Backend Development

Page 1 of 6

• 

  Backend DevelopmentAugust 27, 202643 min

  Postgres Dead Tuples Not Being Removed: Fixes (2026)

  Postgres dead tuples not being removed? VACUUM can only delete rows older than the xmin horizon. Here is how to find what holds it back, and how to fix it.

• 

  Backend DevelopmentAugust 3, 202621 min

  BullMQ Worker Not Processing Jobs? Fix It (2026)

  BullMQ worker not processing jobs? Work through queue name and prefix, maxRetriesPerRequest, stalled-job locks, and the v6 ioredis peer dependency change.

• 

  Backend DevelopmentJuly 2, 202614 min

  Postgres MERGE RETURNING: Old and New Values (2026)

  Postgres 18 lets MERGE RETURNING return old and new row values in one query. See merge_action(), the xmax alternative, and verified Node.js/TypeScript code.

• 

  Backend DevelopmentJuly 1, 202612 min

  Correlation IDs in Node.js with AsyncLocalStorage (2026)

  Add a correlation ID to every log line in Node.js with built-in AsyncLocalStorage and Express — typed, zero-dependency, plus pino and downstream propagation.

• 

  Backend DevelopmentJune 30, 202617 min

  Node.js Circuit Breakers with opossum + TypeScript (2026)

  Build a production Node.js circuit breaker in TypeScript with opossum: closed, open, half-open states, fallbacks, errorFilter, timeouts, and verified output.

• 

  Backend DevelopmentJune 27, 202616 min

  Postgres Row-Level Security for Multi-Tenant Apps (2026)

  Implement Postgres row-level security for multi-tenant apps with node-postgres: enable RLS, write current_setting policies, and avoid the pool-leak footgun.

• 

  Backend DevelopmentJune 24, 202611 min

  Drizzle ORM Relational Queries: db.query Guide (2026)

  Query nested relations in Drizzle ORM with db.query and the with operator: filter and limit child rows, run many-to-many joins, plus the v1 vs v2 changes.

• 

  Backend DevelopmentJune 22, 202611 min

  tRPC v11 End-to-End Type Safety: Server + Client (2026)

  Build a fully type-safe tRPC v11 API in TypeScript: a standalone server, a vanilla client, Zod validation, and error handling. No framework, all runnable.

• 

  Backend DevelopmentJune 17, 202610 min

  Postgres 18 UUIDv7 Primary Keys: Practical Guide (2026)

  Use Postgres 18's built-in uuidv7() for primary keys: default DDL, uuidv7 vs uuidv4 vs bigint, migrating off uuidv4, and the timestamp-leak caveat to know.

• 

  Backend DevelopmentJune 16, 202614 min

  Valkey with Node.js and TypeScript: 2026 Setup Guide

  Connect Valkey from Node.js and TypeScript with the iovalkey client: Docker setup, typed caching, pipelines, pub/sub, error handling, and graceful shutdown.

• 

  Backend DevelopmentJune 14, 202618 min

  gRPC in Node.js and TypeScript: Production Guide (2026)

  Build a typed, production gRPC service in Node.js and TypeScript: server streaming, deadlines, the error model, and health checks. Runnable 2026 guide.

• 

  Backend DevelopmentJune 11, 20269 min

  Postgres LISTEN/NOTIFY for Job Queues: 2026 Guide

  Should you use Postgres LISTEN/NOTIFY for a job queue? The global commit lock, 8000-byte payload cap, PgBouncer limits, and safer SKIP LOCKED patterns.