Implementing Full-Text Search in NestJS with TypeORM and PostgreSQL
Learn how to build production-ready full-text search in NestJS with TypeORM and PostgreSQL, covering generated tsvector columns, GIN indexin...
Aug 28, 2026
6 min
Implementing Passkey Authentication in NestJS and PostgreSQL
A code-first guide to adding WebAuthn passkey registration and login to a NestJS and PostgreSQL API: the schema, the service, the controller...
We Added Redis to Make Things Faster. It Made Things Worse.
We added Redis to fix a slow endpoint and watched response times drop. Then came stale data, invalidation problems, traffic spikes, and data...
Four Ways a Refresh Token Request Fails — Only One Means Trouble
A refresh token system where every token is single-use and belongs to a token family. Invalid, expired, and revoked are routine. Reuse means...
Background Jobs in NestJS with BullMQ: A Complete Walkthrough
A from-scratch background job pipeline in NestJS using BullMQ and Redis, demonstrated on an async LLM draft-generation endpoint — covering r...
Implementing Two-Factor Authentication (TOTP) in NestJS: With Full Source Code
A from-scratch implementation of TOTP-based two-factor authentication in NestJS, covering secret generation, QR code enrollment, partial vs....
IDOR Vulnerabilities in NestJS: How to Build Ownership Guards That Actually Protect Your Data
IDOR is OWASP's top API risk for a reason. A single missing ownership check can expose customer data across your entire application. This gu...
Why Your App Is Slow (And It's Not the Database)
Slow APIs with a clean slow query log trace to one of five root causes. Four have nothing to do with query execution. Here's how to identify...
SQL Mistakes That Kill Your Database (And How to Fix Them)
SQL performance problems rarely come from the database itself — they come from inefficient queries. This guide covers the most common mistak...