Editor's note
I curated a deliberately mixed lineup this time, from unit testing and LINQ to JWT, Playwright, and modernization work. The JWT security piece and the legacy-to-Azure roadmap stood out because they’re the kind of practical decisions teams keep revisiting.
Unit tests, auth, and modernization
Jasen Fici
August 05, 2025
It's Tuesday, the thoughtful sibling among weekdays, inviting us to pause, reflect, and refine our .NET skills. Today, we delve deep, much like classic films—rich, layered, and rewarding upon closer inspection. This edition is packed with articles designed to challenge your perspective and enhance your expertise, promising revelations akin to discovering a forgotten gem in a box of old vinyl. So, grab your favorite brew, settle in, and let today's insights add a touch of polish to your developer toolkit.
Today's Articles
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Jasen's take on today's picks
The Importance of Unit Testing in C#
A straightforward reminder that unit testing is still one of the cheapest ways to protect design quality and speed up refactoring.
How AI Cleaned Up My Blog with Custom Chat in VS Code
This AI-assisted VS Code cleanup is interesting because it shows how quickly custom chat workflows are sliding into everyday .NET content work.
These 10 .NET Coding Habits Separate Senior Developers from the Rest
A senior-dev checklist article like this can be useful, but I’d read it as prompts for judgment rather than universal rules.
Securing Data in Transit: A Guide to Hybrid AES & RSA Encryption & Decryption in React +.NET
The hybrid AES/RSA walkthrough is a solid refresher on protecting data in transit, especially when teams build across React and .NET.
Is this the best REST API Client in .NET?
Refit remains a practical REST client choice when you want strongly typed HTTP without overbuilding.
They Laughed at My “No JWT” Rule — Until Our Breach Post‑Mortem Went Viral (for the Right Reasons)
The anti-JWT post is provocative, but the real value is the breach-postmortem framing around authentication tradeoffs.
C# StringBuilder Pool: The Ultimate Hack for Faster String Operations
StringBuilder pooling is the sort of micro-optimization that only pays off in hot paths, so measure before you adopt it.
A CTO’s Roadmap to Modernizing Legacy Systems with .NET 8 & Azure
The Azure modernization roadmap is the kind of executive-level guide that helps align technical cleanup with migration planning.
Best Practices for Implementing JWT Auth in .NET Core and React
JWT auth best practices in .NET Core and React are worth revisiting because most teams get the edge cases wrong first.
5 C# Features That Instantly Expose Junior Devs
The junior-dev feature list is more culture bait than deep engineering, though it may spark good code review conversations.
.NET Architecture Alert: Mastering Interfaces for Top-Notch Scalability
Interfaces versus abstract classes is a classic architecture discussion, and the useful part is the decision-making context.
Create a Personal Budget Tracker in C# Using JSON and Console UI
A JSON-backed budget tracker is a nice beginner project that reinforces file I/O, serialization, and console UX basics.
Don’t Let Nulls Haunt Your Game: A Fun Look at Null Handling in C#
Null handling advice framed through game code can still help teams think more clearly about defaults and defensive modeling.
Migrating a legacy Windows application to Enterprise SaaS
The legacy Windows-to-SaaS migration guide is valuable if you’re mapping a realistic path off aging desktop dependencies.
5 C# Tricks Microsoft Hopes You Never Learn
The mysterious C# tricks piece is clicky by design, but these posts often hide a few legitimately useful language reminders.
Implementing Clean Architecture in .NET
Clean architecture content stays relevant when it focuses on boundaries and dependency direction instead of slogans.
.NET Engineers, Evolve or Fade — Your AI Survival Guide
The AI survival-guide angle is loud, but the underlying point about adapting workflows is hard to ignore.
Data-Driven Testing with Playwright
Data-driven Playwright testing is a practical pattern for stretching one test body across many inputs.
Load Balancing in .NET Microservices
Load balancing in microservices is foundational material, especially once request distribution becomes a production concern.
Unlocking High-Speed Messaging in .NET: The Library You Shouldn’t Ignore
High-speed messaging coverage matters whenever teams need lower-latency service communication without hand-rolling plumbing.
5 Reasons .NET is Ideal for Building Secure Fintech Apps
The fintech security post is broad, but it’s a useful reminder that trust, compliance, and speed all compete in financial software.
Mastering LINQ in C#: Tips, Tricks, and Pitfalls
LINQ tips and pitfalls are always worth a skim, because the sharp edges usually show up in production queries.
Another clean architecture post keeps the conversation going, which is useful when teams need concrete examples over theory.