guild_front/src/App.js

import React, { Suspense, lazy } from 'react'
import { BrowserRouter as Router, Route, Switch } from 'react-router-dom'
import 'bootstrap/dist/css/bootstrap.min.css'

const AuthPage = lazy(() => import('./pages/AuthPage'))
const HomePage = lazy(() => import('./pages/HomePage'))
const CandidatePage = lazy(() => import('./pages/CandidatePage'))

const App = () => {
  const isAuth = true
  return (
    <Router>
      <Suspense fallback={<div>Loading...</div>}>
        {isAuth ? (
          <Switch>
            <Route path="/" exact component={HomePage} />
            <Route path="/candidate/:id" component={CandidatePage} />
            <Route compoent={<div>Not found page</div>} />
          </Switch>
        ) : (
          <Route path="/" exact component={AuthPage} />
        )}
      </Suspense>
    </Router>
  )
}

export default App