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Week 13 of #100DaysOfCode: Completing Spring Microservices and Starting JUnit 5
21+ hour, 9+ min ago (875+ words) This week was another challenging but rewarding part of my #100DaysOfCode journey. I started the week by learning about Docker and containerized Microservices, exploring how containers differ from Virtual Machines, how Docker images and containers work, and how Docker helps package…...
Scoped Values in Java 25: Retiring ThreadLocal in Your Spring Boot Request Context
1+ day, 7+ hour ago (34+ words) If you have ever carried a tenant ID, a correlation ID, or the current user through a Spring Boot request without …...
Spring Boot 4 + Java 25: 10 Things You Should Stop Doing in Your REST APIs
1+ day, 12+ hour ago (38+ words) Modernizing only works when you can say out loud what each change buys you. “It’s newer” is not a reason. I keep a …...
Keeping Services Loosely Coupled Without Making Everything Abstract
1+ day, 20+ hour ago (500+ words) Loose coupling is one of those things everyone agrees with until they have to do it. Then it turns into a mess of interfaces, event buses, and six layers of indirection for a feature that just sends an email. I've…...
Building Backend Services in Go in the Age of Agentic AI
1+ day, 18+ hour ago (1530+ words) Why boring, explicit code wins when the most frequent reader of your code isn’t human. For a long time, the people reading my code were …...
The Go context.Context Trick That Saved My Service From Crashing 💥
1+ day, 22+ hour ago (29+ words) Okay, picture this: you’re staring at your production dashboards, and your core service — the one everyone depends on — is …...
Applied Sciences, Vol. 16, Pages 9069: Empirical Static and Infrastructure Evaluation of Microservice Frameworks Across JVM, GraalVM Native Image, and Rust in Containerized Environments
2+ day, 7+ hour ago (591+ words) Framework and runtime selection for containerized microservices are usually guided by request-level benchmarks, yet deployment-facing costs often dominate operational expenditure in Kubernetes environments. This study empirically evaluates four such infrastructure characteristics: container image size, startup time, idle resource consumption, and…...
You Don't Need Express to Build a Microservice (Here's the Zero-Dependency Version)
2+ day, 8+ hour ago (570+ words) Open ten "Node.js microservices" tutorials and nine start the exact same way: install Express, install an HTTP client, write a docker-compose.yml, stand up a message broker. By the time application code shows up, you've installed six things and…...
Circuit Breaker Pattern
2+ day, 16+ hour ago (534+ words) One-liner: A circuit breaker stops calling a failing service to give it time to recover — instead of hammering it with requests that are guaranteed to fail. ❓ The Problem: Cascading Failures User Request ↓ Service A ──► Service B ──► Service C (DOWN 💥) ↑ ↑ Threads…...
I Would Reject the Engineer Who Says “Microservices” in the First Five Minutes
2+ day, 12+ hour ago (794+ words) Not because microservices are bad. Because choosing an architecture before understanding the problem is exactly the …...