azure-servicebus-dotnet

name	azure-servicebus-dotnet
description	Azure Service Bus SDK for .NET. Enterprise messaging with queues, topics, subscriptions, and sessions.
type	skill
created	2026-02-27T00:00:00.000Z
domain	cloud-infrastructure
category	azure
risk	unknown
source	community
tags	["skill","cloud-infrastructure","azure","servicebus"]

Azure.Messaging.ServiceBus (.NET)

Enterprise messaging SDK for reliable message delivery with queues, topics, subscriptions, and sessions.

Installation

dotnet add package Azure.Messaging.ServiceBus
dotnet add package Azure.Identity

Current Version: v7.20.1 (stable)

Environment Variables

AZURE_SERVICEBUS_FULLY_QUALIFIED_NAMESPACE=<namespace>.servicebus.windows.net
# Or connection string (less secure)
AZURE_SERVICEBUS_CONNECTION_STRING=Endpoint=sb://...

Authentication

Microsoft Entra ID (Recommended)

using Azure.Identity;
using Azure.Messaging.ServiceBus;

string fullyQualifiedNamespace = "<namespace>.servicebus.windows.net";
await using ServiceBusClient client = new(fullyQualifiedNamespace, new DefaultAzureCredential());

Connection String

string connectionString = "<connection_string>";
await using ServiceBusClient client = new(connectionString);

ASP.NET Core Dependency Injection

services.AddAzureClients(builder =>
{
    builder.AddServiceBusClientWithNamespace("<namespace>.servicebus.windows.net");
    builder.UseCredential(new DefaultAzureCredential());
});

Client Hierarchy

ServiceBusClient
├── CreateSender(queueOrTopicName)      → ServiceBusSender
├── CreateReceiver(queueName)           → ServiceBusReceiver
├── CreateReceiver(topicName, subName)  → ServiceBusReceiver
├── AcceptNextSessionAsync(queueName)   → ServiceBusSessionReceiver
├── CreateProcessor(queueName)          → ServiceBusProcessor
└── CreateSessionProcessor(queueName)   → ServiceBusSessionProcessor

ServiceBusAdministrationClient (separate client for CRUD)

Core Workflows

1. Send Messages

await using ServiceBusClient client = (fullyQualifiedNamespace,  DefaultAzureCredential());
ServiceBusSender sender = client.CreateSender();


ServiceBusMessage message = ();
 sender.SendMessageAsync(message);


 ServiceBusMessageBatch batch =  sender.CreateMessageBatchAsync();
 (batch.TryAddMessage( ServiceBusMessage()))
{
    
}
 (batch.TryAddMessage( ServiceBusMessage()))
{
    
}
 sender.SendMessagesAsync(batch);