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【Typescript】FirebaseのGoogle認証を使用して、ユーザー情報を取得する

Posted at

async login () {
  try {
    const res = await auth.signInWithPopup(provider)

    //  Property 'email' does not exist on type 'Object'.
    const email = res.additionalUserInfo.profile.email
  }
}

上記のようにfirebaseで用意されているsignInWithPopup()を使用して、返り値であるユーザー情報を状態管理ライブラリに持たせようとしたら、型定義エラーが起きてずっとハマっていました。

解決法

auth.currentUserで現在ログイン中のユーザー情報を取得できる


async login () {
  try {
    await auth.signInWithPopup(provider)

    this.email = auth.currentUser?.email
    this.name = auth.currentUser?.displayName
  } catch (e) {
    throw new Error('ログインに失敗 ')
  }
}
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