Azure Service Bus SDK for .NET. Enterprise messaging with queues, topics, subscriptions, and sessions. Use for reliable message delivery, pub/sub patterns, dead letter handling, and background processing. Triggers: "Service Bus", "ServiceBusClient", "ServiceBusSender", "ServiceBusReceiver", "ServiceBusProcessor", "message queue", "pub/sub .NET", "dead letter queue".
Azure Service Bus SDK for .NET. Enterprise messaging with queues, topics, subscriptions, and sessions. Use for reliable message delivery, pub/sub patterns, dead letter handling, and background processing. Triggers: "Service Bus", "ServiceBusClient", "ServiceBusSender", "ServiceBusReceiver", "ServiceBusProcessor", "message queue", "pub/sub .NET", "dead letter queue".
AZURE_SERVICEBUS_FULLY_QUALIFIED_NAMESPACE=<namespace>.servicebus.windows.net # Required: Service Bus fully qualified namespace
AZURE_TOKEN_CREDENTIALS=prod # Required only if DefaultAzureCredential is used in production
AZURE_SERVICEBUS_CONNECTION_STRING=Endpoint=sb://... # Alternative to Entra ID auth
ServiceBusReceiver receiver = client.CreateReceiver("my-queue");
// Single message
ServiceBusReceivedMessage message = await receiver.ReceiveMessageAsync();
string body = message.Body.ToString();
Console.WriteLine(body);
// Complete the message (removes from queue)await receiver.CompleteMessageAsync(message);
// Batch receive
IReadOnlyList<ServiceBusReceivedMessage> messages = await receiver.ReceiveMessagesAsync(maxMessages: 10);
foreach (var msg in messages)
{
Console.WriteLine(msg.Body.ToString());
await receiver.CompleteMessageAsync(msg);
}
3. Message Settlement
// Complete - removes message from queueawait receiver.CompleteMessageAsync(message);
// Abandon - releases lock, message can be received againawait receiver.AbandonMessageAsync(message);
// Defer - prevents normal receive, use ReceiveDeferredMessageAsyncawait receiver.DeferMessageAsync(message);
// Dead Letter - moves to dead letter subqueueawait receiver.DeadLetterMessageAsync(message, "InvalidFormat", "Message body was not valid JSON");
