Listen to shopify cart update quantity

Question

I am writing a Shopify app and I would want to listen to the shopify cart update event. I know that when user clicks on remove or increase the item quantity. Shopify send a

Answer 1

To update item quantity fields in the cart in sectioned theme

Step 1: You access Shopify admin, click Online Store and go to Themes.

Step 2: Find the themes that you want to edit, then press Actions then Edit Code.

Step 3: Look at Sections, you click on cart-template.liquid. In case that you are not using the theme that does not have the address, you can access Template directory and click cart.liquid.

Step 4: Find the phrase written as update[item.id] in input tag.

Step 5: Change the name into the value of name= “updates[]”.

Step 6: Reiterate these aforementioned steps whenever you see an name value of updates[] in input tag.

Step 7: Click Save and you update item quantity fields successfully..