Published: September 09 2021

React - Redirect to Login Page if Unauthenticated

Tutorial built with React 17.0.2 and React Router 5.3.0

This is a super quick post to show how to redirect users to the login page in a React app that uses React Router. The redirect applies to users that attempt to access a secure/restricted page when they are not logged in.

The below components are part of a React JWT authentication tutorial I posted recently that includes a live demo, so to see the code running check out React + Recoil - JWT Authentication Tutorial & Example.


React Private Route Component

Path: /src/_components/PrivateRoute.jsx

The PrivateRoute component wraps the React Router Route component and implements authorization logic in the render function. The React component returned by the render function is rendered by the route component.

If the user is logged in the Component prop is rendered, otherwise if the user is not logged in the React Router Redirect component is rendered which redirects the user to the /login page. The requested path (props.location) is passed with the redirect in the state.from property so the login page can redirect the user back their desired page after successful login.

The current logged in (auth) state of the user is retrieved from Recoil global state with a call to useRecoilValue(authAtom).

import { Route, Redirect } from 'react-router-dom';
import { useRecoilValue } from 'recoil';

import { authAtom } from '_state';

export { PrivateRoute };

function PrivateRoute({ component: Component, }) {
    const auth = useRecoilValue(authAtom);
    return (
        <Route {} render={props => {
            if (!auth) {
                // not logged in so redirect to login page with the return url
                return <Redirect to={{ pathname: '/login', state: { from: props.location } }} />

            // authorized so return component
            return <Component {...props} />
        }} />

React App Component with Private Route

Path: /src/App.jsx

The App component is the root component of the example app, it contains the outer html, main nav and routes for the application.

The /login route is public, and the home route (/) is secured by the private route wrapper component that checks if the user is logged in before rendering.

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

import { Nav, PrivateRoute } from '_components';
import { history } from '_helpers';
import { Home } from 'home';
import { Login } from 'login';

export { App };

function App() {
    return (
        <div className="app-container bg-light">
            <Router history={history}>
                <Nav />
                <div className="container pt-4 pb-4">
                        <PrivateRoute exact path="/" component={Home} />
                        <Route path="/login" component={Login} />
                        <Redirect from="*" to="/" />


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