E-Commerce Serang (Android App)

A mobile e-commerce platform built with Kotlin (Android) and a backend in Express, tailored for small businesses (UMKM). Supports browsing, ordering, chatting, and tracking — with shipping cost calculation (RajaOngkir) and push notifications via Firebase Cloud Messaging.

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Overview

This Android app includes:

• Account registration, login, and OTP verification
• Browsing products by category and store
• Cart and checkout orders
• Shipping cost estimation via RajaOngkir API
• Checkout order, tracking, and status updates
• Real-time buyer–seller chat
• Store registration and product management
• Store Balance as active status
• Top up store balance
• Write rating and feedback for purchased products
• Push notifications for user activity

The app communicates with a custom backend server via REST API and WebSocket.

Tech Stack

• MVVM architecture
• Retrofit for API communication
• Hilt for dependency injection
• Socket.IO client for real-time chat
• Firebase Cloud Messaging (FCM) for notifications
• Coroutines for async operations
• Glide for image loading
• ViewBinding for UI access
• LiveData and StateFlow for reactive UI
• RajaOngkir API integration for shipping cost

Project Structure

• api/retrofit/
• data/
• di/
• ui/
  • auth/
  • home/
  • cart/
  • order/
    • history/
    • review/
  • chat/
  • profile/
    • store/
      • addProduct/
      • sells/
      • balance/
      • review/
  • product/
  • notif/
• utils/
• google-services.json

How to Run

1. Clone this project and open it in Android Studio
2. Add your google-services.json for Firebase (FCM)
3. Update the API base URL in the Retrofit client
4. Settings BASE_URL in your local.properties
5. Build and run on an emulator or physical device