Node.js & TypeScript OKX API & WebSocket SDK: Complete Developer Guide

Overview

A robust Node.js connector for OKX APIs and WebSockets featuring:

✅ Full integration with all OKX API endpoints
✅ TypeScript support with comprehensive type declarations
✅ 100+ end-to-end tests validating real API/WebSocket interactions
✅ Advanced WebSocket capabilities:

• Configurable connection heartbeats
• Automatic reconnection & resubscription
• Seamless authentication handling

✅ Browser compatibility via Webpack bundling

👉 Get started with OKX API integration

Key Features Breakdown

1. REST API Integration

• Complete coverage of OKX's REST API endpoints
• Type-safe request/response handling
• Built-in rate limit management

2. WebSocket Implementation

const wsClient = new WebsocketClient({
  accounts: [{
    apiKey: API_KEY,
    apiSecret: API_SECRET,
    apiPass: API_PASS
  }]
});

wsClient.on('update', (data) => {
  console.log('Real-time update:', data);
});

3. Testing Framework

• 100+ integration tests covering:

  • API authentication
  • Order management
  • Market data endpoints
  • WebSocket connectivity

Installation & Setup

Prerequisites

• Node.js ≥ 14.x
• TypeScript ≥ 4.0 (recommended)

Installation

npm install okx-api-new
# or
yarn add okx-api-new

Configuration

Generate API keys from your OKX account dashboard and configure:

import { RestClient } from 'okx-api-new';

const client = new RestClient({
  apiKey: 'YOUR_API_KEY',
  apiSecret: 'YOUR_API_SECRET',
  apiPass: 'YOUR_API_PASSWORD'
});

Core Functionality

REST API Methods

WebSocket Channels

• Public:

  • Tickers
  • Funding rates
  • Order book

• Private:

  • Account updates
  • Position changes
  • Order events

👉 Explore all available methods

Best Practices

Error Handling

try {
  const response = await client.getFundingRateHistory({
    instId: "BTC-USDT-SWAP"
  });
  console.log(response.data);
} catch (error) {
  console.error('API Error:', error.response?.data);
}

Performance Optimization

• Batch WebSocket subscriptions
• Cache frequent API responses
• Implement exponential backoff for retries

FAQ

Q: How do I handle WebSocket disconnections?

A: The client automatically manages reconnections and resubscriptions. Listen for reconnected events to confirm restoration.

Q: Is browser support available?

A: Yes! Use the Webpack bundle from /dist or configure your bundler with the necessary polyfills.

Q: How frequently should I poll REST APIs?

A: For most use cases, combine WebSocket subscriptions with periodic REST API checks (every 30-60 seconds).

Q: Where can I find API rate limits?

A: Refer to OKX's official API documentation for current limits.

Project Structure

okx-api-new/
├── src/            # TypeScript source
├── lib/            # Compiled JavaScript
├── dist/           # Browser bundle
├── examples/       # Implementation samples
└── test/           # Integration tests

Contribution Guidelines

We welcome community contributions! Before submitting:

1. Ensure all tests pass (npm test)
2. Maintain TypeScript type coverage
3. Include relevant documentation updates

For bug reports or feature requests, please open a GitHub issue.

Additional Resources

• OKX Official API Docs
• TypeDoc Documentation
• WebSocket Implementation Examples

👉 Start building with OKX API today