tanstack-integration-best-practices
Best practices for integrating TanStack Query with TanStack Router and TanStack Start. Patterns for full-stack data flow, SSR, and caching coordination.
What this skill does
# TanStack Integration Best Practices Guidelines for integrating TanStack Query, Router, and Start together effectively. These patterns ensure optimal data flow, caching coordination, and type safety across the stack. ## When to Apply - Setting up a new TanStack Start project - Integrating TanStack Query with TanStack Router - Configuring SSR with query hydration - Coordinating caching between router and query - Setting up type-safe data fetching patterns ## Rule Categories by Priority | Priority | Category | Rules | Impact | |----------|----------|-------|--------| | CRITICAL | Setup | 3 rules | Foundational configuration | | CRITICAL | SSR Integration | 1 rule | Router + Query SSR setup | | HIGH | Data Flow | 4 rules | Correct data fetching patterns | | MEDIUM | Caching | 3 rules | Performance optimization | | MEDIUM | SSR | 2 rules | Additional SSR patterns | ## Quick Reference ### Setup (Prefix: `setup-`) - `setup-query-client-context` — Pass QueryClient through router context - `setup-provider-wrapping` — Correctly wrap with QueryClientProvider - `setup-stale-time-coordination` — Coordinate staleTime between router and query ### Data Flow (Prefix: `flow-`) - `flow-loader-query-pattern` — Use loaders with ensureQueryData - `flow-suspense-query-component` — Use useSuspenseQuery in components - `flow-mutations-invalidation` — Coordinate mutations with query invalidation - `flow-server-functions-queries` — Use server functions for query functions ### Caching (Prefix: `cache-`) - `cache-single-source` — Let TanStack Query manage caching - `cache-preload-coordination` — Coordinate preloading between router and query - `cache-invalidation-patterns` — Unified invalidation patterns ### SSR Integration (Prefix: `ssr-`) - `ssr-dehydrate-hydrate` — Use setupRouterSsrQueryIntegration for automatic SSR ### Additional SSR (Prefix: `ssr-`) - `ssr-per-request-client` — Create QueryClient per request - `ssr-streaming-queries` — Handle streaming with queries ## How to Use Each rule file in the `rules/` directory contains: 1. **Explanation** — Why this pattern matters 2. **Bad Example** — Anti-pattern to avoid 3. **Good Example** — Recommended implementation 4. **Context** — When to apply or skip this rule ## Full Reference See individual rule files in `rules/` directory for detailed guidance and code examples.
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