(.NET Core C#) Azure Service Bus - Send Batch of Messages to Topic or Queue

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Shows how to send a batch of messages to a service bus queue or topic.

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// 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.
Chilkat.Rest rest = new Chilkat.Rest();
bool bAutoReconnect = true;
bool success = rest.Connect("<yournamespace>.servicebus.windows.net",443,true,bAutoReconnect);
if (success != true) {
    Debug.WriteLine(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.
Chilkat.StringBuilder sbToken = new Chilkat.StringBuilder();
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());

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

// Send to a topic (or queue) named "gilaMonster";
string topicOrQueueName = "gilaMonster";

// The HTTP request body contains JSON that contains multiple messages.
Chilkat.JsonObject json = new Chilkat.JsonObject();
json.I = 0;
json.UpdateString("messages[i].Body","This is the first message");
json.UpdateString("messages[i].BrokerProperties.Label","M1");
json.UpdateString("messages[i].BrokerProperties.TimeToLiveTimeSpan","0.00:00:40");

json.I = 1;
json.UpdateString("messages[i].Body","This is the second message");
json.UpdateString("messages[i].BrokerProperties.Label","M2");
json.UpdateString("messages[i].UserProperties.Priority","Low");

json.I = 2;
json.UpdateString("messages[i].Body","This is the third message");
json.UpdateString("messages[i].BrokerProperties.Label","M3");
json.UpdateString("messages[i].UserProperties.Priority","Medium");
json.UpdateString("messages[i].UserProperties.Customer","ABC");

Chilkat.JsonArray jsonA = json.ArrayOf("messages");
jsonA.EmitCompact = false;
Debug.WriteLine(jsonA.Emit());

// The following JSON array is produced by the above code:

// 	[
// 	  {
// 	    "Body": "This is the first message",
// 	    "BrokerProperties": {
// 	      "Label": "M1",
// 	      "TimeToLiveTimeSpan": "0.00:00:40"
// 	    }
// 	  },
// 	  {
// 	    "Body": "This is the second message",
// 	    "BrokerProperties": {
// 	      "Label": "M2"
// 	    },
// 	    "UserProperties": {
// 	      "Priority": "Low"
// 	    }
// 	  },
// 	  {
// 	    "Body": "This is the third message",
// 	    "BrokerProperties": {
// 	      "Label": "M3"
// 	    },
// 	    "UserProperties": {
// 	      "Priority": "Medium",
// 	      "Customer": "ABC"
// 	    }
// 	  }
// 	]

Chilkat.StringBuilder sbRequestBody = new Chilkat.StringBuilder();
jsonA.EmitCompact = true;
jsonA.EmitSb(sbRequestBody);

// Build the path..
Chilkat.StringBuilder sbPath = new Chilkat.StringBuilder();
sbPath.Append("/");
sbPath.Append(topicOrQueueName);
sbPath.Append("/messages");

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

// The Content-Type should be "application/vnd.microsoft.servicebus.json"
rest.AddHeader("Content-Type","application/vnd.microsoft.servicebus.json");

Chilkat.StringBuilder sbResponseBody = new Chilkat.StringBuilder();
success = rest.FullRequestSb("POST",sbPath.GetAsString(),sbRequestBody,sbResponseBody);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

Debug.WriteLine("Response Status Code = " + Convert.ToString(rest.ResponseStatusCode));

// Check for a success response.
if (rest.ResponseStatusCode != 201) {
    Debug.WriteLine(rest.LastRequestStartLine);
    Debug.WriteLine(rest.LastRequestHeader);
    Debug.WriteLine(sbResponseBody.GetAsString());
    Debug.WriteLine("Failed.");
    return;
}

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

Debug.WriteLine("Success.");