Setting Up NestJS to Fit Your Preferences
"NestJS boilerplate" code is hard to read, and you may not need all of it. Build your own setup: tooling, paths, config, logging, errors, and health checks.
Blog
Separating Concurrency Control Code with AOP
Spring AOP pulls distributed-lock code out of business logic. A DistributedLock aspect modeled on @Transactional, with a SpEL key evaluator like Spring Cache.
Myths and Facts About Lettuce Distributed Locks (feat. RedisLockRegistry)
Lettuce is not limited to spin locks. How Spring RedisLockRegistry's Pub/Sub lock mode builds an efficient distributed lock without Redisson.
Understanding Pessimistic Locks Through a Like Feature
Like-button races, solved with database locks. How pessimistic locking works, and how next-key locks slow the check for whether a review was already liked.
Relearning Java Concurrency Control from the Ground Up
How the JVM monitor behind synchronized works, what ReentrantLock adds, and a producer-consumer fix. Then lock striping on per-user keys to raise throughput.