`useProfile`

import { useProfile } from '@farcaster/auth-kit';

function App() {
  const {
    isAuthenticated,
    profile: { username, fid, bio, displayName, pfpUrl },
  } = useProfile();

  return (
    <div>
      {isAuthenticated ? (
        <p>
          Hello, {username}! Your fid is: {fid}
        </p>
      ) : (
        <p>You're not signed in.</p>
      )}
    </div>
  );
}

  {
    isAuthenticated: boolean;
    profile?: {
        fid?: number;
        username?: string;
        bio?: string;
        displayName?: string;
        pfpUrl?: string;
        custody?: Hex;
        verifications?: Hex[];
    },
  };