Symbiotic City - Android App

Android application and dedicated backend for Symbiotic City sustainability platform.

📱 Project Structure

SymbioticApp/
├── android-backend/     # Node.js/Express backend (port 3002)
├── SymbioticCityApp/    # Android app (Kotlin, MVVM)
└── .gitignore

🚀 Quick Start

Backend Setup

1. Navigate to backend directory:

cd android-backend

1. Install dependencies:

npm install

1. Create .env file (already configured):

PORT=3002
DATABASE_URL=postgresql://postgres:viraj7930@db.nzobbewbakkeydvzhggb.supabase.co:5432/postgres
JWT_SECRET=9Aj1Txenum7CuFz2Eum+lajzqRfcuQSOtboczT+XeW9SuYdkRHJOIRQI68XyKGvUHm/ZObaMjsgWrZaJQBPphg==
NODE_ENV=development

1. Start the server:

node server.js

Or double-click START.bat on Windows.

Android App Setup

1. Open SymbioticCityApp in Android Studio

2. Update API endpoint in RetrofitClient.kt if needed:

   • Emulator: http://10.0.2.2:3002/api/
   • Physical device: http://YOUR_IP:3002/api/

3. Build and run the app

🎨 Features

• Authentication: Login/Register with JWT
• Projects: Browse and view sustainability projects
• Events: Discover community events
• Marketplace: Green products and services
• Profile: User management and settings

🔑 Test Credentials

Email: test@symbioticapp.com Password: test123

🛠️ Tech Stack

Android:

• Kotlin
• MVVM Architecture
• Retrofit 2.9.0 + OkHttp
• Material Design 3
• DataStore Preferences
• LiveData & ViewModel

Backend:

• Node.js + Express
• PostgreSQL (Supabase)
• JWT Authentication
• bcryptjs

📦 Build APK

cd SymbioticCityApp
./gradlew assembleDebug

APK location: app/build/outputs/apk/debug/app-debug.apk

🎨 Design

The app follows the website's mobile-responsive design with:

• Background: #E2EAD6 (sage green)
• Cards: #B3C893 with 16dp radius
• Primary: #4EA685 (teal-green)
• Modern Material Design 3 components

📄 License

See LICENSE file.