KMP E-Commerce Store

A fully featured, cross-platform food supplements store built from the ground up using Kotlin Multiplatform and Jetpack Compose.

🚀 Key Features

• Multi-Platform UI
  Share a single Compose UI layer across Android & iOS with Compose Multiplatform.
• User Authentication
  Secure Google Sign-In via Firebase Auth.
• Product Catalog & Shopping Cart
  Browse multiple categories, customize products (e.g. flavors), add to cart, update quantities.
• Checkout & Payments
  • Pay on Delivery
  • PayPal Integration via PayPal API
• Order Confirmation Emails
  Automated order emails (product details, totals, shipping info) powered by Firebase Cloud Functions.
• Admin Panel
  Secure CRUD interface for store owners to add, update, or remove products.
• Push Notifications
  Notify customers of order updates using Firebase Cloud Messaging.

🔧 Architecture & Tech Stack

• Kotlin Multiplatform (KMP)
  Shared business logic across platforms
• Jetpack Compose Multiplatform
  Declarative UI: From Figma mockups to native app screens
• Clean, Multi-Modular MVVM
  Scalable, testable modules & clear separation of concerns
• Firebase Backend
  • Authentication (Google Sign-In)
  • Cloud Firestore (real-time database + security rules)
  • Storage (product images)
  • Cloud Functions (email automation)
  • Cloud Messaging (push notifications)

🗂️ Project Scope

This repository contains the complete source for the e-commerce app built in the course:

• End-to-end Android & iOS implementation using shared Kotlin UI
• Real-world features: authentication, cart, payments, emails, notifications
• Admin dashboard for live product management
• Comprehensive Firebase integration for backend services