firebase-twitter-login.js

import { firebaseAuth, firebaseDb } from '../../lib/firebase'

constructor(props) {
    super(props)

    this.provider = new firebaseAuth.TwitterAuthProvider()
}

handleTwitterLogin(event) {
    firebaseAuth().signInWithPopup(this.provider)
      .then((result) => {
        firebaseDb.ref('credentials/' + result.user.uid)
          .set({
            userId: result.user.uid,
            twitterAccessToken: result.credential.accessToken,
            twitterSecret: result.credential.secret,
            twitterIdStr: result.additionalUserInfo.profile.id_str
          })
      })
      .catch((error) => {
        console.error("Firebase sign-in error:", error)
      })

  }