Tag: Tutorial

Preview images with URL.createObjectURL and upload safely.

Use Firebase for auth, database, and storage in React apps.

Sign users in with email/password or providers via Firebase Auth.

Read/write documents and listen to realtime snapshots.

Upload user files to Firebase Storage and store download URLs.

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.