"firebase.auth.EmailAuthProvider.credential" is undefined (React Native) - reactjs

Question

I've been working on my first React Native project using Firebase Auth (plain email&password only).
Signing-in, Signing-out, Resetting passwords, etc... everything is fine, but I'm stuck with one thing and I need help with deleting user.
Because deleting user is a "sensitive" request, Firebase Auth demands re-authenticating the user before actually deleting the user.
This is where I can't figure out how to do it. Even the docs don't tell much. They literally say: "TODO(you): prompt the user to re-provide their sign-in credentials".
ErrorMessage :
TypeError: undefined is not an object (evaluating '_firebase.auth.EmailAuthProvider.credential')
My firebase.js :
import firebase from 'firebase';
const firebaseConfig = { //key hidden here for security reasons
apiKey: apiKey,
authDomain: authDomain,
projectId: projectId,
storageBucket: storageBucket,
messagingSenderId: messagingSenderId,
appId: appId,
measurementId: measurementId
};
const app = !firebase.apps.length
? firebase.initializeApp(firebaseConfig)
: firebase.app();
const db = app.firestore();
const auth = firebase.auth();
export {db, auth};
My component.js :
...
import { auth } from '../firebase/firebase';
...
const deleteUser = () => {
const user = auth.currentUser;
const credential = auth.EmailAuthProvider.credential(userEmail,userProvidedPassword);
user.reauthenticateWithCredential(credential).then(() => {
user.delete().then(() => {
auth.signOut();
}).catch((error) => {
console.log(error.message);
});
}).catch((error) => {
console.log(error.message);
});
}

Answer 1

You cannot delete users from the front-end React Native!
Instead, there is firebase admin SDK which allows you to delete users but it has to be done from the backend. I believe this link to Firebase Admin SDK will answer your questions.
Also, do check Firebase Cloud Functions if you don't have a backend and you are just relying on Firebase.
Cloud Functions allows you to create a function in Firebase that you can call from React Native using Firebase SDK and perform delete user operation also you could watch for a collection and send notification and do more stuff!
And it is simple than it sounds!