queue_reader.cs

var connectionString = "<your connectionstring that you won't be hardcoding like this>";
var queueName = "ProductsUpdate";
var deadLetterQueueName = QueueClient.FormatDeadLetterPath(queueName); // We'll get back to this in a bit

var client = QueueClient.CreateFromConnectionString(connectionString, queueName);

client.OnMessage(message =>
{
    var updateRequest = message.GetBody<UpdateProductsRequest>();
    productsService.updateInventoryProducts(updateRequest);
});