React Native firebase.auth.RecaptchaVerifier

To use the firebase.auth.RecaptchaVerifier component in a React Native app, you will need to use the RecaptchaVerifierModal component from the @react-native-firebase/auth package.

Here is an example of how you can use the RecaptchaVerifierModal component to verify a phone number and authenticate using an OTP in a React Native app:

import React, { useState } from 'react';
import { View, TextInput, Button } from 'react-native';
import { RecaptchaVerifierModal } from '@react-native-firebase/auth';

const PhoneAuthExample = () => {
  const [phoneNumber, setPhoneNumber] = useState('');
  const [verificationId, setVerificationId] = useState(null);
  const [verificationCode, setVerificationCode] = useState('');

  const onSendPress = () => {
    const appVerifier = RecaptchaVerifierModal.createRecaptchaVerifierModal();
    firebase
      .auth()
      .signInWithPhoneNumber(phoneNumber, appVerifier)
      .then(confirmationResult => {
        setVerificationId(confirmationResult.verificationId);
      })
      .catch(error => console.error(error));
  };

  const onVerifyPress = () => {
    const credential = firebase.auth.PhoneAuthProvider.credential(
      verificationId,
      verificationCode
    );
    firebase
      .auth()
      .signInWithCredential(credential)
      .then(() => console.log('User signed in with phone number'))
      .catch(error => console.error(error));
  };

  return (
    <View><TextInputplaceholder="Phone number"value={phoneNumber}onChangeText={setPhoneNumber}
      /><Button title="Send verification code" onPress={onSendPress} /><TextInputplaceholder="Verification code"value={verificationCode}onChangeText={setVerificationCode}
      /><Button title="Verify code" onPress={onVerifyPress} /></View>
  );
};

export default PhoneAuthExample;

In this example, the RecaptchaVerifierModal component is used to create an instance of the RecaptchaVerifier class, which is then passed to the signInWithPhoneNumber method of the firebase.auth module. The user's phone number and the appVerifier instance are passed to the signInWithPhoneNumber method, and the resulting confirmationResult object is used to verify the user's phone number.

Once the user's phone number has been verified, they can enter the verification code that was sent to their phone to authenticate and sign in to the app.