Firebase kicks out current user

Question

So I have this issue where every time I add a new user account, it kicks out the current user that is already signed in. I read the firebase api and it said that \"I

Answer 1

I just created a Firebase Function that triggers when a Firestore document is Created (with rules write-only to admin user). Then use admin.auth().createUser() to create the new user properly.

export const createUser = functions.firestore
.document('newUsers/{userId}')
.onCreate(async (snap, context) => {
    const userId = context.params.userId;
    const newUser = await admin.auth().createUser({
        disabled: false,
        displayName: snap.get('displayName'),
        email: snap.get('email'),
        password: snap.get('password'),
        phoneNumber: snap.get('phoneNumber')
    });
    // You can also store the new user in another collection with extra fields
    await admin.firestore().collection('users').doc(newUser.uid).set({
        uid: newUser.uid,
        email: newUser.email,
        name: newUser.displayName,
        phoneNumber: newUser.phoneNumber,
        otherfield: snap.get('otherfield'),
        anotherfield: snap.get('anotherfield')
    });
    // Delete the temp document
    return admin.firestore().collection('newUsers').doc(userId).delete();
});

You can Algo use functions.https.onCall()

exports.createUser= functions.https.onCall((data, context) => {
    const uid = context.auth.uid; // Authorize as you want
    // ... do the same logic as above
});

calling it.

const createUser = firebase.functions().httpsCallable('createUser');
createUser({userData: data}).then(result => {
    // success or error handling
});