Building a Birthday Discount App for Shopify POS | Full Tutorial with Preact & GraphQL

Learn how to build a complete discount app for Shopify POS! This step-by-step tutorial covers every aspect of Shopify POS app, using the latest POS UI Extensions API (2026-01).
🎂 What We're Building: A POS extension that automatically detects customers' birthdays and allows staff to apply special 10% discounts directly from the point of sale.

✨ Features:
Smart Grid Tile with real-time birthday eligibility indicators
Interactive modal for applying birthday discounts
Customer details block showing birth date information
Automatic cart updates and toast notifications

💻 Tech Stack:
Shopify POS UI Extensions API 2026-01
Preact for reactive components
GraphQL Admin API for customer data
Shopify CLI for development

📚 What You'll Learn:
✅ Building POS UI extensions with multiple targets (tiles, modals, blocks)
✅ Making GraphQL Admin API calls directly from POS extensions
✅ Using Preact hooks for state management
✅ Handling real-time cart updates with subscriptions
✅ Working with customer metafields for storing birth dates
✅ Deploying and installing POS apps correctly
✅ Managing protected customer data permissions

🔗 Resources:
📂 GitHub Repository: https://github.com/webspeaks/shopify-pos-birthday-discount-app
📖 Shopify POS UI Extensions Docs: https://shopify.dev/docs/api/pos-ui-extensions
🔐 Protected Customer Data Guide: https://shopify.dev/docs/apps/launch/protected-customer-data
🛠️ Shopify CLI: https://shopify.dev/docs/apps/tools/cli

#shopify #ShopifyPOS #ShopifyDevelopment #ShopifyApps #JavaScript #Preact #GraphQL #WebDevelopment #Programming #Tutorial #POSExtensions #shopifytutorial

Видео Building a Birthday Discount App for Shopify POS | Full Tutorial with Preact & GraphQL канала Arvind Bhardwaj