React,Express and node js post request not works - node.js

Question

I have a problem with code actually server not receives JSON or receives JSON as text
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app.js:
const config = require("config");
const express = require('express')
const bodyParser = require('body-parser');
const app = express()
app.use(bodyParser.json()) //express.json was tried
app.use(bodyParser.text()) // if do not using this json null
app.use('/api/auth',require("./routes/auth.route"))
auth.route.js
const {Router} = require("express");
const config = require("config");
const bcrypt = require("bcrypt");
const jwt = require("jsonwebtoken");
const {body,validationResult} = require("express-validator");
const User = require("../models/User");
const router = Router();
//api / auth/register
router.post(
'/register',
[
body("email",'Wrong Email').notEmpty().isEmail(),
// check('password','Min Char count is 6, Password incorrect').isLength({min:6})
],
async (req,res)=>{
console.log("body",req.body)
console.log("email",req.body['email'])
req.body = JSON.parse(req.body);
console.log("body",req.body)
console.log("email",req.body['email'])
const validationErrors = validationResult(req);
console.log(validationErrors.array())
if(!validationErrors.isEmpty())
return res.status(401).json({arguments: validationErrors.array(),type:"wrongInputData"});
console.log(2)
})
and client:
import {useState, useCallback} from 'react';
const urlStart = "http://localhost:5000";
export const useHttp = () =>{
const [loadings,setLoading] = useState(false);
const [setError] = useState(null);
const request =useCallback(async (url, method = 'GET',body = null) =>{
setLoading(true);
try {
if(body) {
body = JSON.stringify(body);
}
url = urlStart+url
const response = await fetch(url,{method: method, body: body,
headers: {'Content-Type': 'application/json'},
mode:'no-cors',cache: 'no-cache',});
const data = await response.json();
if(!response.ok){
throw new Error("Smth wrong : "+data?.message);
}
setLoading(false);
return data;
}catch (e) {
setLoading(false);
setError(e.message);
throw e;
}
},[]);
const clearError = () => setError(null);
return { loadings, request,clearError}
}