Aspire.RabbitMQ.Client 9.0.0

Aspire.RabbitMQ.Client library

Registers an IConnection in the DI container for connecting to a RabbitMQ server. Enables corresponding health check, logging and telemetry.

Getting started

Prerequisites

• RabbitMQ server and the server hostname for connecting a client.

Install the package

Install the .NET Aspire RabbitMQ library with NuGet:

dotnet add package Aspire.RabbitMQ.Client

Usage example

In the Program.cs file of your project, call the AddRabbitMQClient extension method to register an IConnection for use via the dependency injection container. The method takes a connection name parameter.

builder.AddRabbitMQClient("messaging");

You can then retrieve the IConnection instance using dependency injection. For example, to retrieve the connection from a Web API controller:

private readonly IConnection _connection;

public ProductsController(IConnection connection)
{
    _connection = connection;
}

Configuration

The .NET Aspire RabbitMQ component provides multiple options to configure the connection based on the requirements and conventions of your project.

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.AddRabbitMQClient():

builder.AddRabbitMQClient("myConnection");

And then the connection string will be retrieved from the ConnectionStrings configuration section:

{
  "ConnectionStrings": {
    "myConnection": "amqp://username:password@localhost:5672"
  }
}

See the ConnectionString documentation for more information on how to format this connection string.

Use configuration providers

The .NET Aspire RabbitMQ component supports Microsoft.Extensions.Configuration. It loads the RabbitMQClientSettings from configuration by using the Aspire:RabbitMQ:Client key. Example appsettings.json that configures some of the options:

{
  "Aspire": {
    "RabbitMQ": {
      "Client": {
        "DisableHealthChecks": true
      }
    }
  }
}

Use inline delegates

Also you can pass the Action<RabbitMQClientSettings> configureSettings delegate to set up some or all the options inline, for example to disable health checks from code:

builder.AddRabbitMQClient("messaging", settings => settings.DisableHealthChecks = true);

You can also setup the ConnectionFactory using the Action<ConnectionFactory> configureConnectionFactory delegate parameter of the AddRabbitMQClient method. For example to set the client provided name for connections:

builder.AddRabbitMQClient("messaging", configureConnectionFactory: factory => factory.ClientProvidedName = "MyApp");

AppHost extensions

In your AppHost project, install the Aspire.Hosting.RabbitMQ library with NuGet:

dotnet add package Aspire.Hosting.RabbitMQ

Then, in the Program.cs file of AppHost, register a RabbitMQ server and consume the connection using the following methods:

var messaging = builder.AddRabbitMQ("messaging");

var myService = builder.AddProject<Projects.MyService>()
                       .WithReference(messaging);

The WithReference method configures a connection in the MyService project named messaging. In the Program.cs file of MyService, the RabbitMQ connection can be consumed using:

builder.AddRabbitMQClient("messaging");

Additional documentation

• https://rabbitmq.github.io/rabbitmq-dotnet-client/
• https://github.com/dotnet/aspire/tree/main/src/Components/README.md

Feedback & contributing

https://github.com/dotnet/aspire