Method PublishAsync

PublishAsync(Message, DeliveryOption, Boolean)

This method is used to Publish a message asynchronously in the cache with specified DeliveryOption and the option to notify the publisher if the message has failed to deliver because of expiration, eviction or internal system issue.

Declaration

Task PublishAsync(Message message, DeliveryOption deliverOption, bool notifyDeliveryFailure = false)

Parameters

Type	Name	Description
Message	message	Message to be published
DeliveryOption	deliverOption	Delivery Option
System.Boolean	notifyDeliveryFailure	Is MessageDeliveryFailure event required for this message

Returns

Type	Description
System.Threading.Tasks.Task	Returns task

Examples

The following example demonstrates how to publish message on a topic.

First initialize cache.

Cache cache = NCache.InitializeCache("myCache");

Then get messaging service from cache.

IMessagingService messagingService=cache.MessagingService;

Then get topic from messagingService

ITopic topic=messagingService.GetTopic("mytopic");  
if(topic==null)  //If topic not exists create it.
{
  topic=messagingService.CreateTopic("mytopic");
}

Then publish message on topic.

object payload = "mymessage"; 
Message message = new Message(payload);   //creating message
topic.PublishAsync(message, DeliveryOption.All).ContinueWith(task => 
{
    if (task.Status == TaskStatus.RanToCompletion)
    {
        Console.WriteLine("Message Published Successfully");
    }
    if (task.Status == TaskStatus.Faulted)
    {
        Console.WriteLine("Error has occurred");
    }
    if (task.Exception != null)
    {
        Console.WriteLine(task.Exception);
    }
});