CODE EXAMPLE FOR JAVASCRIPT

protected route in react js

import React from 'react'
import { Redirect, Route } from 'react-router-dom'

const Protected = ({ component, ...rest }) => {
	<Route
		{...rest}
		render={() => {
			localStorage.getItem('login') ? (
				<component {...props} />
			) : (
				<Redirect to='/login' />
			)
		}}
	/>
};
export default Protected


// app.js 
import Protected from'./components/Protected'

<Router>
<Protected exact path="/"component={Home}/>
<Protected exact path="/about"component={About}/>
<Protected exact path="/contact"component={Contact}/>
</Router>