React hook for Google reCAPTCHA v2.

reCAPTCHA protects you against spam and other types of automated abuse. Here, we explain how to add reCAPTCHA to your React APP.

React hook for Google reCAPTCHA v2.

To get sitekey you need Register a new site

Example Checkbox reCAPTCHA

import React from 'react';
import useCaptcha from 'usecaptcha';

const sitekey = 'YOUR_SITE_KEY'; 

const App = () => {
    const [captchaRef, execute, response] = useCaptcha(sitekey);
  
    return (
      <main>
        <h1>reCAPTCHA</h1>
        <p>Response: {response}</p>
        <button onClick={execute}>EXECUTE CAPTCHA</button>
    
        <aside ref={captchaRef}/>
      </main>
    )
}

Example Invisible reCAPTCHA

import React from 'react';
import useCaptcha from 'usecaptcha';

const sitekey = 'YOUR_SITE_KEY'; 

const App = () => {
    const options = {
      size: 'invisible',
    }; 
    const [captchaRef, execute, response] = useCaptcha(sitekey, options);
    
    return (
      <main>
        <h1>reCAPTCHA</h1>
        <p>Response: {response}</p>
        <button onClick={execute}>EXECUTE CAPTCHA</button>
    
        <aside ref={captchaRef}/>
      </main>
    )
}

Example with options:

import React from 'react';
import useCaptcha from 'usecaptcha';

const sitekey = 'YOUR_SITE_KEY'; 

const App = () => {
    const options = {
      size: 'size',
      theme: 'dark',
      callback: (response) => console.log(response),
    }; 
    const [captchaRef, execute, response] = useCaptcha(sitekey, options);
    
    return (
      <main>
        <h1>reCAPTCHA</h1>
        <p>Response: {response}</p>
        <button onClick={execute}>EXECUTE CAPTCHA</button>
    
        <aside ref={captchaRef}/>
      </main>
    )
}

DEMO

options

| Name | Value | Description | | --- | --- | --- | | badge | [bottomright,bottomleft,inline] | Optional for invisible reCAPTCHA. Reposition the reCAPTCHA badge. 'inline' lets you position it with CSS. | | theme | [dark,light] | Optional. The color theme of the widget. | | size | [invisible,compact ,normal] | Optional. Used to create an invisible widget bound to a div and programmatically executed, or the size of the reCAPTCHA checkbox. | | language | [Language Codes] | Optional. Forces the widget to render in a specific language. Auto-detects the user's language if unspecified. See language codes | | callback | [function] | Optional. The callback function, executed when the user submits a successful response. The response token is passed to your callback. | | expiredCallback | [function] | Optional. The callback function, executed when the reCAPTCHA response expires and the user needs to re-verify. | | errorCallback | [function] | Optional. The callback function, executed when reCAPTCHA encounters an error (usually network connectivity) and cannot continue until connectivity is restored. If you specify a function here, you are responsible for informing the user that they should retry. | | globally | [boolean] | Optional. Can I use reCAPTCHA globally?. If set to true will be use www.recaptcha.net host. Default to www.google.com. |

Server Side Validation

Verifying response