Azure Service Bus namespace, learn more about how to add a Service Bus namespace. Alternatively, you can use a connection string, which is not recommended in production environments.
Install the package
Install the .NET Aspire Azure Service Bus library with NuGet:
In the AppHost.cs file of your project, call the AddAzureServiceBusClient extension method to register a ServiceBusClient for use via the dependency injection container. The method takes a connection name parameter.
builder.AddAzureServiceBusClient("sb");
You can then retrieve the ServiceBusClient instance using dependency injection. For example, to retrieve the client from a Web API controller:
The .NET Aspire Azure Service Bus library provides multiple options to configure the Azure Service Bus connection based on the requirements and conventions of your project. Note that either a Namespace or a ConnectionString is a required to be supplied.
Use a connection string
When using a connection string from the ConnectionStrings configuration section, you can provide the name of the connection string when calling builder.AddAzureServiceBusClient():
And then the connection information will be retrieved from the ConnectionStrings configuration section. Two connection formats are supported:
Fully Qualified Namespace
The recommended approach is to use a fully qualified namespace, which works with the AzureMessagingServiceBusSettings.Credential property to establish a connection. If no credential is configured, the DefaultAzureCredential is used.
The .NET Aspire Azure Service Bus library supports Microsoft.Extensions.Configuration. It loads the AzureMessagingServiceBusSettings and ServiceBusClientOptions from configuration by using the Aspire:Azure:Messaging:ServiceBus key. Example appsettings.json that configures some of the options:
You can also pass the Action<AzureMessagingServiceBusSettings> configureSettings delegate to set up some or all the options inline, for example to configure the health check queue name from code:
You can also setup the ServiceBusClientOptions using the optional Action<IAzureClientBuilder<ServiceBusClient, ServiceBusClientOptions>> configureClientBuilder parameter of the AddAzureServiceBusClient method. For example, to set the client ID for this client:
Then, in the AppHost.cs file of AppHost, add a Service Bus connection and consume the connection using the following methods:
var serviceBus = builder.ExecutionContext.IsPublishMode
? builder.AddAzureServiceBus("sb")
: builder.AddConnectionString("sb");
var myService = builder.AddProject<Projects.MyService>()
.WithReference(serviceBus);
The AddAzureServiceBus method adds an Azure Service Bus Namespace to the builder. Or AddConnectionString can be used to read connection information from the AppHost's configuration (for example, from "user secrets") under the ConnectionStrings:sb config key. The WithReference method passes that connection information into a connection string named sb in the MyService project. In the Program.cs file of MyService, the connection can be consumed using: