Posts

Learn how I prevented cascading failures in microservices using the circuit breaker pattern. Real-world examples with Node.js, configuration strategies, and monitoring approaches that actually work.

A practical comparison of Redis and RabbitMQ for message queues in Node.js microservices. Learn when to use each, with real production code examples.

Stop using Chrome DevTools like it's 2015. Discover network request blocking, logpoints, memory snapshots, and performance profiling techniques that actually work in production debugging.

Learn how to implement source maps in production to debug minified JavaScript code effectively. Covers Webpack, Vite, and esbuild configuration, security strategies, and error tracking integration.

Learn how to instrument your Node.js applications with Prometheus metrics for better observability and performance monitoring in production.

Learn how to implement distributed tracing in Node.js microservices using OpenTelemetry. Discover traces, spans, context propagation, and production best practices.

Learn how to implement proper focus management in SPAs to create accessible, keyboard-friendly experiences that rival traditional page loads.

Learn how to properly test JavaScript applications with screen readers. Discover practical techniques for NVDA, VoiceOver testing, and building accessibility into your development workflow.

Learn how to build accessible React applications with proper keyboard navigation patterns, focus management, and WCAG compliance through practical examples and custom hooks.

Learn the essential ARIA patterns every JavaScript developer needs to build accessible web applications. From modal dialogs to custom dropdowns, master focus management and screen reader support.

Learn how to properly manage secrets in Node.js applications—from development .env files to production vault solutions. Includes practical examples of AWS Secrets Manager, HashiCorp Vault, and runtime secret rotation.

Learn when to use DOMPurify versus manual validation for input sanitization. Real-world examples comparing DOM-based sanitization with regex and custom validation approaches.