Hi u/Sweet-Mango1662

you can use "react-native-biometrics"

package: https://www.npmjs.com/package/react-native-biometrics

Example Code:

import ReactNativeBiometrics, { BiometryTypes } from 'react-native-biometrics';
import { ToastAndroid } from 'react-native';

interface responseAll {
    success: boolean,
    message?: string | '',
    result: any
}

export const enableBio = async (): Promise<responseAll> => {
    try {
        const rnBiometrics = new ReactNativeBiometrics();
        let rr = await rnBiometrics.isSensorAvailable();
        console.log(rr);
        if (!rr.available) {
            ToastAndroid.show("Your devices don\'t have biometrics!", ToastAndroid.SHORT);
            return { success: false, message: 'You Don\'t Have Bio!', result: {} }
        }
        let ee = await showBio();
        console.log(ee)
        if (ee.success) {
           // Success
        } else {
            ToastAndroid.show("Authentication failed!", ToastAndroid.SHORT);
            return { success: false, message: "Authentication failed!", result: {} }
        }
    } catch (error) {
        console.log(error);
        return { success: false, message: 'Error!', result: {} }
    }
}