# React Google ReCaptcha v3

In this example, you can see a working google reCaptcha v3 (Invisible captcha) with React Hook Form.

{% hint style="warning" %}
Note: File Upload is only available for PRO users. 
{% endhint %}

### Live Demo

{% embed url="<https://codesandbox.io/s/react-next-js-simple-google-recaptcha-v3-q21ov7?file=/pages/index.tsx>" %}
Invisible Google reCaptcha.
{% endembed %}

Here's the code:

```jsx
import React from "react";
import { useForm } from "react-hook-form";
import Script from "next/script";

function App() {
  const { register, handleSubmit, setValue } = useForm();
  const [result, setResult] = React.useState("");
  const [captchatoken, setCaptchaToken] = React.useState("");

  React.useEffect(() => {
    setValue("recaptcha_response", captchatoken);
  });

  const onSubmit = async (data) => {
    console.log(data);

    setResult("Sending....");
    const formData = new FormData();

    formData.append("access_key", "YOUR_ACCESS_KEY_HERE");

    for (const key in data) {
      if (key === "file") {
        formData.append(key, data[key][0]);
      } else {
        formData.append(key, data[key]);
      }
    }

    const res = await fetch("https://api.web3forms.com/submit", {
      method: "POST",
      body: formData
    }).then((res) => res.json());

    if (res.success) {
      console.log("Success", res);
      setResult(res.message);
    } else {
      console.log("Error", res);
      setResult(res.message);
    }
  };

  return (
    <div className="App">
      <h1>React Hook Form File Upload</h1>
      <form onSubmit={handleSubmit(onSubmit)}>
        <input type="text" placeholder="Name" {...register("name")} />
        <br />
        <br />
        <input type="email" placeholder="Email" {...register("email")} />
        <br />
        <br />
        <input type="file" {...register("file")} />
        <br />
        <input
          type="hidden"
          {...register("recaptcha_response")}
          id="recaptchaResponse"
        />
        <br />
        <input type="submit" />
      </form>
      <br />
      <span>{result}</span>

      <Script
        id="recaptcha-load"
        strategy="lazyOnload"
        src={`https://www.google.com/recaptcha/api.js?render=RECAPTCHA_SITE_KEY`}
        onLoad={() => {
          grecaptcha.ready(function () {
            grecaptcha
              .execute("RECAPTCHA_SITE_KEY", {
                action: "contact"
              })
              .then(function (token) {
                //console.log(token);
                setCaptchaToken(token);
              });
          });
        }}
      />
    </div>
  );
}

export default App;

```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.web3forms.com/how-to-guides/js-frameworks/react-js/react-google-recaptcha-v3.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.