CodeOpinion
CodeOpinion is by Derek Comartin, a software developer with over two decades of professional software development experience.
He's written software for a variety of business domains such as distribution, transportation, manufacturing, and accounting.
Derek has a very active blog @ codeopinion.com, that focuses on Software Architecture & Design, Messaging, CQRS, Event Sourcing and HTTP APIs.
This Is Why Breaking Your API Contract Keeps Breaking Clients
The Future of AI Integration: MCP with James Montemagno & Den Delimarsky
David Fowler on Design, APIs, and Avoiding Dogma
Design, Modularity, and the Future of Software — Gene Kim on Vibe Coding
Clean Up Bloated CQRS Handlers with Domain Logic & Pipelines
Double Dispatch in DDD: When Injecting Dependencies Makes Sense
Authorization: Domain or Application Layer?
‘Vibe Coding Rules’: Timeless Dev Wisdom with a Trendy Label
Your API Errors Suck (Here’s How to Fix Them)
Stop CRUD-Sourcing: Why Your Event Streams Are Bloated and Broken
Regex for Email Validation? Think Again!
Disparate Data: Should You Fetch in Real-Time or Cache for Speed?
Why Separate Databases? Explaining Like You're Five
Loosely Coupled Monolith - Software Architecture - 2025 Edition
Database Migration Strategies & Flyway Example
The Distributed Systems Mistake Nobody Warns You About!
The Slippery Slope of In-Memory Message Bus – Beware!
5 Mistakes That Make Your Code Unmaintainable
You DON’T Need Microservices for Serverless! Here’s Why
API Caching Done Right
How to FIX a Spaghetti Code System
10 Years of Software Architecture: Best And Worst Decisions
Exploring Multi-tenancy with Jeremy Miller (.NET, Marten, Wolverine)
CRUD APIs are Poor Design
DTOs & Mapping : The Good, The Bad, And The Excessive
It's OK to push to Production on Friday!
"The Cloud Sucks! You just need a $4 VPS"...?
If you can't build Microservices, what makes you think you can build a Monolith?
Static Variables & Methods are Evil? 😈
I'd rather read 50 lines than "Extract Method" Refactoring