Integration with Checkout Champ

Note that the following documentation is based on instructions provided by CheckoutChamp. In case of any issues, please contact your CheckoutChamp account manager.

Go to Theme => … => Edit code

Create a new file in the templates folder with the name cart.meta-data.json.liquid

Paste the following content:

{%- layout none -%}
{
  "meta_product_id_array": [
    {%- for item in cart.items -%}
      {%- if item.variant.metafields.productId.productId -%}
        {
          "id": "{{ item.variant.metafields.productId.productId }}",
          "quantity": {{ item.quantity }}
        }
        {%- unless forloop.last -%},{%- endunless -%}
      {%- endif -%}
    {%- endfor -%}
  ]
}

Create a new file in the snippets folder with the name cc-custom-cart.js.liquid

Paste the following content into that file:

{%- comment %}
  @param cart (cart, mandatory)
  @param checkout_url (string, mandatory) the checkout url
  @param checkout_button_selector (string) the query selector for the checkout button
{% endcomment -%}

{% unless checkout_url %}
  {% assign checkout_url = 'you.must.define.a.checkout.url' %}
{% endunless %}

{% unless checkout_button_selector %}
  {% assign checkout_button_selector = '[type="submit"][name="checkout"]' %}
{% endunless %}
<script>
  document.addEventListener("DOMContentLoaded", function () {

    var debug = true ? console.log.bind(console, '[DEBUG][RedirectCart]') : function () {};

    debug('Script loaded');

    window.RedirectCart = function (options) {

      var self = {};

      function init() {
        self.options = Object.assign({
          checkoutButtonSelector: '{{ checkout_button_selector }}',
          checkoutUrl: '{{ checkout_url }}'
        }, options);

        self.$checkoutButton = $(self.options.checkoutButtonSelector);

        debug('Initialized with options', self.options);

        inject();
      }

      function inject() {
        debug('Inject');
        $(document).on('click', self.options.checkoutButtonSelector, checkout);
      }

      function checkout(event) {
        event.preventDefault();
        event.stopPropagation();
        var cartContents = fetch('/cart?view=meta-data.json')
          .then(response => response.json())
          .then(data => {
            var checkoutUrl = getCheckoutURL(data);
            debug('Checkout ->', checkoutUrl);
            window.location.href = checkoutUrl;
          });
      }

      function getCartCookie(name) {
        var match = document.cookie.match(new RegExp('(^| )' + name + '=([^;]+)'));
        if (match) {
          return match[2];
        }
      }

      function getCheckoutURL(data) {
        cookie = getCartCookie('cart');
        affId = getCartCookie('?affId');
        //coupon = '&couponCode={{cart.cart_level_discount_applications[0].title}}';
        var urlLineItems = Object.keys(data.meta_product_id_array).reduce(function (output, productId) {
          return output.concat([ data.meta_product_id_array[productId].id + ':' + data.meta_product_id_array[productId].quantity ]);
        }, []).join(';');

        if (typeof affId !== 'undefined')
          return self.options.checkoutUrl + '?products=' + urlLineItems + '&cartId='+cookie + '&affId='+affId+coupon;
        else
          return self.options.checkoutUrl + '?products=' + urlLineItems + '&cartId='+cookie;
      }

      init();

      return self;

    };

    var instance = new RedirectCart();

  });
</script>

Open file theme.liquid

Add the following code before </body>

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
    {%
      include 'cc-custom-cart' with
      checkout_url: 'YOUR-CHECKOUT-URL'
    %}

Ensure to replace YOUR-CHECKOUT-URL with the checkout url that you have set in your checkout champ settings.