This example is loosely based on how the API looks for aggregates in Axon Framework. We also base some of the code around examples of ValidationBehavior found online. Stackoverflow CodeMaze The reason why I’ve implemented these examples is in order to showcase how you can cut down on some of the ceremony around using a generic mediator interface implementation togheter with fluent validation logic (pipeline behavior in MediatR parlance). Note that I’m not making a value judgement around if you sh[...]