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. The backend service is currently private and tailored for this project.

Project Structure

├── api/retrofit/ # API service and Retrofit client setup ├── data/ # Data layer (DTOs, responses, repositories) ├── di/ # Dependency injection modules (Hilt) ├── ui/ # User interface components │ ├── auth/ # Authentication screens │ ├── home/ # Home screen components │ ├── cart/ # Shopping cart functionality │ ├── order/ # Order management │ ├── chat/ # Chat features │ ├── profile/ # User profile │ ├── product/ # Product catalog │ └── notif/ # Push notifications handling ├── utils/ # Utility classes and helper functions

app/src/main/res/ # Android resources

├── layout/ # XML layout files ├── drawable/ # Images and drawable resources ├── values/ # Strings, colors, dimensions └── navigation/ # Navigation graph files

google-services.json # Firebase configuration for push notifications

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