Sending messages to the queue

In this section, we will create a console application that will actually send messages to the queue. To create this application, follow these steps:

1. Create a new console application and name it FlixOne.BookStore.MessageSender using Visual Studio's new project (C#) template:

2. Add the NuGet package Microsoft Azure Service Bus by right-clicking on the project.

3. Write the code to send the message to the queue, and your Program.cs file will contain the following MainAsync() method:

 private static async Task MainAsync()
 {
    const int numberOfMessagesToSend = 10;
    _client = new QueueClient(ConnectionString, QueueName);
    WriteLine("Starting...");
    await SendMessagesAsync(numberOfMessagesToSend);
    WriteLine("Ending...");
    WriteLine("Press any key...");
    ReadKey();
    await _client.CloseAsync();
 }

In the preceding code, we are creating our queue client by providing ConnectionString and QueueName that we have already set in our Azure portal. It calls the SendMessagesAsync() method that accepts a parameter containing the count of the number of messages needed to be sent.

4. Create a SendMessagesAsync() method and add the following code:

private static async Task SendMessagesAsync(int numberOfMessagesToSend)
{
   try
   {
      for (var index = 0; index < numberOfMessagesToSend; index++)
       {
          var customMessage = $"#{index}:
          A message from FlixOne.BookStore.MessageSender.";
          var message = new
          Message(Encoding.UTF8.GetBytes(customMessage));
          WriteLine($"Sending message: {customMessage}");
          await _client.SendAsync(message);
       }
   }
   catch (Exception exception)
   {
      WriteLine($"Weird! It's exception with message:
      {exception.Message}");
   }
}

5. Run the program and wait for a while. You will get the following:

6. Go to the Azure portal and then go to the created queue to check whether it displays a message. The below image is showing overview of flixonequeue where we can see Active Message Count etc.