Tag: React

Upload user files to Firebase Storage and store download URLs.

Upload files with FormData and multipart requests.

Build auth forms that call backend endpoints and store session state.

Send JWTs as Authorization bearer headers (or use cookie-based JWTs).

Call authenticated endpoints and handle authorization failures.

Persist client data with localStorage (theme, non-sensitive prefs).

Persist per-tab temporary data with sessionStorage.

Work with cookies carefully; prefer server-set httpOnly cookies for sessions.

Load and mutate remote data from components or custom hooks.

Call APIs with fetch inside useEffect or event handlers.