LINQ, APIs, and observability in .NET
A varied .NET roundup covering LINQ internals, Web API patterns, OpenTelemetry metrics, Azure Functions triggers, AI tooling, and Visual Studio news.
Jasen's top three picks
- 1 How LINQ Execution Actually Works: Power of Being Lazy
medium.com
A clear look at why LINQ stays lazy until enumeration, which is still a common source of surprises in real apps.
- 2 Stop Cascading Failures: A Practical Guide to the Circuit Breaker Pattern in .NET
medium.com
A practical circuit breaker walkthrough with Polly that helps you stop one failing dependency from taking everything down.
- 3 What Are the New Features in C# 13?
c-sharpcorner.com
A solid refresher on C# 13 changes, especially useful if you’re tracking what lands with .NET 9 and compiler updates.
Editor's note
I curated a very mixed issue this time: from LINQ laziness and middleware internals to API design, observability, and AI tooling. The OpenTelemetry piece and the Visual Studio 2026 release stood out because they affect daily development work right away.
Today's articles
How LINQ Execution Actually Works: Power of Being Lazy
medium.com
Have you ever written a beautifully complex LINQ query, stepped through it with your debugger, and noticed that your app didn’t actually…
Topics: C# .NET Core Performance
Read articleStop Cascading Failures: A Practical Guide to the Circuit Breaker Pattern in .NET
medium.com
How to prevent cascading failures in distributed systems using Polly.
Read articleWhat Are the New Features in C# 13?
c-sharpcorner.com
Explore C# 13's new features: enhanced params, ref structs, partial properties, compiler optimizations & .NET 9 interoperability for cleaner, faster code!
Read articleSolving SOLID Problems with Design Patterns in .NET
medium.com
Introduction
Topics: C# Design Patterns Solid Principles
Read articleA smarter way to learn .NET without reading the docs
roundthecode.com
Discover how .NET concepts can be learned without reading documentation, using AI tools to turn docs and videos into podcasts, summaries and mind maps. The page A smarter way to learn .NET without rea...
Topics: .NET Core GitHub Copilot OpenAI
Read articleStep-by-step guide to create an ASP.NET Core project through Visual Studio
medium.com
1.Install Visual Studio
Topics: ASP.NET Core Visual Studio
Read articlePagination, Sorting & Searching in ASP.NET Core Web API
codewithmukesh.com
Implement pagination, sorting, and searching in ASP.NET Core Web API with EF Core 10. Offset & keyset pagination, dynamic sorting, and performance tips.
Topics: ASP.NET Core EF Core Web API
Read articleBuilding CRUD API with Dapper and Dapper Plus in ASP.NET Core
codingsonata.medium.com
When it comes to building CRUD API, you do not have to choose between control and productivity.
Topics: ASP.NET Core Dapper Web API
Read articleMiddleware Deep Drive in .NET
medium.com
Middleware in .NET acts as a request pipeline component that handles logging, authentication, routing, and error handling. Each middleware…
Topics: ASP.NET Core .NET Core
Read articleMicrosoft.Extensions.AI: The .NET Feature That’s Quietly Killing Boilerplate
medium.com
.NET 9 added AI abstractions that make integrating LLMs stupidly simple. Here’s why nobody’s talking about it. Continue reading on JavaScript in Plain English »
Read articleSmart AI Customer Support Chatbot with Angular + ASP.NET Core + Python (ML/NLP)
medium.com
Transforming Customer Support with AI & Full-Stack Engineering
Topics: ASP.NET Core .NET MAUI OpenAI
Read articleVisual Studio 2026 18.3 Released
news.google.com
Visual Studio 2026 18.3 Released
Topics: Visual Studio
Read articleSwagger UI: Architecture, Configuration, and Enterprise Implementation Guide
c-sharpcorner.com
Explore Swagger UI: architecture, configuration, and implementation for interactive API documentation. Enhance development and collaboration in modern systems.
Topics: ASP.NET Core REST API Web API
Read articleObservability in .NET with OpenTelemetry
c-sharpcorner.com
Explore .NET observability with OpenTelemetry! Learn how to monitor distributed applications using logs, metrics, and traces. Plus, a basic setup example included!
Topics: .NET Core OpenTelemetry Performance
Read articleBeyond HTTP: Timer, Queue, and Blob Triggers
medium.com
Azure Functions for .NET Developers: Series
Topics: Azure Azure Functions
Read articleLight up Multiple Databases with a Single API with Data API builder's multi-source configuration
devblogs.microsoft.com
Data API builder (DAB) supports multi-source configurations Data API builder (DAB) connects to your database with a safe REST or GraphQL endpoint. But DAB is not limited to just one database. Using a ...
Topics: Azure REST API Web API
Read articleLINQ in C#: Understanding the Select() Operator
medium.com
When developers first encounter LINQ, they often see Select() as “just a projection method.” But in real systems, Select() is the operator…
Topics: C# .NET Core Performance
Read articleCreating standard and "observable" instruments: System.Diagnostics.Metrics APIs - Part 3
andrewlock.net
In this post I discuss the various Instrument
Topics: .NET Core OpenTelemetry Performance
Read articleClaude Sonnet 4.6 in Microsoft Foundry-Frontier Performance for Scale
techcommunity.microsoft.com
Claude Sonnet 4.6 is available today in Microsoft Foundry, and it is designed for teams who want frontier performance across coding, agents, and professional work at scale. The post Claude Sonnet 4.6...
Topics: Azure OpenAI Semantic Kernel
Read article