dial-architecture

Development

Reference for the ai-dial-chat architecture - NX monorepo layout, Redux Toolkit + RxJS epics, Next.js API proxy, store/selectors/actions barrels, layer responsibilities and dependency rules. Use when adding a new store domain or API route, wiring up epics/selectors/actions, or reasoning about how data flows from a component through the store to DIAL Core.

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The full architecture guide lives at .claude/guides/architecture.md. Read it for the complete reference, then apply the patterns below.

When this applies

Adding a new store domain (slice + reducers + epics + selectors)
Adding or changing a Next.js API route
Tracing data flow (component → dispatch → epic → API → DIAL Core → reducer → selector)
Deciding where logic belongs across layers

Core rules

Redux Toolkit + RxJS epics for all state and side effects. No async logic in reducers — put it in epics.
Import selectors only from apps/chat/src/store/selectors.ts (barrel). Never import directly from store/[domain]/*.selectors.ts.
Import actions only from apps/chat/src/store/actions.ts (barrel).
No server-side state — all persistence goes through DIAL Core via Next.js API routes.
utils/server/* is server-only — never import it into components or client code.
Use the @/src/... path alias for internal imports, not deep ../../ relatives.

Adding a new store domain

Create apps/chat/src/store/[domain]/
[domain].types.ts — state shape
[domain].reducers.ts — createSlice with actions
[domain].epics.ts — AppEpic observables + combineEpics
[domain].selectors.ts — createSelector
Wire up: export selectors in store/selectors.ts, epics in store/rootEpic.ts, actions in store/actions.ts

Adding a new API route

Create apps/chat/src/pages/api/[route].ts
Validate session first: validateServerSession(session, req, res)
Proxy to DIAL Core via server utilities

See .claude/guides/architecture.md for the full layer responsibility table, dependency rules, and quick reference.