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Firebase auth - login user from app in website


Firebase auth - login user from app in website

By : Ngx
Date : November 19 2020, 03:01 PM
Hope this helps The common way to do this right now is as follows:
After the user signs in in one website, get the ID token via currentUser.getIdToken() Post the ID token to your backend to serve the destination website. On your backend, using Admin SDK, get the ID token, verify it, check the auth_time to make sure it is a recent login to minimize any window of attack. If everything checks out, mint a custom token via admin sdk createCustomToken. Return the custom token to the website. On the client side, sign in with custom token: signInWithCustomToken and the same user is now signed in on the website.
code :


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Empty email field of Firebase Auth User using Facebook Login Integration (Firebase 3.0)

Empty email field of Firebase Auth User using Facebook Login Integration (Firebase 3.0)


By : SOLER
Date : March 29 2020, 07:55 AM
To fix this issue after reading post in firebase-talk google group here https://groups.google.com/forum/#!topic/firebase-talk/gPGNq-IkTLo, I found out the answer. The issue was happened because I'm using "Allow creation of multiple accounts with the same email address" in Firebase Auth sign-in method.
So I change the option into: "Prevent creation of multiple accounts with the same email address" can it's working properly now. It's simple as that. It's true I need more logic to merge accounts having the same email address, but it's okay.
firebase-collection won't refresh data on firebase-auth login, if location doesn't include user value

firebase-collection won't refresh data on firebase-auth login, if location doesn't include user value


By : Darren
Date : March 29 2020, 07:55 AM
Hope that helps You could use a dom-if to stamp firebase-collection conditionally on user:
code :
<template is="dom-if" if="[[user]]" restamp>
  <firebase-collection
    location="[[firebaseURL]]"
    data="{{messages}}">
  </firebase-collection>
<template>
Action after user login in Firebase Auth in Angular2

Action after user login in Firebase Auth in Angular2


By : Samy
Date : March 29 2020, 07:55 AM
will help you Maybe this is because you are using this keyword in callback function which has its own variable scope and it does not have af.auth property.
Try this.
code :
public login() {
    var me = this;
    this.af.auth.login()
      .then(() => {
        console.log("user logged in");
        console.log(me.af.auth);
      });
}
this.af.auth.subscribe(auth => {
  if(auth) {
    console.log('logged in');
  } else {
    console.log('not logged in');
  }
});
Firebase Auth check if new user on Facebook login

Firebase Auth check if new user on Facebook login


By : Karthik M
Date : March 29 2020, 07:55 AM
I wish did fix the issue. I am creating a web app using Firebase auth to authenticate my users and a MongoDB database to store some relevant user information specific to my site. I am trying to add Facebook as another means of authentication. , You can detect if a user is new or existing as follows:
code :
firebase.auth().signInWithPopup(provider)
  .then(function(result) {
    console.log(result.additionalUserInfo.isNewUser);
  })
  .catch(function(error) {
    // Handle error.
  });
Firebase user merge auth providers at login

Firebase user merge auth providers at login


By : veve
Date : March 29 2020, 07:55 AM
I wish this helpful for you No entries are automatically created in the Firebase Database when a user signs in to Firebase Authentication. If your app creates such entries, you have code that does it for you. That's quite common, but not automatic.
If you're looking to allow the users to sign in to the same account with any supported provider, you're looking for account linking. It is documented here: https://firebase.google.com/docs/auth/web/account-linking
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