service-bus-event-hubs-get-started-send-csharp.md

Send messages to Event Hubs

In this section, you'll write a Windows console app that sends events to your Event Hub.

1. In Visual Studio, create a new Visual C# Desktop App project using the Console Application project template. Name the project Sender.

   

2. In Solution Explorer, right-click the solution, and then click Manage NuGet Packages for Solution.

3. Click the Browse tab, then search for Microsoft Azure Service Bus. Ensure that the project name (Sender) is specified in the Version(s) box. Click Install, and accept the terms of use.

   

   Visual Studio downloads, installs, and adds a reference to the Azure Service Bus library NuGet package.

4. Add the following using statements at the top of the Program.cs file:

   using System.Threading;
   using Microsoft.ServiceBus.Messaging;

5. Add the following fields to the Program class, substituting the placeholder values with the name of the Event Hub you created in the previous section, and the namespace-level connection string you saved previously.

   static string eventHubName = "{Event Hub name}";
   static string connectionString = "{send connection string}";

6. Add the following method to the Program class:

   static void SendingRandomMessages()
   {
       var eventHubClient = EventHubClient.CreateFromConnectionString(connectionString, eventHubName);
       while (true)
       {
           try
           {
               var message = Guid.NewGuid().ToString();
               Console.WriteLine("{0} > Sending message: {1}", DateTime.Now, message);
               eventHubClient.Send(new EventData(Encoding.UTF8.GetBytes(message)));
           }
           catch (Exception exception)
           {
               Console.ForegroundColor = ConsoleColor.Red;
               Console.WriteLine("{0} > Exception: {1}", DateTime.Now, exception.Message);
               Console.ResetColor();
           }
   
           Thread.Sleep(200);
       }
   }

   This method continuously sends events to your Event Hub with a 200-ms delay.

7. Finally, add the following lines to the Main method:

   Console.WriteLine("Press Ctrl-C to stop the sender process");
   Console.WriteLine("Press Enter to start now");
   Console.ReadLine();
   SendingRandomMessages();