nodejs

Build a small REST API on Node 22 with Express: routes, middleware, JSON body parsing, Zod input validation, status codes, and a clean async error pipeline you won't outgrow.

How Node 22 actually runs your code: V8, the libuv event loop and its phases, microtasks vs macrotasks, blocking pitfalls, and where worker threads, npm, pnpm, and bun fit in 2026.