amp-recaptcha-input

Introduction

The amp-recaptcha-input component appends a reCAPTCHA v3 token to AMP form submissions. amp-recaptcha-input does this by creating an iframe to load the reCAPTCHA v3 api script using the provided site key, and calling grecaptcha.execute with the provided site key and action.

Setup

Import the amp-recaptcha-input component, on an AMP Page using AMP Form

<script async custom-element="amp-recaptcha-input" src="https://cdn.ampproject.org/v0/amp-recaptcha-input-0.1.js"></script>

Basic usage

POST Form request, that responds with the resolved recaptcha items. See the reference documentation for a walkthrough on the corresponding grecaptcha calls.

<form id="amp-recaptcha-input-form" method="POST" action-xhr="https://amp.dev/documentation/examples/components/amp-recaptcha-input/api/recaptcha" target="_top">
  <fieldset>
    <label>
      <span>Search for</span>
      <input type="search" name="term" required>
    </label>
    <input name="submit-button" type="submit" value="Search">
    <amp-recaptcha-input layout="nodisplay" name="recaptcha_token" data-sitekey="6LfcQ7IUAAAAAIv1KcgqyExGK0v8dLJtvV_Q6xD-" data-action="recaptcha_example">
    </amp-recaptcha-input>
  </fieldset>

  <div class="loading-message">Loading...</div>

  <div submit-success>
    <template type="amp-mustache">
      <h1>You searched for: {{term}}</h1>
      <div><b>Score:</b> {{score}}</div>
      <div><b>Recaptcha token:</b> {{recaptcha_token}}</div>
      <div><b>Action:</b> {{action}}</div>
    </template>
  </div>

  <div submit-error>
    <template type="amp-mustache">
      <h1>Error! Please check the JS Console in your dev tools.</h1>
      <p>{{message}}</p>
    </template>
  </div>
</form>

Need further explanation?

If the explanations on this page don't cover all of your questions feel free to reach out to other AMP users to discuss your exact use case.

Go to Stack Overflow

An unexplained feature?

The AMP project strongly encourages your participation and contributions! We hope you'll become an ongoing participant in our open source community but we also welcome one-off contributions for the issues you're particularly passionate about.

Edit sample on GitHub