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ksmithandClaude Sonnet 5
aeb2f3f6a5
Adds a real Workbox runtime-caching strategy on top of the Phase 1 app-shell
precache: StaleWhileRevalidate (cache-and-refresh) for the five read
endpoints (rooms/mine, open rooms, room messages, room members, invites/mine)
with a bounded/expiring cache per endpoint, while /api/auth/* and all
mutations stay network-only. An OfflineBanner (navigator.onLine-driven) and
a clearer Composer status line ("Connecting..." vs "You're offline") surface
what's actually happening; api/client.ts gains a NetworkError distinct from
ApiError so a genuine cache-miss-while-offline shows a quiet empty state
instead of a red error.
Manual offline testing (backend stopped, `vite preview` against the real
production service worker) surfaced a real gap the plan hadn't accounted
for: GET /api/auth/me is intentionally NetworkOnly, but that meant
ProtectedRoute could never confirm a session while offline and always
bounced to /login -- none of the newly-cached room/message data was ever
reachable. Fixed by caching a minimal, non-sensitive "last known user" in
localStorage (lib/lastUser.ts) and having AuthContext fall back to it for
any *unconfirmed* auth check (network failure, or a down backend answering
through a live reverse proxy with its own 502/503/504 -- both happen in
real deployments, not just literal airplane-mode). Only a server-confirmed
401 still clears it and signs the user out; every real action still
re-checks the actual session cookie server-side, so this can't grant
anything -- it only keeps cached UI reachable.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
KeepItTalking frontend (Phase 1)
React + Vite PWA. Login, room list, and chat views wired to the backend's
REST API and /ws/chat WebSocket endpoint. See ../README.md
and ../backend/README.md for full local setup.
Dev
npm install
npm run dev
The dev server proxies /api and /ws to http://localhost:8000 (see
vite.config.ts), so the backend must be running for anything beyond the
login page to work.
Build
npm run build
Generates the PWA manifest and service worker via vite-plugin-pwa into dist/.
Layout
src/
main.tsx, App.tsx routes: /login, /rooms, /rooms/:roomId
api/ fetch wrappers (client, auth, rooms)
ws/useChatSocket.ts WebSocket hook (join/send/receive)
context/AuthContext.tsx current-user state, hydrated via GET /api/auth/me
components/ ProtectedRoute, RoomListItem, MessageList, MessageInput
pages/ LoginPage, RoomListPage, ChatRoomPage