recaptcha v3 react

ReCAPTCHA v3 is a Google service that helps website owners prevent spam and abuse from bots while allowing human users to access their content without any friction. Unlike previous versions of ReCAPTCHA, v3 does not require any user interaction like solving puzzles or clicking checkboxes. Instead, it runs in the background and assigns a score to each user session, indicating the likelihood of the user being a bot.

If you're looking to implement ReCAPTCHA v3 in a React application, here's a step-by-step guide to get you started:

1. Sign up for reCAPTCHA v3:

- Go to the Google reCAPTCHA website: https://www.google.com/recaptcha

- Click on the "Admin Console" button at the top right corner.

- Sign in with your Google account or create one if you don't have it.

- Register your website by providing a label (for your reference) and the domain name where you'll be using reCAPTCHA.

2. Obtain the reCAPTCHA Site Key:

- After registering your website, you'll receive a site key. This key is essential for integrating reCAPTCHA into your React application. Keep it safe and avoid sharing it publicly.

3. Set up your React project:

- Create a new React application using Create React App or use your existing project.

4. Install the required packages:

- In your project directory, open a terminal and run the following command to install the necessary dependencies:

```bash

npm install react-google-recaptcha

```

5. Implement the reCAPTCHA component:

- Create a new component, e.g., `ReCaptchaWidget.js`, where you'll integrate the reCAPTCHA v3.

```jsx

import React, { useEffect } from 'react';

import ReCAPTCHA from 'react-google-recaptcha';

const ReCaptchaWidget = ({ siteKey, onToken }) => {

useEffect(() => {

// Load the reCAPTCHA script asynchronously once the component mounts

const script = document.createElement('script');

script.src = 'https://www.google.com/recaptcha/api.js?render=' + siteKey;

document.body.appendChild(script);

return () => {

// Cleanup: Remove the script when the component unmounts

document.body.removeChild(script);

};

}, [siteKey]);

useEffect(() => {

// Function to get the reCAPTCHA token and call the onToken callback

const getToken = async () => {

try {

const token = await window.grecaptcha.execute(siteKey, { action: 'submit' });

onToken(token);

} catch (error) {

// Handle any errors that might occur during token generation

console.error('Error generating reCAPTCHA token:', error);

}

};

// Call the getToken function once the component mounts

getToken();

}, [siteKey, onToken]);

return ;

};

export default ReCaptchaWidget;

```

6. Integrate the ReCaptchaWidget in your application:

- In the component where you want to use reCAPTCHA, import the `ReCaptchaWidget` component and use it as follows:

```jsx

import React from 'react';

import ReCaptchaWidget from './ReCaptchaWidget';

const YourComponent = () => {

const handleRecaptchaToken = (token) => {

// Here, you can send the generated token to your server for verification.

// The token can be used to prove the user's authenticity on your backend.

console.log('Received reCAPTCHA token:', token);

};

return (

);

};

export default YourComponent;

```

Remember to replace `'YOUR_RECAPTCHA_SITE_KEY'` with the actual site key you obtained from the Google reCAPTCHA admin console.

With these steps, you should now have ReCAPTCHA v3 integrated into your React application. The reCAPTCHA will automatically generate a token in the background, which you can use on your server to verify the user's authenticity and prevent spam and abuse.