Why Your NestJS Idempotency Implementation Is Probably Broken
Three race conditions hiding in typical NestJS idempotency interceptors — and how the IETF Idempotency-Key standard solves them.
Blog
Cursor vs Offset Pagination in Prisma: When Each Wins
Practical comparison of cursor and offset pagination in Prisma with NestJS — benchmarks, SQL analysis, and a Prisma cursor caveat most tutorials don't mention.
The NestJS API Response Format You Won't Regret
Why every NestJS endpoint should return the same response shape from day one — and how to add it to an existing app without touching a single controller.
NestJS Feature Flags Without External Services
Implement database-backed feature flags in NestJS with tenant overrides and percentage rollouts — no LaunchDarkly, no Unleash, no external dependency.
Build vs Buy: When to Use a Library for SaaS Backend Features
Should you build multi-tenancy, audit logging, and feature flags from scratch or use a library? A practical comparison for NestJS developers.
How to Add Audit Logging to a NestJS API Without Changing Business Logic
Add automatic change tracking to an existing NestJS + Prisma application in under 30 minutes — no service refactoring required.
5 Common Multi-Tenancy Pitfalls in NestJS (and How to Avoid Them)
Avoid data leaks, broken RLS policies, and race conditions when building multi-tenant NestJS APIs with PostgreSQL and Prisma.
Prisma Soft Delete: Why deletedAt Alone Is Not Enough
Common soft-delete traps in Prisma — broken unique constraints, orphaned relations, and missing query filters — with battle-tested solutions.
RLS vs Application-Level Tenancy: Which One Should You Choose?
Compare PostgreSQL Row Level Security with application-level WHERE clauses for multi-tenant NestJS apps — security, performance, and complexity trade-offs.
Introducing nestarc
Production-ready NestJS modules for SaaS backends — why we built them and what's inside.