Add setting for opting in to beta features (#11123)

src/state/queries/preferences/const.ts

@@ -50,6 +50,7 @@ export const DEFAULT_LOGGED_OUT_PREFERENCES: UsePreferencesQueryResponse = {
     queuedNudges: [],
     activeProgressGuide: undefined,
     nuxs: [],
+    isBetaUser: undefined,
   },
   postInteractionSettings: {
     threadgateAllowRules: undefined,

src/state/queries/preferences/index.ts

@@ -438,6 +438,21 @@ export function useSetActiveProgressGuideMutation() {
   })
 }
 
+export function useSetIsBetaUserMutation() {
+  const queryClient = useQueryClient()
+  const agent = useAgent()
+
+  return useMutation({
+    mutationFn: async (isBetaUser: boolean) => {
+      await agent.setIsBetaUser(isBetaUser)
+      // triggers a refetch
+      await queryClient.invalidateQueries({
+        queryKey: preferencesQueryKey,
+      })
+    },
+  })
+}
+
 export function useSetVerificationPrefsMutation() {
   const ax = useAnalytics()
   const queryClient = useQueryClient()