Home Archive Outbox, middleware, and API hardening – .NET News Daily Issue #192 (May 8, 2025)

Editor's note

I curated a deliberately mixed issue this time: reliability, performance, and day-to-day coding craft all show up. The outbox pattern and HttpClient resiliency pieces are especially practical if you build distributed systems. I also liked the middleware and async/await articles for the kind of mistakes that quietly cost teams time.

Outbox, middleware, and API hardening

Ready to supercharge your Thursday, fellow .NET enthusiasts? Picture it as your turbo-boost into the weekend, a day where code can conquer, bugs don't stand a chance, and your latest project thrives like a cat in a sunbeam. Engage with our seasoned insights, crafted for those who don’t merely write code but curate the future. So, clutch your coffee and let’s transform inspiration into innovation with today’s lineup.

Today's Articles

The Outbox Pattern in .NET: Reliable Event-Driven Microservices Without the Headaches

https://medium.com/@thesimonverma/the-outbox-pattern-in-net-reliable-event-driven-microservices-without-the-headaches-84fb32beaef8

In the world of microservices, one of the trickiest challenges is ensuring reliable communication between services — especially when…

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The Only Reliable Way to Spot Good .NET Code: It’s Not What You Think!

https://medium.com/c-sharp-programming/the-only-reliable-way-to-spot-good-net-code-its-not-what-you-think-08db07134ffe

Struggling to figure out if your .NET code is actually good? In this short, I’ll share the one consistent signal I’ve found after years of… Continue reading on .Net Programming »

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⚙️ .NET Middleware Demystified: Native Patterns That Power Every Request

https://medium.com/@metoz.florian/%EF%B8%8F-net-middleware-demystified-native-patterns-that-power-every-request-da2281e0793b

Middleware is the silent engine behind every ASP.NET Core application, orchestrating how HTTP requests and responses flow through your…

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Professional JSON Handling in .NET

https://medium.com/asp-dotnet/professional-json-handling-in-net-3cfa56dd116b

JSON handling can make or break your app’s speed — especially in the cloud. In this deep dive, a Principal Engineer shares real-world… Continue reading on ASP DOTNET »

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How to Improve Application Performance By Caching Data in Web Pages

https://learn-code-learn.medium.com/how-to-improve-application-performance-by-caching-data-in-web-pages-7c15da841ac0

In this article we will discuss on how to improve application performance by improving responsiveness of our website. Continue reading on .Net Programming »

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Building Zero-Trust Architectures with C# Services

https://www.c-sharpcorner.com/article/building-zero-trust-architectures-with-c-sharp-services/

This article covers secure authentication, authorization, microservices communication, and policy enforcement to help you design modern, resilient, and secure applications based on Zero-Trust principl...

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Why Is Your .NET App Slow? Memory Analysis & Fixes

https://medium.com/asp-dotnet/why-is-your-net-app-slow-memory-analysis-fixes-ad3a886e5864

Memory bottlenecks can cripple even well-architected .NET applications, especially in cloud environments. This deep dive into memory… Continue reading on ASP DOTNET »

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Are Controllers on Their Way Out? (Spoiler: They’re Getting Distracted)

https://medium.com/write-a-catalyst/are-controllers-on-their-way-out-spoiler-theyre-getting-distracted-9de14b25cb1e

Let me tell you about the time I accidentally broke an entire API during a Friday afternoon deploy. Continue reading on Write A Catalyst »

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I have deeply investigated Records in C#, so you don’t have to.

https://codenp.com/i-have-deeply-investigated-records-in-c-so-you-dont-have-to-9cff83633a5e?source=rss------csharp-5

Unlike Classes in C#, Records are of an immutable type by default. Apart from that, Record supports value-based equality comparison, which… Continue reading on codenp »

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Building an E-Commerce Chatbot in ASP.NET Using SQL Server

https://www.c-sharpcorner.com/blogs/building-an-ecommerce-chatbot-in-asp-net-using-sql-server

Learn how to build a simple e-commerce chatbot using ASP.NET Web Forms and SQL Server—no third-party AI or JavaScript needed.

