This project is a Rust-based backend service that aggregates order book data for the BTC/USDT trading pair from multiple exchanges. It currently integrates with Kraken and Huobi using REST APIs and Binance via WebSocket.

• Rust (1.85.1)
• Cargo (1.85.1)
• Actix Web (4.10.2)
• Tokio (1.44.1) / tokio-tungstenite (0.26.2)
• Reqwest (0.12.15)
• Serde (1.0.219)
• async-trait (0.1.88)
• Config (0.15.11)

Loads configuration from config.toml file to add new exchange, change endpoints, trading paris and others.
You may override those settings via prefixed 'APP' env variables which allows you to test an exchange without modifying any file first

- export APP_KRAKEN_TRADING_PAIR="XBTUSD" - export APP_KRAKEN_ENDPOINT="https://api.kraken.com/0/public/Depth"

Currently exposed REST endpoints using Actix Web to retrieve:

• Kraken order book data (/kraken/mid_price)
• Huobi order book data (/huobi/mid_price)

cargo run -- rest

curl -X GET http://127.0.0.1:8080/kraken/mid_price curl -X GET http://127.0.0.1:8080/huobi/mid_price

Binance WebSocket integration can be activated via command-line arguments.

cargo run -- ws