create Router.js

+import React from "react";
+import PropTypes from "prop-types";
+import { BrowserRouter as Router, Route, Switch } from "react-router-dom";
+import Auth from "./Auth";
+import Home from "./Home";
+
+const LoggedInRoutes = () => (
+  <>
+    <Route exact path="/" component={Home} />
+  </>
+);
+
+const LoggedOutRoutes = () => (
+  <>
+    <Route exact path="/" component={Auth} />
+  </>
+);
+
+const AppRouter = ({ isLoggedIn }) => (
+  <Router>
+    <Switch>{isLoggedIn ? <LoggedInRoutes /> : <LoggedOutRoutes />}</Switch>
+  </Router>
+);
+
+AppRouter.propTypes = {
+  isLoggedIn: PropTypes.bool.isRequired,
+};
+
+export default AppRouter;