canvasManagement/nextjs/src/app/providers.tsx

"use client";
import {
  isServer,
  QueryClient,
  QueryClientProvider,
} from "@tanstack/react-query";
import { ReactNode } from "react";
import { ReactQueryDevtools } from "@tanstack/react-query-devtools";

function makeQueryClient() {
  return new QueryClient({
    defaultOptions: {
      queries: {
        // With SSR, we usually want to set some default staleTime
        // above 0 to avoid refetching immediately on the client
        staleTime: 1000,
      },
    },
  });
}

let browserQueryClient: QueryClient | undefined = undefined;

function getQueryClient() {
  if (isServer) {
    // Server: always make a new query client
    return makeQueryClient();
  } else {
    // Browser: make a new query client if we don't already have one
    // This is very important, so we don't re-make a new client if React
    // suspends during the initial render. This may not be needed if we
    // have a suspense boundary BELOW the creation of the query client
    if (!browserQueryClient) browserQueryClient = makeQueryClient();
    return browserQueryClient;
  }
}

export default function Providers({ children }: { children: ReactNode }) {
  // NOTE: Avoid useState when initializing the query client if you don't
  //       have a suspense boundary between this and the code that may
  //       suspend because React will throw away the client on the initial
  //       render if it suspends and there is no boundary

  const queryClient = getQueryClient();

  return (
    <QueryClientProvider client={queryClient}>
      <ReactQueryDevtools initialIsOpen={false} />
      {children}
    </QueryClientProvider>
  );
}