i dont know

package-lock.json

@@ -8,7 +8,6 @@
       "name": "store-client",
       "version": "0.0.0",
       "dependencies": {
-        "@tanstack/react-query": "^5.100.14",
         "react": "^19.1.0",
         "react-dom": "^19.1.0"
       },
@@ -1305,32 +1304,6 @@
         "win32"
       ]
     },
-    "node_modules/@tanstack/query-core": {
-      "version": "5.100.14",
-      "resolved": "https://registry.npmjs.org/@tanstack/query-core/-/query-core-5.100.14.tgz",
-      "integrity": "sha512-5X41dGpxgeaHISCRW2oYwcSycZeULZzAunaudXT9ov1KOTj9xwt0CH6hbwqP1/z74ZWF7rYFnDpyYH07XFcZew==",
-      "license": "MIT",
-      "funding": {
-        "type": "github",
-        "url": "https://github.com/sponsors/tannerlinsley"
-      }
-    },
-    "node_modules/@tanstack/react-query": {
-      "version": "5.100.14",
-      "resolved": "https://registry.npmjs.org/@tanstack/react-query/-/react-query-5.100.14.tgz",
-      "integrity": "sha512-oOr6aRdSFEwWhzxEkD/9ZcItM3+LjBSkeVmadWKwUssAHTsqd/7bOjWrX4AbvEkoEhgAxzN0Xk6H/aYzXiYBAw==",
-      "license": "MIT",
-      "dependencies": {
-        "@tanstack/query-core": "5.100.14"
-      },
-      "funding": {
-        "type": "github",
-        "url": "https://github.com/sponsors/tannerlinsley"
-      },
-      "peerDependencies": {
-        "react": "^18 || ^19"
-      }
-    },
     "node_modules/@types/babel__core": {
       "version": "7.20.5",
       "resolved": "https://registry.npmjs.org/@types/babel__core/-/babel__core-7.20.5.tgz",

package.json

@@ -4,13 +4,12 @@
   "version": "0.0.0",
   "type": "module",
   "scripts": {
-    "dev": "vite",
+    "dev": "vite", 
     "build": "vite build",
     "lint": "eslint .",
     "preview": "vite preview"
   },
   "dependencies": {
-    "@tanstack/react-query": "^5.100.14",
     "react": "^19.1.0",
     "react-dom": "^19.1.0"
   },

src/App.jsx

@@ -1,93 +1,44 @@
-import React, {useState, useEffect, useRef } from 'react'
+import { useMutation, QueryClientProvider, QueryClient } from '@tanstack/react-query'
-//import { useQuery } from '@tanstack/react-query'
+import PostAddForm from './components/PostAddForm'
 
-function useWindowWidth() {
-    const [width,setWidth] = useState(window.innerWidth)
-    
-    useEffect(() => {
-        const handleResize = () => setWidth(window.innerWidth);
-        window.addEventListener('resize',handleResize);
-        return () => window.removeEventListener('resize',handleResize);
-    },[])
-    
-    return width
-}
-
-function useLocalStorage(key, initValue) {
-    const [value, setValue] = useState(()=>{
-        const stored = localStorage.getItem(key);
-        return stored !== null ? JSON.parse(stored) : initValue
-    })
-    
-    useEffect(() => {
-        localStorage.setItem(key, JSON.stringify(value))
-    },[key, value])
-    
-    return [value,setValue]
-}
 /*
-function useUserData(userId) {
+const mutation = useMutation({
-    return useQuery(
+    mutationFn: newUser => {
-        ['user',userId],
+        fetch('https://jsonplaceholder.typicode.com/users', {
-        () => fetch(`/api/user/${userId}`).then(res => res.json()),
+            method: 'GET',
-        {refetchOnWindowFocus: false}
+            headers: {'Content-type':'application/json'},
-    )
+            body: JSON.stringify(newUser),
-}*/
+        }).then(res => res.json())
-
-function useInput(initValue, validate) {
-    const [value, setValue] = useState(initValue);
-    const [error, setError] = useState(null);
-    
-    const onChange = e => {
-        const newValue = e.target.value
-        setValue(newValue)
-        if (validate) {
-            const validationResult = validate(newValue)
-            setError(validationResult)
-        }
     }
-    
+})
-    return { value, error, onChange }
+*/
-}
 
-function useInterval(callback, delay) {
+const createQueryClient = () => {
-    const savedCallback = useRef()
+    new QueryClient({
-    
+        defaultOptions: {
-    useEffect(()=>{
+            queries: {
-        savedCallback.current = callback
+                staleTime: 5 * 60*1000,
-    },[callback]);
+                retry: 1,
-    
+                gcTime: 10*60*1000,
-    useEffect(()=>{
+                refetchOnWindowFocus: false,
-        if (delay == null) return
+            },
-        const id = setInterval(()=>{
+            mutations: {
-            savedCallback.current()
+                retry:0,
-        },delay);
+                onError: error => {console.error('Mutation error:',error.message)}
-        return () => clearInterval(id);
+            }
-    },[delay])
+        }
+    })
 }
 
 function App() {
-    const width = useWindowWidth();
-    const [theme, setTheme] = useLocalStorage('theme','light');
-    
-    const username = useInput(
-        '',
-        value => value.length < 3 ? 'минимум 3 символа' : null
-    )
-    
 	return (
 		<>
-			<h1>Hello, React!{width}</h1>
+			{/* Добавьте тестовый контент для проверки */}
-            <button onClick={()=>{
+			<h1>Hello, React!</h1>
-                setTheme(theme === 'light' ? 'dark' : 'light')
+        <QueryClientProvider client={createQueryClient}>
-            }}>
+            <PostAddForm />
-                Сменить тему
+        </QueryClientProvider>
-            </button>
+            
-            <p><input type="text" 
-                value={username.value} 
-                onChange={username.onChange} />
-                { username.error ? username.error : '' }
-            </p>
 		</>
 	)
 }