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oguzhanguvenkaya
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shopify-functions

Customize Shopify backend logic with GraphQL inputs and outputs.

Updated May 1, 2026
Search Tags:#backend#customization#functions#checkout#shopify#cart#discounts
One-click install
npx skills add https://github.com/oguzhanguvenkaya/oguzhan_claude_code_configurations --skill shopify-functions-oguzhanguvenkaya
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: shopify-functions
Source: https://github.com/oguzhanguvenkaya/oguzhan_claude_code_configurations/tree/main/skills/shopify-functions
Command: npx skills add https://github.com/oguzhanguvenkaya/oguzhan_claude_code_configurations --skill shopify-functions-oguzhanguvenkaya

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Shopify Functions let developers customize backend logic powering key Shopify features, enabling tailored checkout and fulfillment experiences rather than one-size-fits-all defaults.

Core Features & Use Cases

  • Discount, Cart and Checkout Validation, and Cart Transform to enforce custom rules and data shaping.
  • Delivery Customization, Local Pickup and Pickup Point options, and Fulfillment Constraints to support complex logistics.
  • Order Routing Location Rule, Payment Customization, and other APIs to align checkout with business requirements.

Quick Start

Create a new Shopify Function extension and implement a target (for example run) for the API you need (e.g., Discount or Delivery) to start customizing behavior.

Frequently Asked Questions about shopify-functions

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I customize Shopify checkout validations and cart transformations?▼

Shopify Functions let you customize backend logic for checkout validations and cart transformations by implementing targeted APIs driven by GraphQL inputs and outputs. You can enforce custom rules and shape cart data flexibly.

What is the best way to create custom discounts for a Shopify storefront?▼

The best way to create custom discounts is using Shopify Functions to tailor backend logic with pure functions. You create a function extension targeting the Discount API to apply specific, custom pricing rules.

Can I use Shopify Functions to customize delivery options and fulfillment constraints?▼

Yes, Shopify Functions support delivery customization, local pickup options, and fulfillment constraints. You can implement targeted APIs to align complex logistics and checkout flows with specific business requirements.

Does Shopify Functions require GraphQL for custom backend logic?▼

Yes, Shopify Functions require GraphQL inputs and outputs to drive function behavior. Your custom logic processes these GraphQL payloads to modify checkout, discount, or fulfillment operations.

How do I add payment customization to my Shopify checkout flow?▼

You can add payment customization by creating a Shopify Function extension and implementing a target for the Payment Customization API. This aligns your checkout process with specific business requirements.

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