Locks Are Not Syntax, They Are Boundaries
A practical explanation of what locks are for, when to consider them, how optimistic and pessimistic locking differ, and why local locks are not enough in distributed systems.
Backend
3 posts
How to Skip a Global NestJS Interceptor for Specific Routes
Skip a global NestJS response interceptor on selected routes with SetMetadata and Reflector, while keeping response wrapping enabled everywhere else.
A SQL Injection Incident Review: NestJS Validation, Logs, and Server-Side Security
A practical review of a SQL injection issue found during a Mini Program security test, covering NestJS validation, ORM query safety, PM2 logs, database constraints, and defense in depth.