auth_facebook_checksameuser.js

// This snippet file was generated by processing the source file:
// ./auth-next/facebook.js
//
// To update the snippets in this file, edit the source and then run
// 'npm run snippets'.

// [START auth_facebook_checksameuser_modular]
import { FacebookAuthProvider } from "firebase/auth";

function isUserEqual(facebookAuthResponse, firebaseUser) {
  if (firebaseUser) {
    const providerData = firebaseUser.providerData;
    for (let i = 0; i < providerData.length; i++) {
      if (providerData[i].providerId === FacebookAuthProvider.PROVIDER_ID &&
          providerData[i].uid === facebookAuthResponse.userID) {
        // We don't need to re-auth the Firebase connection.
        return true;
      }
    }
  }
  return false;
}
// [END auth_facebook_checksameuser_modular]