<script type="text/javascript" src="https://sandbox.sipay.es/fpay/v1/static/bundle/fastpay.js"></script>

<button

        type="button"

        data-key="key-value"

        data-amount="2872"

        data-currency="EUR"

        data-template="v1"

        data-redirect="https://httpbin.org/get"

        data-logo-style="rectangle"

        data-logo-url="https://picsum.photos/200/100"

        data-business-title="My Company Name"

        data-description="Some product description"

        class="fastpay-btn">

</button>