Using Firebase reauthenticate
The reauthenticate()
method is called on a firebase.User, not on firebase.auth.Auth itself.
var user = firebase.app.auth().currentUser;
var credentials = firebase.auth.EmailAuthProvider.credential('[email protected]', 'firebase');
user.reauthenticate(credentials);
Update (July 2017):
There are some breaking change in the 4.0 version of the Firebase Web SDK. From the release notes:
BREAKING:
firebase.User.prototype.reauthenticate
has been removed in favor offirebase.User.prototype.reauthenticateWithCredential
.
As far as I can tell the reauthenticateWithCredential
is a drop-in replacement for the old method.
Here's some code that enabled users to (a) reauthenticate in Firebase and (b) change their passwords after reauthenticating for me. I researched for about an hour while writing this, so hopefully it saves someone a minute.
Wrote in VueJS:
changePassword() {
let self = this; // i use "self" to get around scope issues
var user = firebase.auth().currentUser;
var credential = firebase.auth.EmailAuthProvider.credential(
this.$store.state.userId, // references the user's email address
this.oldPassword
);
user.reauthenticateWithCredential(credential)
.then(function() {
// User re-authenticated.
user.updatePassword(self.newPassword)
.then(function() {
console.log("Password update successful!");
})
.catch(function(error) {
console.log(
"An error occurred while changing the password:",
error
);
});
})
.catch(function(error) {
console.log("Some kinda bug: ", error);
// An error happened.
});