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Project Overview
Portfoliov is a comprehensive mobile application that fetches real-time prices for stocks and cryptocurrencies and compares the percentage increases and decreases of portfolio assets based on their cost prices. Thanks to real-time data streams, users can track their investments and portfolio performance through dynamic charts.
Technologies & Tools
React NativeTypeScriptFirebaseReduxVictory NativeAsyncStorageCoinGecko APIAlpha VantageWebSocketJestDetox
Key Features
Real-time price tracking for stocks and cryptocurrencies
Automatic profit/loss calculation based on cost basis
Dynamic interactive charts with multiple timeframes
Portfolio performance analytics and metrics
Asset allocation visualization (pie charts, tree maps)
Price alerts and notifications for significant movements
Historical performance tracking with date range selection
Multiple portfolio support for diversification tracking
Transaction history and cost basis management
Export functionality for tax reporting
Multi-currency support with real-time exchange rates
Offline mode with local data caching
Dark mode for comfortable viewing in all lighting conditions
Secure authentication with biometric login support
Portfoliov is a sophisticated portfolio management solution designed for modern investors who demand real-time visibility into their diverse investment holdings. Built on cutting-edge mobile technologies and powered by Firebase's real-time database capabilities, Portfoliov delivers instantaneous updates on portfolio performance across stocks, cryptocurrencies, and other digital assets. The application addresses a critical need in today's fast-paced financial markets: the ability to monitor and analyze portfolio performance in real-time from anywhere, on any device. Whether you're a day trader making split-second decisions or a long-term investor tracking your wealth accumulation, Portfoliov provides the insights and analytics you need to make informed decisions. With its intuitive interface, powerful visualization tools, and comprehensive performance metrics, Portfoliov transforms raw market data into actionable intelligence. The app's real-time synchronization ensures that your portfolio data is always up-to-date across all your devices, while its offline capabilities guarantee uninterrupted access to your investment information.
Technical Deep Dive
Real-Time Data Architecture
Portfoliov leverages Firebase Realtime Database for instantaneous data synchronization across devices. The architecture implements WebSocket connections for sub-second latency updates, with automatic reconnection and conflict resolution. Price data is aggregated from multiple sources including CoinGecko, Alpha Vantage, and Binance APIs, with fallback mechanisms ensuring 99.9% uptime.
Mobile Development Stack
Built with React Native for cross-platform compatibility, ensuring a native-like experience on both iOS and Android. The app uses Redux for centralized state management, React Navigation for seamless screen transitions, and Reanimated 2 for smooth 60fps animations. Native modules handle platform-specific features like biometric authentication and secure storage.
Chart Visualization
Implements Victory Native for highly customizable and performant charts. Supports multiple chart types including line charts for price history, candlestick charts for detailed price action, pie charts for asset allocation, and area charts for cumulative returns. Charts are fully interactive with pinch-to-zoom, pan gestures, and detailed tooltips.
Data Management
Client-side data caching with AsyncStorage ensures app functionality even without internet connectivity. Implements efficient data synchronization strategies to minimize bandwidth usage while maintaining real-time updates. Background fetch capabilities update prices even when the app is not active.
Security & Authentication
Firebase Authentication handles user management with support for email/password, Google Sign-In, and Apple Sign-In. All sensitive data is encrypted at rest using AES-256. API keys and secrets are stored securely using platform-specific keystores. Implements SSL pinning to prevent man-in-the-middle attacks.
Screenshots & Visuals
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