Book Image

Shopify Theme Customization with Liquid

By : Ivan Djordjevic
Book Image

Shopify Theme Customization with Liquid

By: Ivan Djordjevic

Overview of this book

Shopify is one of the fastest-growing eCommerce platforms, which means developers familiar with the Liquid concept are needed now more than ever. This book will help you to build a solid foundation by enabling you to develop your skills from the ground up by gaining essential theoretical knowledge of Liquid and putting that knowledge to use through hands-on projects. Shopify Theme Customization with Liquid begins by helping you get to grips with basic Shopify information, its interface and theme structure, setting up your Partner account, and creating a child theme, which is essential when preparing for any future work on Shopify. You'll then explore Liquid core features that will provide you with a basic understanding of the Liquid programming logic needed to develop any feature. As you advance to the latest and advanced features, you'll learn about JSON settings, allowing you to create any type of static or dynamic section - a must-have for becoming a competent Shopify developer. Finally, the book takes you through the Shopify Ajax API to gain the necessary skills needed to create a variety of dynamic features and content. By the end of this Shopify book, you'll be able to take on challenging projects to showcase your theme customization expertise to your future employer.
Table of Contents (15 chapters)
1
Section 1: Shopify Explained
4
Section 2: Exploring Liquid Core
8
Section 3: Behind the Scenes
Appendix: Frequently Asked Questions

Updating the cart session with a POST request

Previously, we mentioned that we can use a POST request to update the current cart session. Depending on the type of action we are looking to perform, we can pair the POST request with the following cart endpoints:

  • /cart/add.js
  • /cart/update.js
  • /cart/change.js
  • /cart/clear.js

While this might sound trivial, it is an essential aspect of today's e-commerce stores, where we expect to perform an action without refreshing an entire page.

The /cart/add.js endpoint

As its name suggests, the /cart/add.js endpoint allows us to add one or multiple product variants to the cart, without the need to refresh the cart. To perform this action, we need to create an array named items with an object inside containing the following two keys:

  • The id key, whose value should contain the number type value of the variant ID we are adding to the cart.
  • The quantity key, whose value should contain the number type value...