createServerFn() | GET (default) — idempotent, cacheable data fetching |
createServerFn({ method: 'POST' }) | Mutations that change data |
.inputValidator(zodSchema) | Input validation before handler |
.handler(async ({ data }) => {}) | Server-side logic with typed input data |
getRequest() | Access full incoming Request inside handler/middleware |
getRequestHeader(name) | Read a single request header by name |
setResponseHeaders(headers) | Set outgoing response headers (caching, cookies) |
useServerFn(fn) | Wrap server function for component use with pending state |
createMiddleware().server(fn) | Request middleware for cross-cutting concerns |
.middleware([dep]) | Compose middleware with dependencies |
next({ context: {} }) | Pass data downstream through middleware chain |
createMiddleware({ type: 'function' }) | Function-level middleware with input validation |
requestMiddleware in createStart() | Global middleware for all requests (SSR, fns, routes) |
functionMiddleware in createStart() | Global middleware for server functions only |
createIsomorphicFn() | Different implementations per environment |
createServerOnlyFn() | Server-only utility — crashes if called from client |
createClientOnlyFn() | Client-only utility — crashes if called from server |
useSession() | Cookie-based session with encryption and secure settings |
session.update() | Update session data |
session.clear() | Clear session (logout) |
beforeLoad | Auth check before route loads |
_authenticated.tsx | Pathless layout route for grouped protection |
throw redirect({ to: '/login' }) | Redirect with return URL |
await ensureQueryData() | Block SSR on critical data |
prefetchQuery() | Start fetch, don't block SSR |
<Suspense> boundaries | Define streaming chunks |
head: ({ loaderData }) => ({}) | Meta tags, Open Graph, favicons |
head.scripts + JSON-LD | Structured data for LLMO (schema.org) |
llms.txt server route | AI system guidance file |
headers: () => ({...}) | ISR / cache-control on route definition |
server: { handlers: { GET, POST } } | API routes on createFileRoute |
ssr: false | Disable SSR for specific routes (SPA mode) |
