HTTP 202 Is Not Delivery: Tracking Async Workflows in NestJS
What HTTP 202 Accepted proves—and does not prove—in a NestJS workflow spanning Prisma, a transactional outbox, BullMQ, and outbound webhooks.
Blog
Why Your NestJS RBAC Breaks in Multi-Tenant Apps
The authorization bugs that appear when roles, tenants, API keys, and resource-scoped permissions collide in a production NestJS SaaS backend.
Why Your NestJS Idempotency Implementation Is Probably Broken
Three race conditions hiding in typical NestJS idempotency interceptors -- and how the IETF Idempotency-Key draft addresses them.
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.
NestJS Audit Log Code Example with Prisma
Build a NestJS audit log with Prisma Client Extensions, actor context, before/after diffs, and atomic automatic tracking.
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 in NestJS: Patterns and Pitfalls
Implement Prisma soft delete in NestJS with an extended client, PostgreSQL active-row uniqueness, relation filters, cascade, restore, and purge.
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
Maintained NestJS modules with explicit Supported and Preview status — why we built them and what's inside.