Day 1: React Fundamentals — Build an Auth MFE
React Day 1: Auth MFE (Vite + TS + Router + MSW) — End-to-End, Line-by-Line Day 1: React Fundamentals — Build an Auth MFE Audience: Beginner–Intermediate | Duration: ~4h demo + ~4h practice (Windows/PowerShell friendly) React is a shift from imperative DOM operations to declarative UI . We'll learn by building: a tiny Auth micro-frontend with /login and /signup . No backend today — we'll use MSW to mock APIs so you focus on React, not servers. What You'll Build & Learn Vite + TypeScript scaffolding, project anatomy, dev server Routing with React Router ( <Link/> , <Outlet/> ) Mocked APIs with MSW ( /api/login , /api/signup , /api/users ) Controlled forms, POST with fetch , UX states (loading/errors) Validation & a11y basics ( aria-* , role="alert...