React-Redux logout modal/prompt on JWT expiry - reactjs

Question

My React-Redux app is using JWTs to handle authentication like so:
import axios from 'axios';
import { getLocalAccessToken, getLocalRefreshToken, updateLocalTokens } from './token-service';
async function attachAccessToken(reqConfig) {
const accessToken = getLocalAccessToken();
if (accessToken) reqConfig.headers.authorization = `Bearer ${accessToken}`;
return reqConfig;
}
export default (opts) => {
const API = axios.create(opts);
API.interceptors.request.use(attachAccessToken);
API.interceptors.response.use(
(res) => res.data,
async (err) => {
const { status, config: reqConfig, data: message } = err.response;
const isAuthTokenErr = !reqConfig.url.includes('/login') && status === 401 && !reqConfig._isRetried;
if (!isAuthTokenErr) return Promise.reject(message);
else {
reqConfig._isRetried = true;
try {
const { data: newTokens } = await axios.post('/auth/reauthorize', { refreshToken: getLocalRefreshToken() });
updateLocalTokens(newTokens);
return API(reqConfig); //retry initial request with new access token
} catch (reauthErr) {
const message = reauthErr.response.data;
return Promise.reject('Session expired. Please sign-in again');
}
}
}
);
return API;
};
Clients are given access to protected routes (views) as long as there is a user in the Redux store i.e.
import { Redirect, Route } from 'react-router-dom';
import { useSelector } from 'react-redux';
export default function ProtectedRoute({ component: Component, ...rest }) {
const isLoggedIn = useSelector(state => state.auth.user);
return (
<Route
{...rest}
render={(routeProps) => {
if (isLoggedIn) return <Component />;
else return <Redirect to="/auth/login" />;
}}
/>
);
}
When the refresh token expires, the client will no longer be able to access protected endpoints on the backend as desired.
That being said, on the frontend, the client remains logged in and able to access protected routes (views), albeit with no data loading.
My question is, for any given 401 unauthenticated response (apart from bad login credentials), how can I use the reauthErr to either:
a) Log the client out automatically i.e. clear the client's JWTs in LocalStorage as well as remove the user from the Redux store?
Or
b) more elegantly, prompt the client with a modal, for example, that their session has expired and that they will need to login again?
Thank you!