Problems on setting a name for individual firebase accounts via expo

How to set individual names for individual accounts? I have tried to set input boxes for user to type name when registering but after I have register and I did a console log. It says undefined. How do I solve this?

My code for RegisterScreen.js (Part of it)

import { StyleSheet, Text, View, KeyboardAvoidingView, TextInput, TouchableOpacity } from 'react-native'
import React from 'react'
import { useNavigation } from '@react-navigation/native';
import { createUserWithEmailAndPassword } from "firebase/auth"
import { useState } from 'react'
import { auth } from '../firebase'
import { signOut } from 'firebase/auth'

const RegisterScreen = () => {
    const [email, setEmail] = useState('')
    const [password, setPassword] = useState('')
    const [name, setName] = useState('')
    const [showError, setShowError] = useState(false);
    const navigation = useNavigation()
    const handleSignUp = async () => {
        try {
        if (email && password) {
           const { user } = await createUserWithEmailAndPassword(auth, email, password, name)
           console.log('Registered as :' ,;
            await signOut(auth)
            console.log("Signed out successfully")
          }catch (error) {
        } catch (error) {
    return (
    <KeyboardAvoidingView  //To prevent keyboard from blocking the writing area
        behavior = "padding"
        <View style = {styles.inputContainer}> 
                placeholder = "Email"
                onChangeText ={text => setEmail(text)}
                style = {styles.input} 
                placeholder = "Password (Min: 6 chars)"
                onChangeText ={text => setPassword(text)}
                style = {styles.input} 
                secureTextEntry //Hide password
                placeholder = "Name"
                onChangeText ={text => setName(text)}
                style = {styles.input} 
        {showError && <View style={styles.error}>
          <Text>Username or password not valid</Text>
        <View style = {styles.buttonContainer}>
                onPress = {handleSignUp}
                style = {styles.button}
                <Text style={styles.buttonText}>Register</Text>

As stated in the code, I did the following line console.log('Registered as :' ,; and the console returned me as Registered as undefined. How do I correct my code to extract what the user has type for the name and also to save the name for the account in firebase?

If anyone can help with this, thank you very much !

Hi @calvinthecat,

This is not an Expo related issue.

The createUserWithEmailAndPassword method only accepts two parameters: email and password. There is no name parameter.

For more info, Please see Firebase docs: auth package  |  Firebase JavaScript API reference and the example on how to use it here: Authenticate with Firebase using Password-Based Accounts using Javascript

Also, please see Firebase’ Manage User docs for further setting displayName property when creating a new user account: Manage Users in Firebase

Oh okay. I am sorry about that, @amanhimself . I thought I can ask issue such as this when using expo to come out with a application. May I ask where I should ask such issue such issue such as this? Also, thank you for your answer !

No worries! Of course you can ask. I just mentioned that to clarify for other community members who might come across this post.

I’d suggest checking out Firebase docs for clarification on how to achieve what you are trying to do. You can also join Expo’s Discord and ask other community members in #react-native or #random channels.

Oh okay. Thanks @amanhimself !. But if i were to post here, is this the right place to post?

If you want to post questions here that are non-related to Expo and are related to third party tools and other libraries, you can use the “How to/Third party tooling” topic.

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