Azure: How to move messages from poison queue to back to main queue?

Question

I\'m wondering if there is a tool or lib that can move messages between queues? Currently, i\'m doing something like below

public static void ProcessQueueMes         


        

Answer 1

Here's an updated version of Mitch's answer, using the latest Microsoft.Azure.Storage.Queue package. Simply create a new .NET Console application, add the above-mentioned package to it, and replace the contents of Program.cs with the following:

using Microsoft.Azure.Storage;
using Microsoft.Azure.Storage.Queue;
using System.Threading.Tasks;

namespace PoisonMessageDequeuer
{
    class Program
    {
        static async Task Main(string[] args)
        {
            const string queuename = "MyQueueName";

            string storageAccountString = "xxx";

            await RetryPoisonMesssages(storageAccountString, queuename);
        }

        private static async Task RetryPoisonMesssages(string storageAccountString, string queuename)
        {
            var targetqueue = GetCloudQueueRef(storageAccountString, queuename);
            var poisonqueue = GetCloudQueueRef(storageAccountString, queuename + "-poison");

            var count = 0;
            while (true)
            {
                var msg = await poisonqueue.GetMessageAsync();
                if (msg == null)
                    break;

                await poisonqueue.DeleteMessageAsync(msg);
                await targetqueue.AddMessageAsync(msg);
                
                count++;
            }

            return count;
        }

        private static CloudQueue GetCloudQueueRef(string storageAccountString, string queuename)
        {
            var storageAccount = CloudStorageAccount.Parse(storageAccountString);
            var queueClient = storageAccount.CreateCloudQueueClient();
            var queue = queueClient.GetQueueReference(queuename);

            return queue;
        }
    }
}

It's still pretty slow if you're working with >1000 messages though, so I'd recommend looking into batch APIs for higher quantities.