXml());
    strOut.append("\r\n");

    strOut.append("Success.");
    strOut.append("\r\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>


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }