Posts
Mongoose vs MongoDB Driver: When to Use What
Should you reach for Mongoose or the native MongoDB driver? We have shipped both to production, and the honest answer is that neither one wins …
Mendel: A Self-Hosted A/B Testing Framework
Mendel is a self-hosted A/B testing and feature flag library for Node.js apps that already use Mongoose. v1.0.2 shipped this week on npm under MIT. …
Structured Logging in Nodejs: A Complete Guide to Pino
Logging is often the last thing added to a Nodejs service and the first thing developers reach for when something breaks at 2 AM. Plain console.log …
Node.js Memory Management and Debugging
Memory leaks in production Node.js applications are some of the hardest bugs to track down. The process behaves fine for hours, then slowly creeps …
JavaScript WeakRef: The Feature You Probably Shouldn't Use
Most JavaScript developers go their entire careers without ever touching WeakRef. That is probably for the best. However, it is one of those corners …
15 Configuration Files Every Developer Should Know
The first time you clone a production repo, you scroll past the src/ folder and freeze. There is a parade of files you have never opened: .eslintrc, …
Node.js with TypeScript in 2025: Best Practices Guide
TypeScript is the standard for building Node.js applications in 2025. These are the patterns we use for production TypeScript projects. TS adds static …
Node.js Error Handling Patterns for Production
Error handling separates production-grade Node.js applications from hobby projects. These are the patterns we use to build systems that do not crash …
Integrating AI and LLMs with Node.js: A Practical Guide
Most Node.js backends now have at least one LLM integration. The async, event-driven model fits this workload well: the bottleneck is network I/O, not …
MongoDB Aggregation Pipeline Performance Tuning
MongoDB aggregation pipelines transform documents step by step; filtering, reshaping, grouping, and sorting them. On a collection of 1 million …