shopify-functions-app

live

Built custom Shopify Functions powering server-side commerce rules across multiple storefronts, including discount logic, cart and checkout validation, and delivery customization.

TypeScriptShopify FunctionsRemix

cat architecture.md

Shopify Storefront

Cart activity
Checkout
Customer actions

Shopify Runtime

Function execution
Input data
Commerce events

Custom Functions

Discount logic
Cart validation
Delivery rules

Shopify Checkout

Validated cart
Adjusted discounts
Delivery options

# Why Shopify Functions?: Commerce rules run inside Shopify's backend runtime, allowing discounts, validation, and delivery logic to be enforced server-side rather than relying on storefront JavaScript.
# Storefront independence: Keeping business rules in Shopify Functions allows the same backend logic to work consistently across storefront experiences without coupling critical commerce behavior to the frontend.