How should auth handle expired sessions?
Gracefully. Handle token refresh so users stay logged in, and when a session truly expires, show a clear message and redirect to login. Users should not be silently logged out without knowing why.
Verify This Answer
Cross-check this information using these trusted sources:
More FAQs in How to Add Authentication to a React App Before Deployment
Choose an auth approach like Firebase Auth, set up an AuthContext, build login and signup pages, protect routes, configure your deployed domain as an authorized domain, test the full flow, and handle token refresh and errors.
Firebase Auth for simplicity and speed, Auth0 for enterprise features, or a custom backend with JWTs for full control. Firebase is the fastest for a frontend-focused project and works well with React.
Because auth providers like Firebase only allow redirects from authorized domains. If you skip adding your deployed domain to the list, auth redirects will fail in production even though they work on localhost.
Still have questions?
Browse all our FAQs or reach out to our support team