I'm building an SSR React app (Next.js) with dynamic nested routes where components at multiple levels depend on both initial server-side data and real-time client-side updates via WebSockets. The challenge arises when synchronizing DOM state post-hydration—especially when the component tree changes due to route-based code-splitting, and some child components rely on shared context/state from the parent.
To add complexity, I'm using React Query for client-side data fetching (with staleTime optimization), and Zustand for global state management. Occasionally, hydration mismatches or race conditions in the component lifecycle cause duplicated renders or outdated state in components that re-mount when switching routes.
How can I ensure atomic reactivity and state consistency across nested layouts/components when:
Server-rendered state initializes the component.
WebSocket pushes real-time updates that affect both UI and global state.
Route transitions trigger component-level reinitialization with SSR + client hydration in the mix.
I'm looking for best practices (or patterns) around:
Combining SSR state with real-time updates.
Preventing unnecessary re-renders in async/reactive flows.
Managing hydration-safe global state across dynamic routes.
Ensuring context/state doesn't break on layout shifts or route reloads.
Any insights or architecture patterns would be appreciated. Bonus if you've faced this in a production-grade, SEO-friendly app with heavy real-time features.