Interface life-cycles

Each Endpoint Instance goes through a series of events as it is configured, constructed, started and stoppped. NServiceBus provides extension points that allow to execute code at specific stages of the Instance life-cycle.

The most common life-cycle extension points include:

  • Initialization: Called when the endpoint is first created. Extensions added to this part of the life-cycle typically contribute to the configuration of the endpoint.
  • Before Configuration Finalized: Called just before the configuration is made read-only and the endpoint is started. Extensions added to this part of the life-cycle are usually last minute checks or tweaks to other parts of endpoint configuration.
  • Endpoint Instance Started/Stopped: Called after the endpoint has been started and before it is stopped. In Version 6 and above, these extension points have been moved to the hosts. For self-hosted endpoints, call the desired code directly after starting and before stopping the endpoint rather than relying on explicit NServiceBus extension points.

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