[tiagosiebler]

Introducing our Professional Node.js, JavaScript & TypeScript SDK for the HyperLiquid REST APIs, WebSocket APIs & WebSocket Events:

• Complete integration with all HyperLiquid REST APIs & WebSockets, including the WebSocket API.
• Actively maintained with a modern, promise-driven interface.
• TypeScript support with thorough type declarations for API requests and responses, including the WebSocket API.
• JavaScript support. TypeScript is not required, but is definitely recommended.
• Thorough automated tests covering requests, signing, WebSockets, types, and package consumers.
• Proxy support via Axios integration.
• Robust WebSocket consumer integration with configurable heartbeats & automatic reconnect then resubscribe workflows.
  • Event-driven messaging.
  • Smart WebSocket persistence.
    • Automatically detect silent WebSocket disconnections through timed heartbeats.
    • Restore cached subscriptions after reconnecting.
    • Emit a reconnected event when a dropped connection is restored.
• WebSocket API integration, with two promise-driven approaches:
  1. Import WebsocketAPIClient and use it like the REST API client. Call typed methods and await their responses.
     • See examples/Websocket/WS-API/ws-api-client.ts.
  2. Use sendWSAPIRequest(...) directly when you need raw WebSocket POST access.
     • The method connects requests to responses and returns a promise.
• One RestClient for public market data, account information, trading, transfers, staking, vaults, subaccounts, deployer actions, multisig, validators, and borrow/lend.
• MessagePack L1 signing and user-signed EIP-712 actions.
• Private keys and portable signTypedData signers.
• CEX-style helpers for market orders, limit orders, market closes, balances, and account summaries.
• Perpetual, spot, HIP-3, and outcome asset resolution using official identifiers and metadata-derived aliases.
• Dual ESM and CommonJS output.
• Browser-safe public REST API calls and public WebSocket subscriptions.
• Active community support & collaboration in telegram: Node.js Algo Traders.