Firebase user PERMISSION_DENIED: Permission denied

Question

am using firebase authentication, I refer this link

"users": {
        ".read": "auth != null && root.child('admins').child(auth.uid).val() == true",
        ".write": "auth != null && (root.child('admins').child(auth.uid).val() == true)",
        "$uid": {
          ".read": "auth != null && (auth.uid == $uid || root.child('admins').child(auth.uid).val() == true)",
          ".write": "auth != null && (auth.uid == $uid || root.child('admins').child(auth.uid).val() == true)"
        }
      },

This is my firebase user table rules.

my services.js

signupUser: function(newUser) {
          var secondaryApp = firebase.initializeApp(FirebaseAppConfig, "Secondary");
          var usersRef = firebase.database().ref().child('users');
          return secondaryApp.auth()
          .createUserWithEmailAndPassword(newUser.email, newUser.password)
          .then(function(firebaseUser) {
            secondaryApp.auth().signOut();

            var newUserWithoutPwd = _.extend({}, newUser);
            delete newUserWithoutPwd.password;
            return usersRef
            .child(firebaseUser.uid)
            .set(newUserWithoutPwd)
            .then(function() {
              return newUserWithoutPwd;
            });
          });
        },

Authendication is success. But user table show in permission denied error.

Show below screen shot

Based on what do you think that the user has permission to write? — Frank van Puffelen, Apr 12 '17 at 11:56

score 3 · Answer 1 · answered Apr 12 '17 at 11:59

My guess is that you want the newly created user to write their user profile to the database. In that case it is important that:

you write the profile data as the current user: firebase.database(secondaryApp).ref().child('users')
you don't sign out the user, until the writing is completed

In code:

signupUser: function(newUser) {
      var secondaryApp = firebase.initializeApp(FirebaseAppConfig, "Secondary");
      var usersRef = secondaryApp.database().ref().child('users');
      return secondaryApp.auth()
      .createUserWithEmailAndPassword(newUser.email, newUser.password)
      .then(function(firebaseUser) {
        var newUserWithoutPwd = _.extend({}, newUser);
        delete newUserWithoutPwd.password;
        return usersRef
          .child(firebaseUser.uid)
          .set(newUserWithoutPwd)
          .then(function() {
            secondaryApp.auth().signOut();
            return newUserWithoutPwd;
          });
      });
    },

score 1 · Accepted Answer · answered Apr 26 '17 at 14:21

Remove secondaryApp.auth().signOut();

Update this return firebase.database(secondaryApp).ref().child('users').

signupUser: function(newUser) {
var secondaryApp = firebase.initializeApp(FirebaseAppConfig, "Secondary");
return secondaryApp.auth()
  .createUserWithEmailAndPassword(newUserInsert.email, newUserInsert.password)
  .then(function(firebaseUser) {
    var newUserWithoutPwd = _.extend({}, newUserInsert);
    delete newUserWithoutPwd.password;

    return firebase.database(secondaryApp).ref().child('users')
     .child(firebaseUser.uid)
     .set(newUserWithoutPwd)
     .then(function() {
   return newUserWithoutPwd;
   });
});
},

Firebase user PERMISSION_DENIED: Permission denied

2 Answers2