Created
October 22, 2019 13:56
-
-
Save glippi/9ee88bf59ba22c59bdf78db3fd5afc9c to your computer and use it in GitHub Desktop.
Example of lazy loading entry point of React App following Kent Dodds example
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import React, { Suspense, lazy, useEffect } from 'react'; | |
| import { LoadingSpinner } from './LoadingSpinner'; | |
| import { useUser } from '../context/UserContext'; | |
| const loadAuthenticatedApp = () => import('./AuthenticatedApp'); | |
| const AuthenticatedApp = lazy(loadAuthenticatedApp); | |
| const UnauthenticatedApp = lazy(() => import('./UnauthenticatedApp')); | |
| function App() { | |
| const { user, logout } = useUser(); | |
| // pre-load the authenticated side in the background while the user's | |
| // filling out the login form. | |
| useEffect(() => { | |
| loadAuthenticatedApp(); | |
| }, []); | |
| return ( | |
| <Suspense fallback={<LoadingSpinner />}> | |
| {user ? <AuthenticatedApp logout={logout} /> : <UnauthenticatedApp />} | |
| </Suspense> | |
| ); | |
| } | |
| export default App; |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment