Ecommerce Shopify WordPress Discussion

I need to update the variant weight and id to get the right shipping estimate on a Shopify product page

I have created a shipping estimator for the product page of Shopify, the estimator works for the product/variant ID that the page originally loads with, but not when you select a different variant after the page loads, the same is the case of the variants weight. I want the shipping estimator to get the shipping cost for the individual variants as they are selected. This is basically the code I am using in a custom field on a Shopify 2.0 template, I just cant seem to get it to grab the currently selected variant. <div> <div id='widgetBespokeProductShippingEstimator' class="quick-actions clearfix"> {% comment %} Post code and shipping starts here {% endcomment %} <label for="txtBespokePostcode" style="font-size:1.3rem;">Estimate Shipping</label> <div class="estimate-shipping" style="max-width:44rem;display:flex;"> <input type="text" id="txtBespokePostcode" class="txtBespokePostcode" maxlength="4" placeholder="Enter postcode" style="border-radius:20px 0px 0px 20px;border:solid 2px;text-align:center;min-width:9.5rem;" /> <button type="button" id="btnBespokeSubmit" class="button button--full-width btnBespokeSubmit" style="border-radius:0px 20px 20px 0px;--border-offset:0;--border-opacity:0;">Get Estimate</button> </div> {% comment %} post code and shipping ends here {% endcomment %} {% for tag in product.tags %} {% if tag == 'free' %} <input type="hidden" class="product-tag tag-{{ tag }}" id="product-tag" value="{{ tag }}">{% endif %} {% endfor %} <input type='hidden' id='txtBespokeProductID' value='{{}}' /> <input type='hidden' id='txtBespokeVariantWeight' value='{{product.selected_or_first_available_variant.weight}}' /> <span id="lblBespokeRate" style="display:block;font-size:1.3rem;max-width:44rem;margin-top:5px;border-radius:20px;box-shadow:0px 0px 10px 0px rgba(34,34,34,0.2);"></span> </div> </div> <!-- BESPOKE SHIPPING - product page shipping estimator --> <script src=""></script> <script type="text/javascript"> $(document).ready(function() { $('.btnBespokeSubmit').on('click',function() { var postcode = $(this).siblings('.txtBespokePostcode').val(); var state = $(this).siblings('.txtBespokeState').val(); var id = $('#txtBespokeProductID').val(); var wt = $('#txtBespokeVariantWeight').val(); var qty = 1; var product_tag = $('#widgetBespokeProductShippingEstimator').first().find('#product-tag').val(); $('#quantity').each(function() { qty = $(this).val(); }); console.log({{}}); console.log({{product.selected_or_first_available_variant.weight}}); console.log(qty); var requestObj = {"origin":{"country":null,"postal_code":null,"province":null,"city":"","name":null,"address1":"","address2":"","address3":null,"phone":"","fax":null,"address_type":null,"company_name":""}, "destination":{"country":"AU","postal_code":postcode,"province":state,"city":"","name":"","address1":"","address2":"","address3":null,"phone":"","fax":null,"address_type":null,"company_name":""},"items":[ {"name":"","sku":"","quantity":qty,"grams":wt,"price":0,"vendor":"","requires_shipping":true,"taxable":true,"fulfillment_service":"manual","properties":null,"product_id":0,"variant_id":id} ],"currency":"AUD"};
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