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My new book ASP.NET Core in Action, Third Edition is available now! It supports .NET 7.0, and is available as an eBook or paperback.

How to automatically choose a free port in ASP.NET Core 3.0
In this post I show how to tell ASP.NET Core to use a random free port on startup, instead of a static value. I also show how to retrieve the value.…

Accessing route values in endpoint middleware in ASP.NET Core 3.0
In this post I describe how you can access the route values from middleware when using endpoint routing in ASP.NET Core 3.0.…

Creating an endpoint from multiple middleware in ASP.NET Core 3.x
In this post I show how you can create a composite endpoint in ASP.NET Core 3.x, by combining multiple middleware into a pipeline as your endpoint.…

Inserting middleware between UseRouting() and UseEndpoints() as a library author - Part 2
In this post I show how, as a library author, you can insert middleware into a consumer's pipeline between the call to UseRouting and UseEndpoints.…

Inserting middleware between UseRouting() and UseEndpoints() as a library author - Part 1
In this post I show how, as a library author, you can insert middleware into a consumer's pipeline between the call to UseRouting and UseEndpoints.…

Converting a terminal middleware to endpoint routing in ASP.NET Core 3.0
Upgrading to ASP.NET Core 3.0 - Part 4
In this post I provide an overview of the new endpoint routing system, and show how you can use it to create endpoints using middleware…

