RabbitMQ Transport

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NuGet Package NServiceBus.RabbitMQ (4.x)
Target NServiceBus Version: 6.x

Provides support for sending messages over RabbitMQ using the RabbitMQ .NET Client.

The transport is not compatible with RabbitMQ broker Versions 3.3.X and below.

Configuring the endpoint

To use RabbitMQ as the underlying transport:


The RabbitMQ transport requires a connection string to connect to the broker. See Connection settings for options on how to provide the connection string.

Routing topology

Routing topologies are used to control how queues, exchanges, and bindings are created on the RabbitMQ broker. If a routing topology is not specified, the transport will default to the ConventionalRoutingTopology.

See the routing topology documentation for further details.

Advantages and Disadvantages


  • RabbitMQ provides native reliability and high-availability features.
  • Offers native Publish-Subscribe mechanism, therefore it doesn't require NServiceBus persistence for storing event subscriptions.
  • Wide range of supported clients allows for integrating the system with applications written in other languages using native RabbitMQ features.
  • Supports Competing consumers pattern out of the box. Messages are received by instances in a round-robin fashion without additional configuration.


  • Doesn't handle network partitions well, partitioning across a WAN requires using dedicated features.
  • Requires careful consideration with regards to duplicate messages, e.g. using the Outbox feature or making all endpoints idempotent.
  • Many organizations don't have the same level of expertise with RabbitMQ, as for example with SQL Server, so it may require additional training.
  • Might require covering additional costs of commercial RabbitMQ license and support.


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