Roundup #54: Service Provider Validation, Default Interface Members, BFF with ProxyKit, GC Perf

Here are the things that caught my eye recently in .NET.  I’d love to hear what you found most interesting this week.  Let me know in the comments or on Twitter.

ASP.NET Core 3: Service provider validation

In this post I describe the new “validate on build” feature that has been added to ASP.NET Core 3.0. This can be used to detect when your DI service provider is misconfigured. Specifically, the feature detects where you have a dependency on a service that you haven’t registered in the DI container.

Link: https://andrewlock.net/new-in-asp-net-core-3-service-provider-validation/

Default Interface Members, What Are They Good For?

The problem this solves is that if add a new member to an interface, every type that implements that interface will need to provide an implementation for that member. This may not be such a big deal if the interface is in your own code but as with any breaking change, in a library released to the public or other teams it can create a lot of headaches.

Link: https://daveaglick.com/posts/default-interface-members-what-are-they-good-for

Simplifying the BFF with ProxyKit – ASP.NET Core: From 0 to overkill

In this episode, we’ll revise our current backend for frontend implementation, introducing ProxyKit to simplify request routing to backing APIs, foregoing the need to implement everything manually.

Link: https://blog.codingmilitia.com/2019/09/11/aspnet-029-from-zero-to-overkill-simplifying-the-bff-with-proxykit

GC Perf Infrastructure – Part 0

In this blog entry and some future ones I will be showing off functionalities that our new GC perf infrastructure provides. Andy and I have been working on it (he did all the work; I merely played the consultant role). We will be open sourcing it soon and I wanted to give you some examples of using it and you can add these to your repertoire of perf analysis techniques when it’s available.

Link: https://devblogs.microsoft.com/dotnet/gc-perf-infrastructure-part-0/

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