(Unicode C++) Azure Service Bus - Send Message to Queue

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Demonstrates sending a message to an Azure Service Bus Queue.

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#include <CkRestW.h>
#include <CkStringBuilderW.h>
#include <CkJsonObjectW.h>

void ChilkatSample(void)
    {
    // 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.
    CkRestW rest;
    bool bAutoReconnect = true;
    bool success = rest.Connect(L"<yournamespace>.servicebus.windows.net",443,true,bAutoReconnect);
    if (success != true) {
        wprintf(L"%s\n",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.
    CkStringBuilderW sbToken;
    sbToken.LoadFile(L"qa_data/tokens/serviceBusSas.txt",L"utf-8");

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

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

    // Send to a queue named "gila";
    const wchar_t *queueName = L"gila";

    // The HTTP request body contains the content of the message sent to the queue.
    CkStringBuilderW sbRequestBody;
    sbRequestBody.Append(L"Hello, I'm a gila monster, and I may bite!");

    // Build the path..
    CkStringBuilderW sbPath;
    sbPath.Append(L"/");
    sbPath.Append(queueName);
    sbPath.Append(L"/messages");

    // Add timeout and api-version query parameters.
    rest.AddQueryParam(L"timeout",L"20");
    rest.AddQueryParam(L"api-version",L"2013-08");

    // Standard brokered message properties are placed in a BrokerProperties HTTP header. 
    // The broker properties must be serialized in JSON format. To specify a TimeToLive value of 3600 seconds 
    // and to add a message label "M1" to the message..
    CkJsonObjectW json;
    json.AppendInt(L"TimeToLive",3600);
    json.AppendString(L"Label",L"M1");
    rest.AddHeader(L"BrokerProperties",json.emit());

    // To add custom properties, such as "Priority" and "Color"
    rest.AddHeader(L"Priority",L"High");
    rest.AddHeader(L"Customer",L"12345");

    CkStringBuilderW sbResponseBody;
    success = rest.FullRequestSb(L"POST",sbPath.getAsString(),sbRequestBody,sbResponseBody);
    if (success != true) {
        wprintf(L"%s\n",rest.lastErrorText());
        return;
    }

    wprintf(L"Response Status Code = %d\n",rest.get_ResponseStatusCode());

    // Check for a success response.
    if (rest.get_ResponseStatusCode() != 201) {
        wprintf(L"%s\n",rest.lastRequestStartLine());
        wprintf(L"%s\n",rest.lastRequestHeader());
        wprintf(L"%s\n",sbResponseBody.getAsString());
        wprintf(L"Failed.\n");
        return;
    }

    // If successful, the 201 response will have no response body.

    wprintf(L"Success.\n");
    }