eveloped a dynamic web application providing comprehensive historical stock data visualization through interactive candlestick charts, real-time market insights, and engaging features like user authentication and integrated chat. This project demonstrates strong capabilities in financial data integration and building responsive web applications. Key Responsibilities & Features: Historical Stock Candlestick Charts: Implemented interactive charts to visualize daily market data for various stock symbols (e.g., META, AAPL) with custom date range selection. Real-time Market Data Integration: Fetched and displayed up-to-date daily market data directly from the Polygon.io REST API. Key Financial Metrics Display: Presented crucial stock performance indicators including latest close, daily change, percentage change, high, and trading volume. User Authentication: Developed secure login and signup functionalities to provide personalized user experiences. Integrated Chat Feature: Incorporated a real-time chat module, allowing users to communicate directly within the application. Responsive UI & Intuitive Navigation: Designed a seamless and adaptable user interface for optimal viewing and interaction across various devices. Technologies Used: Frontend: React.js, Tailwind CSS, Chart.js (or similar charting library) Backend: Node.js, Express.js Database: MongoDB APIs: Polygon.io REST API Authentication: JWT (JSON Web Tokens) Real-time Communication: Socket.IO Learnings & Outcome: Successfully integrated and efficiently consumed external financial data APIs, overcoming challenges in handling large datasets and complex candlestick chart visualizations. Gained significant experience in developing and scaling real-time communication features, and ensuring secure user authentication in a dynamic web environment. This project showcases proficiency in full-stack development, API integration, and creating user-friendly financial analysis tools.