Flamegraph Profiling Middleware for Node.js

Flamegraph Middleware provides an HTTP interface for on-demand CPU and heap profiling of Node.js applications, visualizing the results as interactive flamegraphs directly in the browser. It is currently at stable version 1.0.0 and designed to be framework-agnostic, working seamlessly with native `http` servers, Express, Fastify, and other HTTP frameworks. Key differentiators include its non-blocking background profiling, dual CPU and heap profiling capabilities, and temporary in-memory storage of profiles with automatic expiration. This tool is invaluable for identifying performance bottlenecks and memory leaks in production or development environments, offering a user-friendly WebGL-powered visualization for deep analysis of execution paths and memory allocation patterns. The package emphasizes ease of integration and real-time insights.