react-firehooks/lib/auth/useAuthIdToken.js

Lightweight dependency-free collection of React hooks for Firebase

import { getIdToken, onIdTokenChanged } from "firebase/auth";
import { useListen } from "../internal/useListen.js";
import { LoadingState } from "../internal/useLoadingValue.js";
const onChange = (stableAuth, next, error) => onIdTokenChanged(stableAuth, async (user) => {
    if (user) {
        try {
            // Can also be accessed via `user.accessToken`, but that's not officially documented
            const idToken = await getIdToken(user);
            next(idToken);
        }
        catch (e) {
            error(e);
        }
    }
    else {
        next(null);
    }
});
/**
 * Returns and updates the JWT of the currently authenticated user
 * @param auth Firebase Auth instance
 * @returns JWT, loading state, and error
 * - value: JWT; `undefined` if the JWT is currently being fetched, or an error occurred
 * - loading: `true` while fetching the JWT; `false` if the JWT was fetched successfully or an error occurred
 * - error: `undefined` if no error occurred
 */
export function useAuthIdToken(auth) {
    return useListen(auth, onChange, () => true, LoadingState);
}