Crypto Watcher

Note: This project was created specifically to study and practice Rust programming concepts, particularly async runtime, TUI development, and clean code practices.

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Features

• Monitors real-time prices for any symbol on Binance
• Renders elegant sparkline charts using ratatui
• Maintains persistent history up to 600 data points
• Displays dynamically scaling Y-axes and human-readable X-axes with timestamps

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Requirements

• Rust 1.70+
• Cargo
• Working internet connection (to reach Binance API)

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Installation

1. Clone the repository:

git clone https://github.com/kodezy/crypto-watcher.git
cd crypto-watcher

2. Build the project:

cargo build --release

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Usage

Start the application directly using Cargo:

cargo run <symbol1> <symbol2> ...

Or run the compiled binary:

./target/release/crypto-watcher

• Exit: Press q to safely exit the application.

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Architecture

• main.rs: Core application logic. Contains the data structures (Asset), the Tokio-based async fetching loop, and the rendering logic using Ratatui.
• Dependencies:
  • ratatui & crossterm: Terminal UI rendering and event mapping.
  • tokio: Async runtime for parallel REST requests.
  • reqwest: HTTP client to fetch data.
  • serde & serde_json: JSON parsing.
  • chrono: Real-time timestamp formatting.