Create private/protected route in react using react router v4

privateRoute.js

import { Switch, Route, Redirect } from "react-router-dom";

export const PrivateRoute = ({ component: Component, ...rest }) => (
  <Route
    {...rest}
    render={props =>
      props.isLoggedIn === true ? (
        <Component {...props} />
      ) : (
        <Redirect
          to={{
            pathname: "/",
            state: { from: props.location }
          }}
        />
      )
    }
  />
);

How to use this component,

let isLoggedIn = false;

<PrivateRoute
  isLoggedIn={isLoggedIn}
  path="/editList/:id"
  component={EditList}
/>;