Scaling React Applications

Enterprise React apps grow fast — hundreds of routes, complex forms, real-time dashboards, and 3D viewers competing for the same bundle.

Route-Level Code Splitting

Next.js App Router splits by route automatically. For client components, lazy load heavy modules:

const FloorPlanner = dynamic(() => import('./FloorPlanner'), {
  loading: () => <Skeleton />,
  ssr: false,
});

Three.js and WebGL viewers should never block initial page load.

State Management Discipline

Not every piece of state needs Redux. Prefer:

• Server state — React Server Components + fetch/cache for data
• URL state — search params for filters and pagination
• Client state — useState/useReducer for UI-only concerns
• Global client state — sparingly, for auth context and theme

Component Architecture

• Feature folders — colocate components, hooks, and types per domain
• Shared UI — design system primitives (buttons, cards, forms)
• Container/presentational split — data fetching in containers, pure rendering in components

Performance Monitoring

Track Core Web Vitals in production. For dashboard-heavy apps:

• Virtualize long lists (react-window)
• Debounce search inputs
• Memoize expensive computations — but profile first, don't premature optimize

Real-Time Features

WebSocket updates for live dashboards. Isolate subscription logic in hooks; components subscribe to derived state, not raw socket events.

Metadata-Driven UIs

Dynamic form and table renderers reduce component proliferation. One renderer, many configurations — critical for platform products generating UIs from schema.

Scaling React is less about framework choice and more about architectural boundaries that keep bundles lean and teams autonomous.