TanStack Query recipes
Feed shared updates into your existing query cache.
GraphQL over WebSocket · React Router
Before you start
Section titled “Before you start”Start with an existing React Router app. Keep its renderer, routes and plugins. These files add one live view; Spinetab does not create your API.
Your schema exposes Subscription.queue: Queue! with Queue.open: Int!. Each event contains the complete queue value. Serve the graphql-transport-ws protocol at /graphql. Queries and mutations, if used, go to /graphql. This is a GraphQL endpoint, not a plain SSE or WebSocket feed.
The examples use same-origin URLs and declare
anonymous: true: no token is supplied, although cookies
still flow. For a separate API origin, use its URL and configure CORS or
your application's proxy. For private data, add
credentials and user scopes;
never put a secret in these files.
1. Install
Section titled “1. Install”pnpm add spinetab graphql@^17.0.2 graphql-ws@^6.3.0 @tanstack/query-core@^5.104.0 @tanstack/react-query@^5.104.0Keep your framework's existing dependencies. See compatible versions if upgrading an older app.
2. Configure your app
Section titled “2. Configure your app”Merge this addition into your configuration; preserve existing plugins and options. Restart the dev server afterwards. The plugin bundles the worker and discovers the adapters imported below.
import { reactRouter } from "@react-router/dev/vite";import { spinetab } from "spinetab/vite";import { defineConfig } from "vite";
export default defineConfig({ plugins: [reactRouter(), spinetab()], optimizeDeps: { entries: ["app/**/*.{ts,tsx}"] },});3. Connect and render
Section titled “3. Connect and render”Save these files together in app/recipe/.
The provider owns a fresh QueryClient. If your app already has a provider, render Queue beneath it instead of creating another one. The query uses skipToken to read live cache updates without fetching a competing snapshot. The bridge uses that same client's ["queue"] key.
reconcile: "latest" fits this full-state contract: the next complete event restores the displayed value after a gap. Use a refresh/merge policy for deltas or partial GraphQL results. Reconnecting alone does not reconstruct missed state.
import { createSpinetab } from "spinetab";
export const spinetab = createSpinetab({ anonymous: true });export type Queue = { open: number };export type QueueView = { open?: number; problem?: string };import { parse } from "graphql";import { type GraphqlDocument, type GraphqlResult, graphqlWs,} from "spinetab/graphql-ws";import type { Queue, QueueView } from "./queue-types";
const document: GraphqlDocument< { queue: Queue }, Record<string, never>> = parse("subscription Queue { queue { open } }");
export const queueSource = graphqlWs("/graphql").subscription({ query: document,});
export function selectQueue( result: GraphqlResult<{ queue: Queue }>,): QueueView { return { open: result.data?.queue?.open, problem: result.errors?.map((error) => error.message).join("; ") || (result.data?.queue ? undefined : "The server returned no queue."), };}import type { QueryClient } from "@tanstack/query-core";import { bindQuery } from "spinetab/tanstack-query";import { spinetab } from "./live";import { queueSource, selectQueue } from "./source";
export function startQueue( queryClient: QueryClient, onError: (message: string) => void,) { return bindQuery(spinetab, queueSource, { queryClient, queryKey: ["queue"], map: selectQueue, reconcile: "latest", onError: (error) => onError(error.message), onEvent: () => onError(""), });}import { skipToken, useQuery, useQueryClient } from "@tanstack/react-query";import { useEffect, useState } from "react";import { startQueue } from "./feed";import type { QueueView } from "./queue-types";
export default function Queue() { const client = useQueryClient(); const { data } = useQuery<QueueView>({ queryKey: ["queue"], queryFn: skipToken, }); const [error, setError] = useState(""); useEffect(() => { const binding = startQueue(client, setError); return () => binding.unsubscribe(); }, [client]); if (error || data?.problem) return <p role="alert">{error || data?.problem}</p>; if (data?.open === undefined) return <p role="status">Loading queue…</p>; return ( <p> <output>{data.open}</output> open </p> );}import { QueryClient, QueryClientProvider } from "@tanstack/react-query";import { useState } from "react";import Queue from "./Queue";
export default function Recipe() { const [client] = useState(() => new QueryClient()); return ( <QueryClientProvider client={client}> <Queue /> </QueryClientProvider> );}4. Mount the view
Section titled “4. Mount the view”import Recipe from "../recipe/Recipe";export default function QueuePage() { return ( <main> <Recipe /> </main> );}import { type RouteConfig, route } from "@react-router/dev/routes";
export default [route("queue", "routes/queue.tsx")] satisfies RouteConfig;Keep your existing routes and root Outlet. The dependency-scan entries include route imports on a cold first visit. Declarative/Data Mode apps use the Vite recipe instead.
Check the result
Section titled “Check the result”Open /queue in two tabs of the same browser profile. Both should show advancing queue values. Matching subscriptions share upstream work when SharedWorker is available; fallback runs independently in each tab. Remove one view and the other should keep updating. Removing the last view releases its subscription; connection closure can follow the adapter's idle delay.