Async, middleware, and EF Core fixes
A varied set of .NET reads on async pitfalls, middleware, EF Core query tuning, REST API design, GitHub Actions, and core C# concepts.
Jasen's top three picks
- 1 Adding Multiple Authentication Types to Swagger in .NET Web API
medium.com
Swagger auth setup is a useful one for teams exposing multiple schemes.
- 2 Structural Patterns in .NET C#: Composing objects for modern applications
levelup.gitconnected.com
A nice reminder that async/await still trips up experienced developers.
- 3 Top 5 Mistakes .NET Developers Make When Using async and await
c-sharpcorner.com
The EF Core 10x query win is the kind of small change people should benchmark.
Editor's note
I pulled together a very mixed issue this time: practical API work, performance, and a few fundamentals. The EF Core query optimization piece and the middleware guides stand out because they solve problems most teams hit quickly. There’s also solid coverage of async mistakes and API documentation, which should help sharpen everyday work.
Today's articles
Adding Multiple Authentication Types to Swagger in .NET Web API
medium.com
https://medium.com/@rajput.shubh2510/adding-multiple-authentication-types-to-swagger-in-net-web-api-7114f9be8153?source=rss------dotnet-5
Topics: ASP.NET Core Authentication REST API
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Structural Patterns in .NET C#: Composing objects for modern applications
levelup.gitconnected.com
https://levelup.gitconnected.com/structural-patterns-in-net-c-composing-objects-for-modern-applications-355bda5e2887
Topics: C# Design Patterns
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Top 5 Mistakes .NET Developers Make When Using async and await
c-sharpcorner.com
https://www.c-sharpcorner.com/blogs/top-5-mistakes-net-developers-make-when-using-async-and-await
Topics: C# Performance
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What is iisreset?
medium.com
https://medium.com/@nirbhaysingh281/what-is-iisreset-378c0effb75d
Topics: .NET Framework
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Async Programming in .NET using C# -A Complete Developer’s Guide-Part II
medium.com
https://medium.com/@bhargavkoya56/async-programming-in-net-using-c-a-complete-developers-guide-part-ii-e72a17ea8527
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I Removed Just One Include() in EF Core and Boosted Queries by 10x
medium.com
https://medium.com/@joshiabhi777/i-removed-just-one-include-in-ef-core-and-boosted-queries-by-10x-618a3f5abd50
Topics: .NET Core EF Core Performance
Read articleHow to Collaboratively Work with SQL Server 2025, Visual Studio Code, and GitHub Copilot (Step-by-Step Guide)
c-sharpcorner.com
https://www.c-sharpcorner.com/article/how-to-collaboratively-work-with-sql-server-2025-visual-studio-code-and-github/
Topics: GitHub Copilot SQL Server Visual Studio Code
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Dotnet: All you need to know about middlewares
ravindradevrani.medium.com
https://ravindradevrani.medium.com/dotnet-all-you-need-to-know-about-middlewares-50b4c7200bb0
Topics: ASP.NET Core .NET Core Web API
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Learn LINQ in C# — A Complete Guide with Examples and Challenges
medium.com
https://medium.com/@fahimshahariar.fs/learn-linq-in-c-a-complete-guide-with-examples-and-challenges-d514e8f21902
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Middleware in .NET Core: The Power Behind the Pipeline
csjob.medium.com
https://csjob.medium.com/middleware-in-net-core-the-power-behind-the-pipeline-232a02207942
Topics: ASP.NET Core .NET Core
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Let’s Ditch the Async Suffix in C#
medium.com
https://medium.com/@vosarat1995/lets-ditch-the-async-suffix-in-c-a5f028183e6a
Topics: C# Performance
Read articleThe Top Challenges of Using Generative AI
c-sharpcorner.com
https://www.c-sharpcorner.com/article/the-top-challenges-of-using-generative-ai/
Topics: ML.NET OpenAI Semantic Kernel
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Float, Double, Decimal in C#: Which One Should You Use?
medium.com
https://medium.com/@nagarajvela/float-double-decimal-in-c-which-one-should-you-use-3131ec7e2011
Topics: C# Performance
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10 C# Secrets That Will Change How You See Programming Forever
medium.com
https://medium.com/@krativarshney7/10-c-secrets-that-will-change-how-you-see-programming-forever-23bc9f2b8696
Topics: C# Design Patterns
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Automatically Rerun Failed GitHub Actions Workflows
meziantou.net
https://www.meziantou.net/automatically-rerun-failed-github-actions-workflows.htm
Topics: GitHub GitHub Actions
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Master API Documentation in .NET 7+: The Complete Guide to Endpoint Attributes
medium.com
https://medium.com/@serhatalftkn/master-api-documentation-in-net-7-the-complete-guide-to-endpoint-attributes-082b55073452
Topics: ASP.NET Core REST API Web API
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5 Mistakes That Make Your Code Unmaintainable
codeopinion.com
https://codeopinion.com/5-mistakes-that-make-your-code-unmaintainable/
Topics: Clean Architecture C# Solid Principles
Read articleStop Using Location Headers Everywhere: A Guide to RESTful API Design
medium.com
https://medium.com/@serhatalftkn/stop-using-location-headers-everywhere-a-guide-to-restful-api-design-8e3b3d304808
Topics: ASP.NET Core REST API Web API
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Boost Performance Now: C# ObjectPool vs. ArrayPool Showdown
medium.com
https://medium.com/@nagarajvela/boost-performance-now-c-objectpool-t-vs-arraypool-t-showdown-3b1f83d4e303
Topics: Benchmarking C# Performance
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16 common mistakes C#/.NET developers make (and how to avoid them)
blog.elmah.io
https://blog.elmah.io/16-common-mistakes-c-net-developers-make-and-how-to-avoid-them/
Topics: C# Performance Unit Testing
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