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Building a Custom Cryptocurrency Candlestick Chart from Scratch with React
- In this tutorial, a custom real-time candlestick chart for tracking cryptocurrency prices is built from scratch using React.
- A CandlestickDemo component is created to fetch the last 24 weeks of BTC price data and render it as a candlestick chart.
- The useAssetPriceCandlesQuery hook serves as a React Query wrapper for fetching price data, handling caching, loading states, and errors.
- A data structure for price candles is defined, allowing efficient iteration over price fields for rendering chart elements.
- Functionality for fetching cryptocurrency price data from the Binance API is implemented, handling request management and data transformation.
- Chart components are created, including X and Y axes, candlestick representations of price movements, and an interactive hover tracker for detailed information.
- A system for generating Y-axis labels is developed, intelligently determining label spacing based on data range and familiar increments.
- Data normalization functions are introduced to render chart components at a consistent scale, facilitating responsive rendering.
- A centralized chart configuration object is defined to maintain consistent sizing and spacing throughout the chart.
- Various utilities and components like ChartSlice, ChartYAxis, HoverTracker, Candlestick, CandlestickInfo, and ChartXAxis are implemented to complete the interactive chart.
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