DART

change password firebase flutter

Here's the latest method to change the password in firebase futter 2022
 
 Future<bool> _changePassword(String currentPassword, String newPassword) async {
    bool success = false;

    //Create an instance of the current user.
    var user = await FirebaseAuth.instance.currentUser!;
    //Must re-authenticate user before updating the password. Otherwise it may fail or user get signed out.

    final cred = await EmailAuthProvider.credential(email: user.email!, password: currentPassword);
    await user.reauthenticateWithCredential(cred).then((value) async {
      await user.updatePassword(newPassword).then((_) {
        success = true;
        usersRef.doc(uid).update({"password": newPassword});
      }).catchError((error) {
        print(error);
      });
    }).catchError((err) {
      print(err);
    });

    return success;
  }

change password firebase flutter

import 'package:http/http.dart' as http;
import 'dart:convert';
import 'dart:async';

Future<Null> changePassword(String newPassword) async {
  const String API_KEY = 'YOUR_API_KEY';
  final String changePasswordUrl =
      'https://www.googleapis.com/identitytoolkit/v3/relyingparty/setAccountInfo?key=$API_KEY';

      final String idToken = await user.getIdToken(); // where user is FirebaseUser user

    final Map<String, dynamic> payload = {
      'email': idToken,
      'password': newPassword,
      'returnSecureToken': true
    };

  await http.post(changePasswordUrl, 
    body: json.encode(payload), 
    headers: {'Content-Type': 'application/json'},  
  )
}