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HackerRank: Plus Minus Solution in C#

https://davutdursun.medium.com/hackerrank-plus-minus-solution-in-c-f35e0ca9b171

Access without membership: Here

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C# Symbol Secrets: How !, ?, ?: Can Make You a Better Developer

https://medium.com/@nagarajvela/c-symbol-secrets-how-can-make-you-a-better-developer-8b9f42e2cbe9

Harness !, ?, ?:, and other operators to simplify code. Continue reading on Cubed »

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Running RAG with ONNX Runtime GenAI for On-Prem Windows

https://devblogs.microsoft.com/ise/running-rag-onnxruntime-genai

Exploring how to efficiently run a RAG pipeline with structured language models (SLMs) and guardrails on Windows, achieving inference under 5 seconds with ONNX Runtime GenAI.

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Mediator Without MediatR: Build Your Own CQRS Dispatcher in 30 Lines

https://medium.com/@metoz.florian/mediator-without-mediatr-build-your-own-cqrs-dispatcher-in-30-lines-a43edd474faa

Tired of adding big libraries for small problems? Worried about what happens when your favorite open-source tool goes commercial? 🤔

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Boost Your .NET Projects: Simplify Dictionary Handling with AutoDefaultDictionary in Spargine

https://dotnettips.wordpress.com/2025/05/04/boost-your-net-projects-simplify-dictionary-handling-with-autodefaultdictionary-in-spargine/

Introducing AutoDefaultDictionary The AutoDefaultDictionary<TKey, TValue> class simplifies handling missing keys in dictionaries by automatically returning a default value or using a custom functio...

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Your Database Isn’t a Junk Drawer — So Stop Treating It Like One

https://medium.com/@michaelmaurice410/your-database-isnt-a-junk-drawer-so-stop-treating-it-like-one-80abb47f29ec

Aggregate Root Design 101 in .NET (DDD + Clean Architecture Edition)

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Top 5 Must-Have .NET Libraries for 2025 Projects

https://medium.com/@karthikns999/top-5-must-have-net-libraries-for-2025-projects-aea86de70260

Boost Productivity and Code Quality with These Must-Have .NET Libraries in 2025

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Clean Architecture in .NET

https://medium.com/@faysalwrites/clean-architecture-in-net-12e8243caefb

How to Structure Scalable Applications

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Avoid These 7 C# Coding Mistakes Beginners Make

https://medium.com/@venkataramanaguptha/avoid-these-7-c-coding-mistakes-beginners-make-7477cf3248f9

Learning C# is exciting — but it’s also easy to fall into traps that can make your code buggy, hard to maintain, or slow.

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What is Mirrored data in SQL database in Fabric?

https://www.youtube.com/watch?v=xnl6Vnr7l8E

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Building “Production-Grade” APIs in .NET

https://www.eventuallyconsistent.xyz/what-is-production-ready-api

Many engineers build and deploy APIs into production. So we have an API running in production — does that mean it’s truly…

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Configuring dotnet core apps for OpenApi with SwaggerUi or Scalar

https://ravindradevrani.com/posts/configuring-dotnet-core-app-for-swagger-ui-or-scalar/

SwaggerUI, which was previously bundled with .NET Core APIs, has been dropped in .NET 9. However, .NET Core Web APIs still support…

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20 Worst Async/Await Patterns in .NET (With Examples)

https://medium.com/@metoz.florian/20-worst-async-await-patterns-in-net-with-examples-52f058562a98

Asynchronous programming in .NET with async and await can make your apps responsive and scalable. But used incorrectly, these features can…

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Mastering HttpClient Resiliency in .NET: Part 1 — CircuitBreaker, Retry, Timeout, and more (C#)

https://ogulcanturan.medium.com/mastering-httpclient-resiliency-in-net-part-1-circuitbreaker-retry-timeout-and-more-c-af0d54cb3d6f

The Best practices for HttpClient resiliency — including Circuit Breaker, Rate Limiting, Retry, Timeout…

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Jasen's take on today's picks

The Outbox Pattern in .NET: Reliable Event-Driven Microservices Without the Headaches

A solid walkthrough of the outbox pattern for keeping event-driven systems consistent without fragile hand-rolled plumbing.

