I’ve provided some examples in the diagram such as MassTransit Consumers, SignalR Hubs, CQRS services (eg. This layer could be further split into Domain Services and Application Services, but for simplicity we will just leave them as the Middle layer for now. Middle: This layer houses services that contain implementation for our contracts. This should be done in another (more outer) layer. There should be no business logic or type verification. NET Framework, nothing else.Ĭentre: This layer will typically contain our Contracts (Interfaces) and Domain Models or POCO (for ORM). So for example the Contracts and Domain Models should really only reference. One important concept is that layers can only have dependencies on their current layer, or more Inner Layers (or external nuget dependencies if necessary). ![]() Onion Architecture Approach (Quickly Explained) However I will be writing more tutorials, and when they get more complex, this organizational architecture will help keep things concise, and should (I hope) make it easier for the reader (you) to follow along. The onion architecture might seem like overkill to use for the simple example of the Starter Kit. I like to construct my projects roughly following Jeffery Palermo’s Onion Architecture. This is a learning process for both you and me, and I want to give the best and most accurate advice. So I’ll be making some Starter Kits available on Github to help provide an equal and familiar starting point for my tutorials. ![]() I want to write more SOA+MassTransit tutorials covering a wide range of scenarios for scalable and robust web applications, but I need a good jumping off point for the reader and myself to start from. I recommend looking at the Shopping Cart sample and my complimentary post. Chris has done a great job providing Samples for simple and complex use cases with MassTransit.
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