RabbitMQ

PM> Install-Package Shuttle.Esb.RabbitMQ

This RabbitMQ implementation follows the at-least-once delivery mechanism supported by Shuttle.Esb.

If necessary you may want to use an outbox for a store-and-forward solution. By using a transactional outbox such as the Shuttle.Esb.Sql.Queue implementation you could roll back sending of messages on failure.

Installation

If you need to install RabbitMQ you can follow these instructions.

Configuration

The URI structure is rabbitmq://configuration-name/queue-name.

services.AddRabbitMQ(builder =>
{
    builder.AddOptions("local", new RabbitMQOptions
    {
        Host = "localhost",
        VirtualHost = "/",
        Port = -1,
        Username = "shuttle",
        Password = "shuttle!",
        PrefetchCount = 25,
        QueueTimeout = TimeSpan.FromMilliseconds(25),
        RequestedHeartbeat = TimeSpan.FromSeconds(30),
        ConnectionCloseTimeout = TimeSpan.FromSeconds(1),
        OperationRetryCount = 3,
        UseBackgroundThreadsForIO = true,
        Priority = 0,
        Persistent = true,
        Durable = true
    });
});

The default JSON settings structure is as follows:

{
  "Shuttle": {
    "RabbitMQ": {
      "local": {
        "Host": "localhost",
        "VirtualHost": "/",
        "Port": -1,
        "Username": "shuttle",
        "Password": "shuttle!",
        "PrefetchCount": 25,
        "QueueTimeout": "00:00:25",
        "RequestedHeartbeat": "00:00:30",
        "ConnectionCloseTimeout": "00:00:01",
        "OperationRetryCount": 3,
        "UseBackgroundThreadsForIO": true,
        "Priority": 0,
        "Persistent": true,
        "Durable": true
      }
    }
  }
}

Options

Option	Default	Description
Host		The RabbitMQ host to connect to.
VirtualHost	"/"	The virtual host to connect to.
Port	-1	Specifies the port to connect to. A value of -1 represents AmqpTcpEndpoint.UseDefaultPort.
Username		The username to send as a credential.
Password		The password to send as a credential.
PrefetchCount	25	Specifies the number of messages to prefetch from the queue.
QueueTimeout	00:00:25	How long to wait when retrieving a message from the queue before timing out and returing null.
RequestedHeartbeat	00:00:30	Heartbeat timeout to use when negotiating with the server.
ConnectionCloseTimeout	00:00:01	The duration to wait wait for connections to be closed.
OperationRetryCount	3	How many times to retry relevant queue operations in the event that they fail. Once the retries have run out the original exception is thrown.
UseBackgroundThreadsForIO	true	Determines whether backgrounds threads are used for the I/O loop.
Priority	0	Determines the number of priorities (x-max-priority) supported by the queue.
Persistent	true	Determines whether messages will be persisted. Please be sure of the possible consequences before setting to 'false'.
Durable	true	Determines whether the queue is durable. Please be sure of the possible consequences before setting to 'false'.