Firebase Authentication で GitHub ID を取得する

import { getAuth, signInWithPopup, GithubAuthProvider } from "firebase/auth";

const auth = getAuth();
signInWithPopup(auth, provider).then((result) => {
  // The signed-in user info.
  const user = result.user;
  // ...
});

/**
 * User profile information, visible only to the Firebase project's apps.
 *
 * @public
 */
export declare interface UserInfo {
  /**
   * The display name of the user.
   */
  readonly displayName: string | null;
  /**
   * The email of the user.
   */
  readonly email: string | null;
  /**
   * The phone number normalized based on the E.164 standard (e.g. +16505550101) for the
   * user.
   *
   * @remarks
   * This is null if the user has no phone credential linked to the account.
   */
  readonly phoneNumber: string | null;
  /**
   * The profile photo URL of the user.
   */
  readonly photoURL: string | null;
  /**
   * The provider used to authenticate the user.
   */
  readonly providerId: string;
  /**
   * The user's unique ID, scoped to the project.
   */
  readonly uid: string;
}

const ghProvider = new GithubAuthProvider();
ghProvider.addScope("read:user");

signInWithPopup(firebaseAuth, provider)
  .then((result) => {
    const details = getAdditionalUserInfo(result);
    console.log(result);
    console.log(details);
  })
  .catch((error) => {
    console.log(error);
  });