Crypto-XChange
Crypto-Xchange application allows users to view the cryptocurrency market and provides historical price data with a comprehensive summary of each digital coin. Users can create an account where they can favorite coins and simulate transactions to track potential gains or losses. The app sources its information from the CoinGecko API.
Features and Functionality
Authentication
The app uses Firebase Authentication to securely handle user sign-ups and logins with email and password ensuring seamless access to personalized dashboards.
Data Visualization
Data visualizations are created using Lightweight Charts, providing interactive and detailed charts for cryptocurrency trends, historical data, and market analysis, enhancing user insights.
Responsive Design
Chakra UI facilitates a responsive design, ensuring the app looks great and functions smoothly on desktops, tablets, and smartphones through pre-designed, accessible components.
Performance Optimization
Next.js's server-side rendering (SSR) and static site generation (SSG) optimize performance, providing faster load times, improved SEO, and efficient resource loading through code splitting and lazy loading.
Key Components
Coin Profile
Each coin has its own dedicated page where users can explore detailed information. Most of the data is aggregated from CoinGecko, providing up-to-date insights. Users can view coin prices, statistics, external links, and the latest news related to the coin. Additionally, users have the option to add the coin to their watchlist or simulate buy/sell transactions, allowing for a more interactive experience with the cryptocurrency.
Theming App
The app features both light and dark themes implemented using Chakra UI. The theming extends across all elements, including font colors, containers, backgrounds, buttons, and popovers, ensuring a consistent look and feel. By setting the Color Mode Script in the body and wrapping the app in the ChakraProvider, the theme is applied instantly ensuring no delays or glitches on initial page load.
Charts
TradingView library was used to integrate various types of charts to display coin data. Line Charts effectively display trends over a seven-day period, while more advanced charts provide detailed data, including interactive tooltips that show precise price points and percentage changes in coin value. Users can also view charts across different timeframes to view historical performance and trends of each coin.
Architecture
Frontend Architecture
Data Visualization: Chart.js & TradingView for Crypto Analytics
Chart.js is used to render global market insights like pie charts and trending coins, providing an intuitive snapshot of market dominance. TradingView lightweight charts power individual coin charts and trendlines, offering real-time technical analysis tools.
Next.js for SSR & SSG
The app is built with Next.js , enabling server-side rendering (SSR) for faster page loads and static site generation (SSG) for pre-rendered content, improving performance and SEO. Dynamic imports are used to optimize bundle size, ensuring essential components load first.
Chakra UI for Theming & UI Design
The app utilizes Chakra UI for a responsive and accessible design system, ensuring a consistent UI across all components. The centralized theme.ts file manages light and dark mode toggling, providing a seamless user experience.
React Context API for Global State Management
React Context API (AuthContext.tsx) manages global authentication and user session state, reducing the need for prop drilling. It stores user authentication status, favorite coins, and portfolio data, ensuring seamless interaction across pages.
Backend Architecture
CoinGecko API for Market Data
The app fetches real-time cryptocurrency data from CoinGecko’s API, powering market trends, trading volume, and coin-specific analytics. Rate limits are mitigated using AWS S3 caching and static JSON storage for non-dynamic data.
Firebase Authentication & Firestore for User Data
Firebase Authentication securely manages user sign-ups, logins, and sessions using OAuth and email/password authentication. Firebase Firestore stores user watchlists, favorite coins, and simulated trades, syncing data across sessions in real-time.
AWS S3 for Data Caching & Storage
AWS S3 caches historical market data and global metrics, reducing API calls and ensuring high availability. This enhances app performance by storing less frequently updated data in cloud storage rather than making repeated API requests.