Migrating Express.js to Fastify or Hono: Reducing Framework Overhead in High-Traffic Node.js Backends

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TL;DR: Express.js overhead becomes a bottleneck at high scale due to its synchronous middleware chain and inefficient JSON serialization. Migratin…
Migrating Express.js to Fastify or Hono: Reducing Framework Overhead in High-Traffic Node.js Backends

Resilience in Node.js: Managing Uncaught Exceptions and Promise Rejections

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TL;DR: When an unhandled error occurs, the Node.js process is in an undefined state. You must log the stack trace synchronously, trigger a gracefu…
Resilience in Node.js: Managing Uncaught Exceptions and Promise Rejections

Profiling Node.js Memory Leaks: Deep Dive into V8 Heap Analysis

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TL;DR: Identify memory leaks by comparing multiple heap snapshots using Chrome DevTools or the v8 module; focus on "Retained Size" to f…
Profiling Node.js Memory Leaks: Deep Dive into V8 Heap Analysis

Tuning HikariCP for High-Throughput Spring Boot Services

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I recently handled a production outage where a Spring Boot 3.2 service running on Java 21 started throwing SQLTransientConnectionException during …
Tuning HikariCP for High-Throughput Spring Boot Services