invoiceninja/resources/js/clients/payment_methods/authorize-stripe-card.js

/**
 * Invoice Ninja (https://invoiceninja.com)
 *
 * @link https://github.com/invoiceninja/invoiceninja source repository
 *
 * @copyright Copyright (c) 2020. Invoice Ninja LLC (https://invoiceninja.com)
 *
 * @license https://opensource.org/licenses/AAL
 */

class AuthorizeStripeCard {
    constructor(key) {
        this.key = key;
        this.cardHolderName = document.getElementById("cardholder-name");
        this.cardButton = document.getElementById("card-button");
        this.clientSecret = this.cardButton.dataset.secret;
    }

    setupStripe() {
        this.stripe = Stripe(this.key);
        this.elements = this.stripe.elements();

        return this;
    }

    createElement() {
        this.cardElement = this.elements.create("card");

        return this;
    }

    mountCardElement() {
        this.cardElement.mount("#card-element");

        return this;
    }

    handleStripe(stripe, cardHolderName) {
        stripe
            .handleCardSetup(this.clientSecret, this.cardElement, {
                payment_method_data: {
                    billing_details: { name: cardHolderName.value }
                }
            })
            .then(result => {
                if (result.error) {
                    return this.handleFailure(result);
                }
                return this.handleSuccess(result);
            });
    }

    handleFailure(result) {
        let errors = document.getElementById("errors");

        errors.textContent = "";
        errors.textContent = result.error.message;
        errors.hidden = false;
    }

    handleSuccess(result) {
        document.getElementById("gateway_response").value = JSON.stringify(
            result.setupIntent
        );
        document.getElementById("is_default").value = document.getElementById(
            "proxy_is_default"
        ).checked;

        document.getElementById("server_response").submit();
    }

    handle() {
        this.setupStripe()
            .createElement()
            .mountCardElement();

        this.cardButton.addEventListener("click", () => {
            this.handleStripe(this.stripe, this.cardHolderName);
        });

        return this;
    }
}

const publishableKey = document.querySelector(
    'meta[name="stripe-publishable-key"]'
).content;

/** @handle */
new AuthorizeStripeCard(publishableKey).handle();