The Only Reliable Way to Spot Good .NET Code: It’s Not What You Think!

This is a useful reality check on judging code quality by maintainability and clarity, not just clever syntax.

⚙️ .NET Middleware Demystified: Native Patterns That Power Every Request

A good breakdown of middleware fundamentals for anyone who wants to understand where request behavior really lives.

Professional JSON Handling in .NET

Practical JSON guidance matters because serialization choices ripple through APIs, contracts, and debugging.

How to Improve Application Performance By Caching Data in Web Pages

Caching advice is evergreen when page latency is hurting users and your database is doing too much work.

Building Zero-Trust Architectures with C# Services

Zero-trust thinking in C# services is a timely reminder that internal code still needs explicit trust boundaries.

Why Is Your .NET App Slow? Memory Analysis & Fixes

Memory analysis tips here should help teams track down slow .NET apps before blaming the framework.

Are Controllers on Their Way Out? (Spoiler: They’re Getting Distracted)

The controllers piece reflects how modern ASP.NET Core apps keep shifting logic out of MVC fat controllers.

I have deeply investigated Records in C#, so you don’t have to.

Records are still easy to misuse, so this deep dive should save people from subtle value-semantic surprises.

Building an E-Commerce Chatbot in ASP.NET Using SQL Server

An ASP.NET chatbot example makes the SQL Server angle concrete instead of leaving AI integration abstract.

HackerRank: Plus Minus Solution in C#

A simple HackerRank-style solution is a nice palate cleanser and a reminder that fundamentals still matter.

C# Symbol Secrets: How !, ?, ?: Can Make You a Better Developer

The C# symbol guide is short but useful for reading code with more confidence and fewer guesses.

Running RAG with ONNX Runtime GenAI for On-Prem Windows

Running RAG on ONNX Runtime GenAI for on-prem Windows is a strong fit for teams that need local AI.

Mediator Without MediatR: Build Your Own CQRS Dispatcher in 30 Lines

Building your own mediator is a neat CQRS exercise, especially if you want to understand MediatR under the hood.

Boost Your .NET Projects: Simplify Dictionary Handling with AutoDefaultDictionary in Spargine

The dictionary helper is the sort of library utility that quietly reduces boilerplate across a codebase.

Your Database Isn’t a Junk Drawer — So Stop Treating It Like One

The database article is blunt in the best way: persistence design deserves real modeling, not junk-drawer treatment.

Top 5 Must-Have .NET Libraries for 2025 Projects

A curated list of .NET libraries can be handy, but the value is in filtering for what actually solves problems.

Clean Architecture in .NET

Clean architecture remains popular because it gives teams a vocabulary for keeping boundaries sane.

Avoid These 7 C# Coding Mistakes Beginners Make

Beginner mistakes are worth revisiting, since many senior bugs still start with sloppy basics.

What is Mirrored data in SQL database in Fabric?

Fabric mirrored data is a useful watch if you’re tracking Microsoft’s broader data platform story.

Building “Production-Grade” APIs in .NET

Production-grade APIs are about behavior under load, failure handling, and operational readiness—not just endpoints.

Configuring dotnet core apps for OpenApi with SwaggerUi or Scalar

Swagger UI and Scalar setup guidance is practical for teams standardizing OpenAPI docs in .NET Core.

20 Worst Async/Await Patterns in .NET (With Examples)

The async/await anti-pattern roundup is likely the most immediately actionable debugging read in the issue.

Mastering HttpClient Resiliency in .NET: Part 1 — CircuitBreaker, Retry, Timeout, and more (C#)

HttpClient resiliency patterns are essential for any service calling external dependencies in production.

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