C
C
Azure Service Bus - Send Batch of Messages to Topic or Queue
See more Azure Service Bus Examples
Shows how to send a batch of messages to a service bus queue or topic.Chilkat C Downloads
#include <C_CkRest.h>
#include <C_CkStringBuilder.h>
#include <C_CkJsonObject.h>
#include <C_CkJsonArray.h>
void ChilkatSample(void)
{
BOOL success;
HCkRest rest;
BOOL bAutoReconnect;
HCkStringBuilder sbToken;
const char *topicOrQueueName;
HCkJsonObject json;
HCkJsonArray jsonA;
HCkStringBuilder sbRequestBody;
HCkStringBuilder sbPath;
HCkStringBuilder sbResponseBody;
success = FALSE;
// 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));
// ----------------------------------------------------------------------------------------------
// Send to a topic (or queue) named "gilaMonster";
topicOrQueueName = "gilaMonster";
// The HTTP request body contains JSON that contains multiple messages.
json = CkJsonObject_Create();
CkJsonObject_putI(json,0);
CkJsonObject_UpdateString(json,"messages[i].Body","This is the first message");
CkJsonObject_UpdateString(json,"messages[i].BrokerProperties.Label","M1");
CkJsonObject_UpdateString(json,"messages[i].BrokerProperties.TimeToLiveTimeSpan","0.00:00:40");
CkJsonObject_putI(json,1);
CkJsonObject_UpdateString(json,"messages[i].Body","This is the second message");
CkJsonObject_UpdateString(json,"messages[i].BrokerProperties.Label","M2");
CkJsonObject_UpdateString(json,"messages[i].UserProperties.Priority","Low");
CkJsonObject_putI(json,2);
CkJsonObject_UpdateString(json,"messages[i].Body","This is the third message");
CkJsonObject_UpdateString(json,"messages[i].BrokerProperties.Label","M3");
CkJsonObject_UpdateString(json,"messages[i].UserProperties.Priority","Medium");
CkJsonObject_UpdateString(json,"messages[i].UserProperties.Customer","ABC");
jsonA = CkJsonObject_ArrayOf(json,"messages");
CkJsonArray_putEmitCompact(jsonA,FALSE);
printf("%s\n",CkJsonArray_emit(jsonA));
// 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"
// }
// }
// ]
sbRequestBody = CkStringBuilder_Create();
CkJsonArray_putEmitCompact(jsonA,TRUE);
CkJsonArray_EmitSb(jsonA,sbRequestBody);
CkJsonArray_Dispose(jsonA);
// Build the path..
sbPath = CkStringBuilder_Create();
CkStringBuilder_Append(sbPath,"/");
CkStringBuilder_Append(sbPath,topicOrQueueName);
CkStringBuilder_Append(sbPath,"/messages");
// Add timeout and api-version query parameters.
CkRest_AddQueryParam(rest,"timeout","20");
// The Content-Type should be "application/vnd.microsoft.servicebus.json"
CkRest_AddHeader(rest,"Content-Type","application/vnd.microsoft.servicebus.json");
sbResponseBody = CkStringBuilder_Create();
success = CkRest_FullRequestSb(rest,"POST",CkStringBuilder_getAsString(sbPath),sbRequestBody,sbResponseBody);
if (success != TRUE) {
printf("%s\n",CkRest_lastErrorText(rest));
CkRest_Dispose(rest);
CkStringBuilder_Dispose(sbToken);
CkJsonObject_Dispose(json);
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);
CkJsonObject_Dispose(json);
CkStringBuilder_Dispose(sbRequestBody);
CkStringBuilder_Dispose(sbPath);
CkStringBuilder_Dispose(sbResponseBody);
return;
}
// If successful, the 201 response will have no response body.
printf("Success.\n");
CkRest_Dispose(rest);
CkStringBuilder_Dispose(sbToken);
CkJsonObject_Dispose(json);
CkStringBuilder_Dispose(sbRequestBody);
CkStringBuilder_Dispose(sbPath);
CkStringBuilder_Dispose(sbResponseBody);
}