hyper-exchange 0.1.0

Hyperliquid L1 exchange client — EIP-712 signing, REST API, WebSocket
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# hyper-exchange

Hyperliquid L1 exchange client for Rust -- EIP-712 action signing, REST API, and type-safe order construction.

## Install

```toml
[dependencies]
hyper-exchange = "0.1.0"
```

## Features

- EIP-712 L1 action signing (orders, cancels, agent approval)
- REST client for Hyperliquid info and exchange endpoints
- Testnet and mainnet support
- Pluggable `Signer` trait for custom key management

## Quick Start

```rust
use hyper_exchange::ExchangeClient;

let client = ExchangeClient::new(true); // mainnet
let meta = client.post_info(serde_json::json!({"type": "meta"})).await?;
```

## Key Types

- `ExchangeClient` -- REST client for info and exchange endpoints
- `Signer` -- trait for signing action hashes
- `sign_l1_action` -- sign an L1 action with EIP-712
- `OrderWire` / `OrderTypeWire` -- typed order construction

## License

MIT