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AsyncAPI–ASP.NET Core integration

AsyncAPI is an open source initiative with as goal to document event-driven architectures in a similar that OpenAPI documents REST APIs. If you want to get a good introduction chec k out my previous posts about AsyncAPI:

Today I want to talk about that allows you to integrate an AsyncAPI more easily into your ASP.NET Core application; Neuroglia AsyncAPI.

Let me walk you through a small example I created.

  • First add the following nuget package to your ASP.NET Core project:
    • Neuroglia.AsyncApi.AspNetCore.UI
  • Now we can register the necessary configuration:
  • Notice in the code above that I’m referring to an OrdersController class. This ASP.NET core controller publishes an event to create a new order:
  • The library scans the provided class to find specific attributes to build up the AsyncAPI schema. We also need to register the necessary middleware:
  • If we now run the application and browse to the asyncapi endpoint, you can see the AsyncAPI information:

Remark: Be aware that to make this work you need to enable RazorPages (which is not mentioned in the documentation):

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