[codex] Gate React Query devtools behind dev toggle

packages/web/src/app/AppProviders.tsx

@@ -15,6 +15,7 @@ import {
 import { PersistGate } from 'redux-persist/integration/react'
 import { WagmiProvider } from 'wagmi'
 
+import { REACT_QUERY_DEVTOOLS_KEY, useDevToggle } from 'hooks/useDevToggle'
 import { useIsMobile } from 'hooks/useIsMobile'
 import { env } from 'services/env'
 import { queryClient } from 'services/query-client'
@@ -41,6 +42,10 @@ type AppProvidersProps = {
 
 export const AppProviders = ({ children }: AppProvidersProps) => {
   const isMobile = useIsMobile()
+  const [reactQueryDevtoolsEnabled] = useDevToggle(
+    REACT_QUERY_DEVTOOLS_KEY,
+    false
+  )
 
   const [{ store, persistor }] = useState(() => {
     const theme = getTheme()
@@ -95,7 +100,7 @@ export const AppProviders = ({ children }: AppProvidersProps) => {
             </PersistGate>
           </ReduxProvider>
         </MediaProvider>
-        <ReactQueryDevtools />
+        {reactQueryDevtoolsEnabled ? <ReactQueryDevtools /> : null}
       </QueryClientProvider>
     </WagmiProvider>
   )

packages/web/src/hooks/useDevToggle.ts

@@ -0,0 +1,58 @@
+import { useCallback, useEffect, useState } from 'react'
+
+const CHANGE_EVENT = 'audius:dev-toggle-change'
+
+const read = (key: string, defaultValue: boolean): boolean => {
+  if (typeof window === 'undefined') return defaultValue
+
+  try {
+    const raw = window.localStorage.getItem(key)
+    if (raw === null) return defaultValue
+    return raw === 'true'
+  } catch {
+    return defaultValue
+  }
+}
+
+export const useDevToggle = (
+  key: string,
+  defaultValue: boolean
+): [boolean, (next: boolean) => void] => {
+  const [value, setValue] = useState(() => read(key, defaultValue))
+
+  useEffect(() => {
+    const sync = (event: Event) => {
+      if (event instanceof CustomEvent && event.detail?.key === key) {
+        setValue(read(key, defaultValue))
+      }
+
+      if (event instanceof StorageEvent && event.key === key) {
+        setValue(read(key, defaultValue))
+      }
+    }
+
+    window.addEventListener(CHANGE_EVENT, sync)
+    window.addEventListener('storage', sync)
+
+    return () => {
+      window.removeEventListener(CHANGE_EVENT, sync)
+      window.removeEventListener('storage', sync)
+    }
+  }, [key, defaultValue])
+
+  const set = useCallback(
+    (next: boolean) => {
+      try {
+        window.localStorage.setItem(key, String(next))
+      } catch {}
+
+      setValue(next)
+      window.dispatchEvent(new CustomEvent(CHANGE_EVENT, { detail: { key } }))
+    },
+    [key]
+  )
+
+  return [value, set]
+}
+
+export const REACT_QUERY_DEVTOOLS_KEY = 'audius-react-query-devtools-enabled'

packages/web/src/pages/dev-tools/DevTools.tsx

@@ -9,6 +9,7 @@ import {
   IconShieldCheck,
   IconDashboard,
   IconFanClub,
+  IconRefresh,
   IconUser,
   Paper,
   Text,
@@ -19,6 +20,7 @@ import { useNavigate } from 'react-router'
 
 import { Header } from 'components/header/desktop/Header'
 import { Page } from 'components/page/Page'
+import { REACT_QUERY_DEVTOOLS_KEY, useDevToggle } from 'hooks/useDevToggle'
 import { env } from 'services/env'
 
 import { messages } from './messages'
@@ -102,6 +104,8 @@ export const DevTools = () => {
   const dispatch = useDispatch()
   const navigate = useNavigate()
   const { onOpen: openCoinSuccessModal } = useCoinSuccessModal()
+  const [reactQueryDevtoolsEnabled, setReactQueryDevtoolsEnabled] =
+    useDevToggle(REACT_QUERY_DEVTOOLS_KEY, false)
 
   const handleOpenFeatureFlags = () => {
     dispatch(
@@ -217,6 +221,20 @@ export const DevTools = () => {
             buttonText={messages.coinSuccessModalPreviewButton}
             onButtonClick={handleOpenCoinSuccessModalPreview}
           />
+
+          <DevToolCard
+            icon={IconRefresh}
+            title={messages.reactQueryDevtoolsTitle}
+            description={messages.reactQueryDevtoolsDescription}
+            buttonText={
+              reactQueryDevtoolsEnabled
+                ? messages.reactQueryDevtoolsDisable
+                : messages.reactQueryDevtoolsEnable
+            }
+            onButtonClick={() =>
+              setReactQueryDevtoolsEnabled(!reactQueryDevtoolsEnabled)
+            }
+          />
         </Flex>
       </Box>
     </Page>

packages/web/src/pages/dev-tools/messages.ts

@@ -46,5 +46,10 @@ export const messages = {
   coinSuccessModalPreviewTitle: 'Coin success modal',
   coinSuccessModalPreviewDescription:
     'Open the post-launch fan club success dialog with sample coin data (UI preview only).',
-  coinSuccessModalPreviewButton: 'Open coin success modal'
+  coinSuccessModalPreviewButton: 'Open coin success modal',
+  reactQueryDevtoolsTitle: 'React Query Devtools',
+  reactQueryDevtoolsDescription:
+    'Show the floating React Query devtools button for inspecting queries, mutations, and cache state. Off by default.',
+  reactQueryDevtoolsEnable: 'Show Devtools Button',
+  reactQueryDevtoolsDisable: 'Hide Devtools Button'
 }