Demo:  https://www.madamefancypants.com/collections/designers

If your store has lots of products for a specific collection page on your Shopify store? Instead of getting customers to navigate to multiple pages of products you can now add infinite scroll to your Shopify collections pages so customers can keep scrolling through.

1. From your Shopify admin, to to Online Store > Theme.                                                                                                                          
2. Find the theme you want to edit and then click Action > Edit code.                                                                                              
3. In the Layout section, click theme.liquid to open the file in the online code editor.                                                                                                                                                                                           
4. Find </head> and paste the below code just above it.
   
   {% if template contains 'collection' %}{{ 'https://cdn.shopify.com/s/files/1/0382/4185/files/ajaxinate.js?937' | script_tag }}{% endif %}                                                                                                                                                           
5. Save.                                                                                                                                                                                                
6. In the online code editor of collection page find to the loop {% for product in collection.products %} and add more a DIV tag to wrapper and add more a DIV tag just below it. For example

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   <div id="Huratips-Loop" >       {% for product in collection.products %}         {% include 'product-grid-item' %}       {% endfor %} </div> <div id="Huratips-Pagination">     {% if paginate.next %}     <a href="{{ paginate.next.url }}">Loading More</a>     {% endif %}   </div>

    

7. Add the javascript code to the end of the file.

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   <script>   document.addEventListener("DOMContentLoaded", function() {     var endlessScroll = new Ajaxinate({       container: '#Huratips-Loop',       pagination: '#Huratips-Pagination'     });   }); </script>

    

8. Save                                                                                                                                                                                                                                                         
9. You are done!

New update code 2.0:

Demo url: https://debute-section-theme.myshopify.com/collections/all

This tutorial is for Shopify's Dawn theme only.

Step: 1

We're going to use a script called Scrollify which 'Ajaxinates' Shopify.

First download the script here. or here  Add ajaxinate.min.js to the assets folder of your shopify theme

Step: 2

Then add this script tag in main-collection-product-grid.liquid near the other asset_url tags:

{% 'ajaxinate.min.js' | asset_url | script_tag  %}

Step: 3

Add this script right before the schema starts in main-collection-product-grid.liquid to create a new ajaxinate instance.

<script>
const endlessCollection = new Ajaxinate({
container: '#product-grid',
pagination: '.infinite_next',
});
</script>

Step: 4

Then in snippets find pagination.liquid and edit line 44

Add

class="infinite_next"

To the <li> under “paginate.next”. It should look like this screenshot:

Step: 5

We now need to add another initialization in facets.js to account for when a user is filtering products and the pagination changes. In facets.js add this script to the static renderProductCount() function on line 85.

We don't need script tags this time because we're placing it in a javascript function.

const endlessCollection = new Ajaxinate({
container: '#product-grid',
pagination: '.infinite_next',
});

All Done! - Preview your store and view a collection page.